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|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CVE-2016-4998 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:C | LOCAL | LOW | NONE | PARTIAL | NONE | COMPLETE | 5.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | HIGH | 7.1 | HIGH | 1.8 | 5.2 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0036.html', 'name': 'RHSA-2017:0036', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.5', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:50+01:00 | netfilter: x_tables: make sure e->next_offset covers remaining blob size
Otherwise this function may read data beyond the ruleset blob.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_compat_entry_size_and_hooks | check_compat_entry_size_and_hooks( struct compat_arpt_entry * e , struct xt_table_info * newinfo , unsigned int * size , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , const char * name) | ['e', 'newinfo', 'size', 'base', 'limit', 'hook_entries', 'underflows', 'name'] | check_compat_entry_size_and_hooks(struct compat_arpt_entry *e,
struct xt_table_info *newinfo,
unsigned int *size,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
const char *name)
{
struct xt_entry_target *t;
struct xt_target *target;
unsigned int entry_offset;
int ret, off, h;
duprintf("check_compat_entry_size_and_hooks %p\n", e);
if ((unsigned long)e % __alignof__(struct compat_arpt_entry) != 0 ||
(unsigned char *)e + sizeof(struct compat_arpt_entry) >= limit) {
duprintf("Bad offset %p, limit = %p\n", e, limit);
return -EINVAL;
}
if (e->next_offset < sizeof(struct compat_arpt_entry) +
sizeof(struct compat_xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
/* For purposes of check_entry casting the compat entry is fine */
ret = check_entry((struct arpt_entry *)e);
if (ret)
return ret;
off = sizeof(struct arpt_entry) - sizeof(struct compat_arpt_entry);
entry_offset = (void *)e - (void *)base;
t = compat_arpt_get_target(e);
target = xt_request_find_target(NFPROTO_ARP, t->u.user.name,
t->u.user.revision);
if (IS_ERR(target)) {
duprintf("check_compat_entry_size_and_hooks: `%s' not found\n",
t->u.user.name);
ret = PTR_ERR(target);
goto out;
}
t->u.kernel.target = target;
off += xt_compat_target_offset(target);
*size += off;
ret = xt_compat_add_offset(NFPROTO_ARP, entry_offset, off);
if (ret)
goto release_target;
/* Check hooks & underflows */
for (h = 0; h < NF_ARP_NUMHOOKS; h++) {
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
newinfo->underflow[h] = underflows[h];
}
/* Clear counters and comefrom */
memset(&e->counters, 0, sizeof(e->counters));
e->comefrom = 0;
return 0;
release_target:
module_put(t->u.kernel.target->me);
out:
return ret;
} | 423 | True | 1 |
|
CVE-2016-4998 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:C | LOCAL | LOW | NONE | PARTIAL | NONE | COMPLETE | 5.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | HIGH | 7.1 | HIGH | 1.8 | 5.2 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0036.html', 'name': 'RHSA-2017:0036', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.5', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:50+01:00 | netfilter: x_tables: make sure e->next_offset covers remaining blob size
Otherwise this function may read data beyond the ruleset blob.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct arpt_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | static inline int check_entry_size_and_hooks(struct arpt_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct arpt_entry) != 0 ||
(unsigned char *)e + sizeof(struct arpt_entry) >= limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct arpt_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
err = check_entry(e);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_ARP_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 277 | True | 1 |
|
CVE-2016-4998 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:C | LOCAL | LOW | NONE | PARTIAL | NONE | COMPLETE | 5.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | HIGH | 7.1 | HIGH | 1.8 | 5.2 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0036.html', 'name': 'RHSA-2017:0036', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.5', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:50+01:00 | netfilter: x_tables: make sure e->next_offset covers remaining blob size
Otherwise this function may read data beyond the ruleset blob.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_compat_entry_size_and_hooks | check_compat_entry_size_and_hooks( struct compat_ipt_entry * e , struct xt_table_info * newinfo , unsigned int * size , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , const char * name) | ['e', 'newinfo', 'size', 'base', 'limit', 'hook_entries', 'underflows', 'name'] | check_compat_entry_size_and_hooks(struct compat_ipt_entry *e,
struct xt_table_info *newinfo,
unsigned int *size,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
const char *name)
{
struct xt_entry_match *ematch;
struct xt_entry_target *t;
struct xt_target *target;
unsigned int entry_offset;
unsigned int j;
int ret, off, h;
duprintf("check_compat_entry_size_and_hooks %p\n", e);
if ((unsigned long)e % __alignof__(struct compat_ipt_entry) != 0 ||
(unsigned char *)e + sizeof(struct compat_ipt_entry) >= limit) {
duprintf("Bad offset %p, limit = %p\n", e, limit);
return -EINVAL;
}
if (e->next_offset < sizeof(struct compat_ipt_entry) +
sizeof(struct compat_xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
/* For purposes of check_entry casting the compat entry is fine */
ret = check_entry((struct ipt_entry *)e);
if (ret)
return ret;
off = sizeof(struct ipt_entry) - sizeof(struct compat_ipt_entry);
entry_offset = (void *)e - (void *)base;
j = 0;
xt_ematch_foreach(ematch, e) {
ret = compat_find_calc_match(ematch, name, &e->ip, &off);
if (ret != 0)
goto release_matches;
++j;
}
t = compat_ipt_get_target(e);
target = xt_request_find_target(NFPROTO_IPV4, t->u.user.name,
t->u.user.revision);
if (IS_ERR(target)) {
duprintf("check_compat_entry_size_and_hooks: `%s' not found\n",
t->u.user.name);
ret = PTR_ERR(target);
goto release_matches;
}
t->u.kernel.target = target;
off += xt_compat_target_offset(target);
*size += off;
ret = xt_compat_add_offset(AF_INET, entry_offset, off);
if (ret)
goto out;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
newinfo->underflow[h] = underflows[h];
}
/* Clear counters and comefrom */
memset(&e->counters, 0, sizeof(e->counters));
e->comefrom = 0;
return 0;
out:
module_put(t->u.kernel.target->me);
release_matches:
xt_ematch_foreach(ematch, e) {
if (j-- == 0)
break;
module_put(ematch->u.kernel.match->me);
}
return ret;
} | 503 | True | 1 |
|
CVE-2016-4998 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:C | LOCAL | LOW | NONE | PARTIAL | NONE | COMPLETE | 5.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | HIGH | 7.1 | HIGH | 1.8 | 5.2 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0036.html', 'name': 'RHSA-2017:0036', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.5', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:50+01:00 | netfilter: x_tables: make sure e->next_offset covers remaining blob size
Otherwise this function may read data beyond the ruleset blob.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct ipt_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | check_entry_size_and_hooks(struct ipt_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct ipt_entry) != 0 ||
(unsigned char *)e + sizeof(struct ipt_entry) >= limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct ipt_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
err = check_entry(e);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 277 | True | 1 |
|
CVE-2016-4998 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:C | LOCAL | LOW | NONE | PARTIAL | NONE | COMPLETE | 5.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | HIGH | 7.1 | HIGH | 1.8 | 5.2 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0036.html', 'name': 'RHSA-2017:0036', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.5', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:50+01:00 | netfilter: x_tables: make sure e->next_offset covers remaining blob size
Otherwise this function may read data beyond the ruleset blob.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_compat_entry_size_and_hooks | check_compat_entry_size_and_hooks( struct compat_ip6t_entry * e , struct xt_table_info * newinfo , unsigned int * size , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , const char * name) | ['e', 'newinfo', 'size', 'base', 'limit', 'hook_entries', 'underflows', 'name'] | check_compat_entry_size_and_hooks(struct compat_ip6t_entry *e,
struct xt_table_info *newinfo,
unsigned int *size,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
const char *name)
{
struct xt_entry_match *ematch;
struct xt_entry_target *t;
struct xt_target *target;
unsigned int entry_offset;
unsigned int j;
int ret, off, h;
duprintf("check_compat_entry_size_and_hooks %p\n", e);
if ((unsigned long)e % __alignof__(struct compat_ip6t_entry) != 0 ||
(unsigned char *)e + sizeof(struct compat_ip6t_entry) >= limit) {
duprintf("Bad offset %p, limit = %p\n", e, limit);
return -EINVAL;
}
if (e->next_offset < sizeof(struct compat_ip6t_entry) +
sizeof(struct compat_xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
/* For purposes of check_entry casting the compat entry is fine */
ret = check_entry((struct ip6t_entry *)e);
if (ret)
return ret;
off = sizeof(struct ip6t_entry) - sizeof(struct compat_ip6t_entry);
entry_offset = (void *)e - (void *)base;
j = 0;
xt_ematch_foreach(ematch, e) {
ret = compat_find_calc_match(ematch, name, &e->ipv6, &off);
if (ret != 0)
goto release_matches;
++j;
}
t = compat_ip6t_get_target(e);
target = xt_request_find_target(NFPROTO_IPV6, t->u.user.name,
t->u.user.revision);
if (IS_ERR(target)) {
duprintf("check_compat_entry_size_and_hooks: `%s' not found\n",
t->u.user.name);
ret = PTR_ERR(target);
goto release_matches;
}
t->u.kernel.target = target;
off += xt_compat_target_offset(target);
*size += off;
ret = xt_compat_add_offset(AF_INET6, entry_offset, off);
if (ret)
goto out;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
newinfo->underflow[h] = underflows[h];
}
/* Clear counters and comefrom */
memset(&e->counters, 0, sizeof(e->counters));
e->comefrom = 0;
return 0;
out:
module_put(t->u.kernel.target->me);
release_matches:
xt_ematch_foreach(ematch, e) {
if (j-- == 0)
break;
module_put(ematch->u.kernel.match->me);
}
return ret;
} | 503 | True | 1 |
|
CVE-2016-4998 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:C | LOCAL | LOW | NONE | PARTIAL | NONE | COMPLETE | 5.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | HIGH | 7.1 | HIGH | 1.8 | 5.2 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349886', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'https://github.com/torvalds/linux/commit/6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0036.html', 'name': 'RHSA-2017:0036', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.5', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The IPT_SO_SET_REPLACE setsockopt implementation in the netfilter subsystem in the Linux kernel before 4.6 allows local users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from kernel heap memory by leveraging in-container root access to provide a crafted offset value that leads to crossing a ruleset blob boundary.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:50+01:00 | netfilter: x_tables: make sure e->next_offset covers remaining blob size
Otherwise this function may read data beyond the ruleset blob.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 6e94e0cfb0887e4013b3b930fa6ab1fe6bb6ba91 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct ip6t_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | check_entry_size_and_hooks(struct ip6t_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct ip6t_entry) != 0 ||
(unsigned char *)e + sizeof(struct ip6t_entry) >= limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct ip6t_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
err = check_entry(e);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 277 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct arpt_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | static inline int check_entry_size_and_hooks(struct arpt_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct arpt_entry) != 0 ||
(unsigned char *)e + sizeof(struct arpt_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct arpt_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
err = check_entry(e);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_ARP_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 290 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 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'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 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{'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_underflow | check_underflow( const struct arpt_entry * e) | ['e'] | static bool check_underflow(const struct arpt_entry *e)
{
const struct xt_entry_target *t;
unsigned int verdict;
if (!unconditional(&e->arp))
return false;
t = arpt_get_target_c(e);
if (strcmp(t->u.user.name, XT_STANDARD_TARGET) != 0)
return false;
verdict = ((struct xt_standard_target *)t)->verdict;
verdict = -verdict - 1;
return verdict == NF_DROP || verdict == NF_ACCEPT;
} | 90 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | mark_source_chains | mark_source_chains( const struct xt_table_info * newinfo , unsigned int valid_hooks , void * entry0) | ['newinfo', 'valid_hooks', 'entry0'] | static int mark_source_chains(const struct xt_table_info *newinfo,
unsigned int valid_hooks, void *entry0)
{
unsigned int hook;
/* No recursion; use packet counter to save back ptrs (reset
* to 0 as we leave), and comefrom to save source hook bitmask.
*/
for (hook = 0; hook < NF_ARP_NUMHOOKS; hook++) {
unsigned int pos = newinfo->hook_entry[hook];
struct arpt_entry *e
= (struct arpt_entry *)(entry0 + pos);
if (!(valid_hooks & (1 << hook)))
continue;
/* Set initial back pointer. */
e->counters.pcnt = pos;
for (;;) {
const struct xt_standard_target *t
= (void *)arpt_get_target_c(e);
int visited = e->comefrom & (1 << hook);
if (e->comefrom & (1 << NF_ARP_NUMHOOKS)) {
pr_notice("arptables: loop hook %u pos %u %08X.\n",
hook, pos, e->comefrom);
return 0;
}
e->comefrom
|= ((1 << hook) | (1 << NF_ARP_NUMHOOKS));
/* Unconditional return/END. */
if ((e->target_offset == sizeof(struct arpt_entry) &&
(strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0) &&
t->verdict < 0 && unconditional(&e->arp)) ||
visited) {
unsigned int oldpos, size;
if ((strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0) &&
t->verdict < -NF_MAX_VERDICT - 1) {
duprintf("mark_source_chains: bad "
"negative verdict (%i)\n",
t->verdict);
return 0;
}
/* Return: backtrack through the last
* big jump.
*/
do {
e->comefrom ^= (1<<NF_ARP_NUMHOOKS);
oldpos = pos;
pos = e->counters.pcnt;
e->counters.pcnt = 0;
/* We're at the start. */
if (pos == oldpos)
goto next;
e = (struct arpt_entry *)
(entry0 + pos);
} while (oldpos == pos + e->next_offset);
/* Move along one */
size = e->next_offset;
e = (struct arpt_entry *)
(entry0 + pos + size);
e->counters.pcnt = pos;
pos += size;
} else {
int newpos = t->verdict;
if (strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0 &&
newpos >= 0) {
if (newpos > newinfo->size -
sizeof(struct arpt_entry)) {
duprintf("mark_source_chains: "
"bad verdict (%i)\n",
newpos);
return 0;
}
/* This a jump; chase it. */
duprintf("Jump rule %u -> %u\n",
pos, newpos);
} else {
/* ... this is a fallthru */
newpos = pos + e->next_offset;
}
e = (struct arpt_entry *)
(entry0 + newpos);
e->counters.pcnt = pos;
pos = newpos;
}
}
next:
duprintf("Finished chain %u\n", hook);
}
return 1;
} | 496 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | unconditional | unconditional( const struct arpt_arp * arp) | ['arp'] | static inline bool unconditional(const struct arpt_arp *arp)
{
static const struct arpt_arp uncond;
return memcmp(arp, &uncond, sizeof(uncond)) == 0;
} | 32 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct ipt_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | check_entry_size_and_hooks(struct ipt_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct ipt_entry) != 0 ||
(unsigned char *)e + sizeof(struct ipt_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct ipt_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
err = check_entry(e);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 290 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_underflow | check_underflow( const struct ipt_entry * e) | ['e'] | static bool check_underflow(const struct ipt_entry *e)
{
const struct xt_entry_target *t;
unsigned int verdict;
if (!unconditional(&e->ip))
return false;
t = ipt_get_target_c(e);
if (strcmp(t->u.user.name, XT_STANDARD_TARGET) != 0)
return false;
verdict = ((struct xt_standard_target *)t)->verdict;
verdict = -verdict - 1;
return verdict == NF_DROP || verdict == NF_ACCEPT;
} | 90 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | get_chainname_rulenum | get_chainname_rulenum( const struct ipt_entry * s , const struct ipt_entry * e , const char * hookname , const char ** chainname , const char ** comment , unsigned int * rulenum) | ['s', 'e', 'hookname', 'chainname', 'comment', 'rulenum'] | get_chainname_rulenum(const struct ipt_entry *s, const struct ipt_entry *e,
const char *hookname, const char **chainname,
const char **comment, unsigned int *rulenum)
{
const struct xt_standard_target *t = (void *)ipt_get_target_c(s);
if (strcmp(t->target.u.kernel.target->name, XT_ERROR_TARGET) == 0) {
/* Head of user chain: ERROR target with chainname */
*chainname = t->target.data;
(*rulenum) = 0;
} else if (s == e) {
(*rulenum)++;
if (s->target_offset == sizeof(struct ipt_entry) &&
strcmp(t->target.u.kernel.target->name,
XT_STANDARD_TARGET) == 0 &&
t->verdict < 0 &&
unconditional(&s->ip)) {
/* Tail of chains: STANDARD target (return/policy) */
*comment = *chainname == hookname
? comments[NF_IP_TRACE_COMMENT_POLICY]
: comments[NF_IP_TRACE_COMMENT_RETURN];
}
return 1;
} else
(*rulenum)++;
return 0;
} | 183 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | mark_source_chains | mark_source_chains( const struct xt_table_info * newinfo , unsigned int valid_hooks , void * entry0) | ['newinfo', 'valid_hooks', 'entry0'] | mark_source_chains(const struct xt_table_info *newinfo,
unsigned int valid_hooks, void *entry0)
{
unsigned int hook;
/* No recursion; use packet counter to save back ptrs (reset
to 0 as we leave), and comefrom to save source hook bitmask */
for (hook = 0; hook < NF_INET_NUMHOOKS; hook++) {
unsigned int pos = newinfo->hook_entry[hook];
struct ipt_entry *e = (struct ipt_entry *)(entry0 + pos);
if (!(valid_hooks & (1 << hook)))
continue;
/* Set initial back pointer. */
e->counters.pcnt = pos;
for (;;) {
const struct xt_standard_target *t
= (void *)ipt_get_target_c(e);
int visited = e->comefrom & (1 << hook);
if (e->comefrom & (1 << NF_INET_NUMHOOKS)) {
pr_err("iptables: loop hook %u pos %u %08X.\n",
hook, pos, e->comefrom);
return 0;
}
e->comefrom |= ((1 << hook) | (1 << NF_INET_NUMHOOKS));
/* Unconditional return/END. */
if ((e->target_offset == sizeof(struct ipt_entry) &&
(strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0) &&
t->verdict < 0 && unconditional(&e->ip)) ||
visited) {
unsigned int oldpos, size;
if ((strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0) &&
t->verdict < -NF_MAX_VERDICT - 1) {
duprintf("mark_source_chains: bad "
"negative verdict (%i)\n",
t->verdict);
return 0;
}
/* Return: backtrack through the last
big jump. */
do {
e->comefrom ^= (1<<NF_INET_NUMHOOKS);
#ifdef DEBUG_IP_FIREWALL_USER
if (e->comefrom
& (1 << NF_INET_NUMHOOKS)) {
duprintf("Back unset "
"on hook %u "
"rule %u\n",
hook, pos);
}
#endif
oldpos = pos;
pos = e->counters.pcnt;
e->counters.pcnt = 0;
/* We're at the start. */
if (pos == oldpos)
goto next;
e = (struct ipt_entry *)
(entry0 + pos);
} while (oldpos == pos + e->next_offset);
/* Move along one */
size = e->next_offset;
e = (struct ipt_entry *)
(entry0 + pos + size);
e->counters.pcnt = pos;
pos += size;
} else {
int newpos = t->verdict;
if (strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0 &&
newpos >= 0) {
if (newpos > newinfo->size -
sizeof(struct ipt_entry)) {
duprintf("mark_source_chains: "
"bad verdict (%i)\n",
newpos);
return 0;
}
/* This a jump; chase it. */
duprintf("Jump rule %u -> %u\n",
pos, newpos);
} else {
/* ... this is a fallthru */
newpos = pos + e->next_offset;
}
e = (struct ipt_entry *)
(entry0 + newpos);
e->counters.pcnt = pos;
pos = newpos;
}
}
next:
duprintf("Finished chain %u\n", hook);
}
return 1;
} | 522 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | unconditional | unconditional( const struct ipt_ip * ip) | ['ip'] | static inline bool unconditional(const struct ipt_ip *ip)
{
static const struct ipt_ip uncond;
return memcmp(ip, &uncond, sizeof(uncond)) == 0;
#undef FWINV
} | 32 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct ip6t_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | check_entry_size_and_hooks(struct ip6t_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct ip6t_entry) != 0 ||
(unsigned char *)e + sizeof(struct ip6t_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct ip6t_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
err = check_entry(e);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_err("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 290 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_underflow | check_underflow( const struct ip6t_entry * e) | ['e'] | static bool check_underflow(const struct ip6t_entry *e)
{
const struct xt_entry_target *t;
unsigned int verdict;
if (!unconditional(&e->ipv6))
return false;
t = ip6t_get_target_c(e);
if (strcmp(t->u.user.name, XT_STANDARD_TARGET) != 0)
return false;
verdict = ((struct xt_standard_target *)t)->verdict;
verdict = -verdict - 1;
return verdict == NF_DROP || verdict == NF_ACCEPT;
} | 90 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | get_chainname_rulenum | get_chainname_rulenum( const struct ip6t_entry * s , const struct ip6t_entry * e , const char * hookname , const char ** chainname , const char ** comment , unsigned int * rulenum) | ['s', 'e', 'hookname', 'chainname', 'comment', 'rulenum'] | get_chainname_rulenum(const struct ip6t_entry *s, const struct ip6t_entry *e,
const char *hookname, const char **chainname,
const char **comment, unsigned int *rulenum)
{
const struct xt_standard_target *t = (void *)ip6t_get_target_c(s);
if (strcmp(t->target.u.kernel.target->name, XT_ERROR_TARGET) == 0) {
/* Head of user chain: ERROR target with chainname */
*chainname = t->target.data;
(*rulenum) = 0;
} else if (s == e) {
(*rulenum)++;
if (s->target_offset == sizeof(struct ip6t_entry) &&
strcmp(t->target.u.kernel.target->name,
XT_STANDARD_TARGET) == 0 &&
t->verdict < 0 &&
unconditional(&s->ipv6)) {
/* Tail of chains: STANDARD target (return/policy) */
*comment = *chainname == hookname
? comments[NF_IP6_TRACE_COMMENT_POLICY]
: comments[NF_IP6_TRACE_COMMENT_RETURN];
}
return 1;
} else
(*rulenum)++;
return 0;
} | 183 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | mark_source_chains | mark_source_chains( const struct xt_table_info * newinfo , unsigned int valid_hooks , void * entry0) | ['newinfo', 'valid_hooks', 'entry0'] | mark_source_chains(const struct xt_table_info *newinfo,
unsigned int valid_hooks, void *entry0)
{
unsigned int hook;
/* No recursion; use packet counter to save back ptrs (reset
to 0 as we leave), and comefrom to save source hook bitmask */
for (hook = 0; hook < NF_INET_NUMHOOKS; hook++) {
unsigned int pos = newinfo->hook_entry[hook];
struct ip6t_entry *e = (struct ip6t_entry *)(entry0 + pos);
if (!(valid_hooks & (1 << hook)))
continue;
/* Set initial back pointer. */
e->counters.pcnt = pos;
for (;;) {
const struct xt_standard_target *t
= (void *)ip6t_get_target_c(e);
int visited = e->comefrom & (1 << hook);
if (e->comefrom & (1 << NF_INET_NUMHOOKS)) {
pr_err("iptables: loop hook %u pos %u %08X.\n",
hook, pos, e->comefrom);
return 0;
}
e->comefrom |= ((1 << hook) | (1 << NF_INET_NUMHOOKS));
/* Unconditional return/END. */
if ((e->target_offset == sizeof(struct ip6t_entry) &&
(strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0) &&
t->verdict < 0 &&
unconditional(&e->ipv6)) || visited) {
unsigned int oldpos, size;
if ((strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0) &&
t->verdict < -NF_MAX_VERDICT - 1) {
duprintf("mark_source_chains: bad "
"negative verdict (%i)\n",
t->verdict);
return 0;
}
/* Return: backtrack through the last
big jump. */
do {
e->comefrom ^= (1<<NF_INET_NUMHOOKS);
#ifdef DEBUG_IP_FIREWALL_USER
if (e->comefrom
& (1 << NF_INET_NUMHOOKS)) {
duprintf("Back unset "
"on hook %u "
"rule %u\n",
hook, pos);
}
#endif
oldpos = pos;
pos = e->counters.pcnt;
e->counters.pcnt = 0;
/* We're at the start. */
if (pos == oldpos)
goto next;
e = (struct ip6t_entry *)
(entry0 + pos);
} while (oldpos == pos + e->next_offset);
/* Move along one */
size = e->next_offset;
e = (struct ip6t_entry *)
(entry0 + pos + size);
e->counters.pcnt = pos;
pos += size;
} else {
int newpos = t->verdict;
if (strcmp(t->target.u.user.name,
XT_STANDARD_TARGET) == 0 &&
newpos >= 0) {
if (newpos > newinfo->size -
sizeof(struct ip6t_entry)) {
duprintf("mark_source_chains: "
"bad verdict (%i)\n",
newpos);
return 0;
}
/* This a jump; chase it. */
duprintf("Jump rule %u -> %u\n",
pos, newpos);
} else {
/* ... this is a fallthru */
newpos = pos + e->next_offset;
}
e = (struct ip6t_entry *)
(entry0 + newpos);
e->counters.pcnt = pos;
pos = newpos;
}
}
next:
duprintf("Finished chain %u\n", hook);
}
return 1;
} | 522 | True | 1 |
|
CVE-2016-3134 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 8.4 | HIGH | 2.5 | 5.9 | nan | [{'url': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=758', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d83fc74aa9ec72794373cb47432c5f7fb1a309', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84305', 'name': '84305', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-1', 'name': 'USN-2930-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-1', 'name': 'USN-2929-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2932-1', 'name': 'USN-2932-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-2', 'name': 'USN-2930-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2929-2', 'name': 'USN-2929-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2931-1', 'name': 'USN-2931-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2930-3', 'name': 'USN-2930-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.'}] | 2018-01-05T02:30Z | 2016-04-27T17:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Florian Westphal | 2016-03-22 18:02:52+01:00 | netfilter: x_tables: fix unconditional helper
Ben Hawkes says:
In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it
is possible for a user-supplied ipt_entry structure to have a large
next_offset field. This field is not bounds checked prior to writing a
counter value at the supplied offset.
Problem is that mark_source_chains should not have been called --
the rule doesn't have a next entry, so its supposed to return
an absolute verdict of either ACCEPT or DROP.
However, the function conditional() doesn't work as the name implies.
It only checks that the rule is using wildcard address matching.
However, an unconditional rule must also not be using any matches
(no -m args).
The underflow validator only checked the addresses, therefore
passing the 'unconditional absolute verdict' test, while
mark_source_chains also tested for presence of matches, and thus
proceeeded to the next (not-existent) rule.
Unify this so that all the callers have same idea of 'unconditional rule'.
Reported-by: Ben Hawkes <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 54d83fc74aa9ec72794373cb47432c5f7fb1a309 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | unconditional | unconditional( const struct ip6t_ip6 * ipv6) | ['ipv6'] | static inline bool unconditional(const struct ip6t_ip6 *ipv6)
{
static const struct ip6t_ip6 uncond;
return memcmp(ipv6, &uncond, sizeof(uncond)) == 0;
} | 32 | True | 1 |
|
CVE-2016-3136 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | PHYSICAL | LOW | NONE | NONE | UNCHANGED | NONE | NONE | HIGH | 4.6 | MEDIUM | 0.9 | 3.6 | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.1', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.1', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/03/14/2', 'name': '[oss-security] 20160314 Re: CVE request -- linux kernel: crash on invalid USB device descriptors (mct_u232 driver)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/4e9a0b05257f29cf4b75f3209243ed71614d062e', 'name': 'https://github.com/torvalds/linux/commit/4e9a0b05257f29cf4b75f3209243ed71614d062e', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317007', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317007', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4e9a0b05257f29cf4b75f3209243ed71614d062e', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4e9a0b05257f29cf4b75f3209243ed71614d062e', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1283370', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1283370', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-2997-1', 'name': 'USN-2997-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2996-1', 'name': 'USN-2996-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3000-1', 'name': 'USN-3000-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84299', 'name': '84299', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00060.html', 'name': 'openSUSE-SU-2016:1382', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2968-1', 'name': 'USN-2968-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2971-1', 'name': 'USN-2971-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2971-2', 'name': 'USN-2971-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2970-1', 'name': 'USN-2970-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2971-3', 'name': 'USN-2971-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2968-2', 'name': 'USN-2968-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/39541/', 'name': '39541', 'refsource': 'EXPLOIT-DB', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.0', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The mct_u232_msr_to_state function in drivers/usb/serial/mct_u232.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted USB device without two interrupt-in endpoint descriptors.'}] | 2017-09-08T01:29Z | 2016-05-02T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Oliver Neukum | 2016-03-31 12:04:24-04:00 | USB: mct_u232: add sanity checking in probe
An attack using the lack of sanity checking in probe is known. This
patch checks for the existence of a second port.
CVE-2016-3136
Signed-off-by: Oliver Neukum <[email protected]>
CC: [email protected]
[johan: add error message ]
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]> | 4e9a0b05257f29cf4b75f3209243ed71614d062e | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | mct_u232_port_probe | mct_u232_port_probe( struct usb_serial_port * port) | ['port'] | static int mct_u232_port_probe(struct usb_serial_port *port)
{
struct mct_u232_private *priv;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
/* Use second interrupt-in endpoint for reading. */
priv->read_urb = port->serial->port[1]->interrupt_in_urb;
priv->read_urb->context = port;
spin_lock_init(&priv->lock);
usb_set_serial_port_data(port, priv);
return 0;
} | 77 | True | 1 |
|
CVE-2016-3137 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | PHYSICAL | LOW | NONE | NONE | UNCHANGED | NONE | NONE | HIGH | 4.6 | MEDIUM | 0.9 | 3.6 | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.1', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.1', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/03/14/3', 'name': '[oss-security] 20160314 Re: CVE request -- linux kernel: crash on invalid USB device descriptors (cypress_m8 driver)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1316996', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1316996', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/c55aee1bf0e6b6feec8b2927b43f7a09a6d5f754', 'name': 'https://github.com/torvalds/linux/commit/c55aee1bf0e6b6feec8b2927b43f7a09a6d5f754', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c55aee1bf0e6b6feec8b2927b43f7a09a6d5f754', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c55aee1bf0e6b6feec8b2927b43f7a09a6d5f754', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2997-1', 'name': 'USN-2997-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2996-1', 'name': 'USN-2996-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3000-1', 'name': 'USN-3000-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html', 'name': 'SUSE-SU-2016:1707', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html', 'name': 'SUSE-SU-2016:1764', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/84300', 'name': '84300', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00060.html', 'name': 'openSUSE-SU-2016:1382', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2968-1', 'name': 'USN-2968-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2971-1', 'name': 'USN-2971-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2971-2', 'name': 'USN-2971-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2970-1', 'name': 'USN-2970-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2971-3', 'name': 'USN-2971-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2968-2', 'name': 'USN-2968-2', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.0', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'drivers/usb/serial/cypress_m8.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a USB device without both an interrupt-in and an interrupt-out endpoint descriptor, related to the cypress_generic_port_probe and cypress_open functions.'}] | 2016-12-01T03:09Z | 2016-05-02T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Oliver Neukum | 2016-03-31 12:04:25-04:00 | USB: cypress_m8: add endpoint sanity check
An attack using missing endpoints exists.
CVE-2016-3137
Signed-off-by: Oliver Neukum <[email protected]>
CC: [email protected]
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]> | c55aee1bf0e6b6feec8b2927b43f7a09a6d5f754 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | cypress_open | cypress_open( struct tty_struct * tty , struct usb_serial_port * port) | ['tty', 'port'] | static int cypress_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct cypress_private *priv = usb_get_serial_port_data(port);
struct usb_serial *serial = port->serial;
unsigned long flags;
int result = 0;
if (!priv->comm_is_ok)
return -EIO;
/* clear halts before open */
usb_clear_halt(serial->dev, 0x81);
usb_clear_halt(serial->dev, 0x02);
spin_lock_irqsave(&priv->lock, flags);
/* reset read/write statistics */
priv->bytes_in = 0;
priv->bytes_out = 0;
priv->cmd_count = 0;
priv->rx_flags = 0;
spin_unlock_irqrestore(&priv->lock, flags);
/* Set termios */
cypress_send(port);
if (tty)
cypress_set_termios(tty, port, &priv->tmp_termios);
/* setup the port and start reading from the device */
if (!port->interrupt_in_urb) {
dev_err(&port->dev, "%s - interrupt_in_urb is empty!\n",
__func__);
return -1;
}
usb_fill_int_urb(port->interrupt_in_urb, serial->dev,
usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress),
port->interrupt_in_urb->transfer_buffer,
port->interrupt_in_urb->transfer_buffer_length,
cypress_read_int_callback, port, priv->read_urb_interval);
result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (result) {
dev_err(&port->dev,
"%s - failed submitting read urb, error %d\n",
__func__, result);
cypress_set_dead(port);
}
return result;
} /* cypress_open */ | 242 | True | 1 |
|
CVE-2016-2187 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | PHYSICAL | LOW | NONE | NONE | UNCHANGED | NONE | NONE | HIGH | 4.6 | MEDIUM | 0.9 | 3.6 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=162f98dea487206d9ab79fc12ed64700667a894d', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=162f98dea487206d9ab79fc12ed64700667a894d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/162f98dea487206d9ab79fc12ed64700667a894d', 'name': 'https://github.com/torvalds/linux/commit/162f98dea487206d9ab79fc12ed64700667a894d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317017', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1317017', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-2997-1', 'name': 'USN-2997-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2996-1', 'name': 'USN-2996-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3000-1', 'name': 'USN-3000-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2998-1', 'name': 'USN-2998-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3002-1', 'name': 'USN-3002-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3003-1', 'name': 'USN-3003-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3001-1', 'name': 'USN-3001-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3004-1', 'name': 'USN-3004-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2989-1', 'name': 'USN-2989-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/85425', 'name': '85425', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The gtco_probe function in drivers/input/tablet/gtco.c in the Linux kernel through 4.5.2 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted endpoints value in a USB device descriptor.'}] | 2016-11-28T20:03Z | 2016-05-02T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Vladis Dronov | 2016-03-31 10:53:42-07:00 | Input: gtco - fix crash on detecting device without endpoints
The gtco driver expects at least one valid endpoint. If given malicious
descriptors that specify 0 for the number of endpoints, it will crash in
the probe function. Ensure there is at least one endpoint on the interface
before using it.
Also let's fix a minor coding style issue.
The full correct report of this issue can be found in the public
Red Hat Bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=1283385
Reported-by: Ralf Spenneberg <[email protected]>
Signed-off-by: Vladis Dronov <[email protected]>
Cc: [email protected]
Signed-off-by: Dmitry Torokhov <[email protected]> | 162f98dea487206d9ab79fc12ed64700667a894d | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | gtco_probe | gtco_probe( struct usb_interface * usbinterface , const struct usb_device_id * id) | ['usbinterface', 'id'] | static int gtco_probe(struct usb_interface *usbinterface,
const struct usb_device_id *id)
{
struct gtco *gtco;
struct input_dev *input_dev;
struct hid_descriptor *hid_desc;
char *report;
int result = 0, retry;
int error;
struct usb_endpoint_descriptor *endpoint;
/* Allocate memory for device structure */
gtco = kzalloc(sizeof(struct gtco), GFP_KERNEL);
input_dev = input_allocate_device();
if (!gtco || !input_dev) {
dev_err(&usbinterface->dev, "No more memory\n");
error = -ENOMEM;
goto err_free_devs;
}
/* Set pointer to the input device */
gtco->inputdevice = input_dev;
/* Save interface information */
gtco->usbdev = interface_to_usbdev(usbinterface);
gtco->intf = usbinterface;
/* Allocate some data for incoming reports */
gtco->buffer = usb_alloc_coherent(gtco->usbdev, REPORT_MAX_SIZE,
GFP_KERNEL, >co->buf_dma);
if (!gtco->buffer) {
dev_err(&usbinterface->dev, "No more memory for us buffers\n");
error = -ENOMEM;
goto err_free_devs;
}
/* Allocate URB for reports */
gtco->urbinfo = usb_alloc_urb(0, GFP_KERNEL);
if (!gtco->urbinfo) {
dev_err(&usbinterface->dev, "Failed to allocate URB\n");
error = -ENOMEM;
goto err_free_buf;
}
/*
* The endpoint is always altsetting 0, we know this since we know
* this device only has one interrupt endpoint
*/
endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
/* Some debug */
dev_dbg(&usbinterface->dev, "gtco # interfaces: %d\n", usbinterface->num_altsetting);
dev_dbg(&usbinterface->dev, "num endpoints: %d\n", usbinterface->cur_altsetting->desc.bNumEndpoints);
dev_dbg(&usbinterface->dev, "interface class: %d\n", usbinterface->cur_altsetting->desc.bInterfaceClass);
dev_dbg(&usbinterface->dev, "endpoint: attribute:0x%x type:0x%x\n", endpoint->bmAttributes, endpoint->bDescriptorType);
if (usb_endpoint_xfer_int(endpoint))
dev_dbg(&usbinterface->dev, "endpoint: we have interrupt endpoint\n");
dev_dbg(&usbinterface->dev, "endpoint extra len:%d\n", usbinterface->altsetting[0].extralen);
/*
* Find the HID descriptor so we can find out the size of the
* HID report descriptor
*/
if (usb_get_extra_descriptor(usbinterface->cur_altsetting,
HID_DEVICE_TYPE, &hid_desc) != 0){
dev_err(&usbinterface->dev,
"Can't retrieve exta USB descriptor to get hid report descriptor length\n");
error = -EIO;
goto err_free_urb;
}
dev_dbg(&usbinterface->dev,
"Extra descriptor success: type:%d len:%d\n",
hid_desc->bDescriptorType, hid_desc->wDescriptorLength);
report = kzalloc(le16_to_cpu(hid_desc->wDescriptorLength), GFP_KERNEL);
if (!report) {
dev_err(&usbinterface->dev, "No more memory for report\n");
error = -ENOMEM;
goto err_free_urb;
}
/* Couple of tries to get reply */
for (retry = 0; retry < 3; retry++) {
result = usb_control_msg(gtco->usbdev,
usb_rcvctrlpipe(gtco->usbdev, 0),
USB_REQ_GET_DESCRIPTOR,
USB_RECIP_INTERFACE | USB_DIR_IN,
REPORT_DEVICE_TYPE << 8,
0, /* interface */
report,
le16_to_cpu(hid_desc->wDescriptorLength),
5000); /* 5 secs */
dev_dbg(&usbinterface->dev, "usb_control_msg result: %d\n", result);
if (result == le16_to_cpu(hid_desc->wDescriptorLength)) {
parse_hid_report_descriptor(gtco, report, result);
break;
}
}
kfree(report);
/* If we didn't get the report, fail */
if (result != le16_to_cpu(hid_desc->wDescriptorLength)) {
dev_err(&usbinterface->dev,
"Failed to get HID Report Descriptor of size: %d\n",
hid_desc->wDescriptorLength);
error = -EIO;
goto err_free_urb;
}
/* Create a device file node */
usb_make_path(gtco->usbdev, gtco->usbpath, sizeof(gtco->usbpath));
strlcat(gtco->usbpath, "/input0", sizeof(gtco->usbpath));
/* Set Input device functions */
input_dev->open = gtco_input_open;
input_dev->close = gtco_input_close;
/* Set input device information */
input_dev->name = "GTCO_CalComp";
input_dev->phys = gtco->usbpath;
input_set_drvdata(input_dev, gtco);
/* Now set up all the input device capabilities */
gtco_setup_caps(input_dev);
/* Set input device required ID information */
usb_to_input_id(gtco->usbdev, &input_dev->id);
input_dev->dev.parent = &usbinterface->dev;
/* Setup the URB, it will be posted later on open of input device */
endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
usb_fill_int_urb(gtco->urbinfo,
gtco->usbdev,
usb_rcvintpipe(gtco->usbdev,
endpoint->bEndpointAddress),
gtco->buffer,
REPORT_MAX_SIZE,
gtco_urb_callback,
gtco,
endpoint->bInterval);
gtco->urbinfo->transfer_dma = gtco->buf_dma;
gtco->urbinfo->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
/* Save gtco pointer in USB interface gtco */
usb_set_intfdata(usbinterface, gtco);
/* All done, now register the input device */
error = input_register_device(input_dev);
if (error)
goto err_free_urb;
return 0;
err_free_urb:
usb_free_urb(gtco->urbinfo);
err_free_buf:
usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
gtco->buffer, gtco->buf_dma);
err_free_devs:
input_free_device(input_dev);
kfree(gtco);
return error;
} | 782 | True | 1 |
|
CVE-2016-7914 | False | False | False | True | AV:N/AC:M/Au:N/C:C/I:N/A:N | NETWORK | MEDIUM | NONE | COMPLETE | NONE | NONE | 7.1 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | LOCAL | LOW | NONE | REQUIRED | UNCHANGED | HIGH | NONE | NONE | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'https://github.com/torvalds/linux/commit/8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2', 'name': 'https://github.com/torvalds/linux/commit/8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'http://source.android.com/security/bulletin/2016-11-01.html', 'name': 'http://source.android.com/security/bulletin/2016-11-01.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/94138', 'name': '94138', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-125'}, {'lang': 'en', 'value': 'CWE-476'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.5.3 does not check whether a slot is a leaf, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and out-of-bounds read) via an application that uses associative-array data structures, as demonstrated by the keyutils test suite.'}] | 2018-01-05T02:31Z | 2016-11-16T05:59Z | Out-of-bounds Read | The software reads data past the end, or before the beginning, of the intended buffer. | Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.
| https://cwe.mitre.org/data/definitions/125.html | 0 | Jerome Marchand | 2016-04-06 14:06:48+01:00 | assoc_array: don't call compare_object() on a node
Changes since V1: fixed the description and added KASan warning.
In assoc_array_insert_into_terminal_node(), we call the
compare_object() method on all non-empty slots, even when they're
not leaves, passing a pointer to an unexpected structure to
compare_object(). Currently it causes an out-of-bound read access
in keyring_compare_object detected by KASan (see below). The issue
is easily reproduced with keyutils testsuite.
Only call compare_object() when the slot is a leave.
KASan warning:
==================================================================
BUG: KASAN: slab-out-of-bounds in keyring_compare_object+0x213/0x240 at addr ffff880060a6f838
Read of size 8 by task keyctl/1655
=============================================================================
BUG kmalloc-192 (Not tainted): kasan: bad access detected
-----------------------------------------------------------------------------
Disabling lock debugging due to kernel taint
INFO: Allocated in assoc_array_insert+0xfd0/0x3a60 age=69 cpu=1 pid=1647
___slab_alloc+0x563/0x5c0
__slab_alloc+0x51/0x90
kmem_cache_alloc_trace+0x263/0x300
assoc_array_insert+0xfd0/0x3a60
__key_link_begin+0xfc/0x270
key_create_or_update+0x459/0xaf0
SyS_add_key+0x1ba/0x350
entry_SYSCALL_64_fastpath+0x12/0x76
INFO: Slab 0xffffea0001829b80 objects=16 used=8 fp=0xffff880060a6f550 flags=0x3fff8000004080
INFO: Object 0xffff880060a6f740 @offset=5952 fp=0xffff880060a6e5d1
Bytes b4 ffff880060a6f730: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f740: d1 e5 a6 60 00 88 ff ff 0e 00 00 00 00 00 00 00 ...`............
Object ffff880060a6f750: 02 cf 8e 60 00 88 ff ff 02 c0 8e 60 00 88 ff ff ...`.......`....
Object ffff880060a6f760: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f770: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f790: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7d0: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
CPU: 0 PID: 1655 Comm: keyctl Tainted: G B 4.5.0-rc4-kasan+ #291
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
0000000000000000 000000001b2800b4 ffff880060a179e0 ffffffff81b60491
ffff88006c802900 ffff880060a6f740 ffff880060a17a10 ffffffff815e2969
ffff88006c802900 ffffea0001829b80 ffff880060a6f740 ffff880060a6e650
Call Trace:
[<ffffffff81b60491>] dump_stack+0x85/0xc4
[<ffffffff815e2969>] print_trailer+0xf9/0x150
[<ffffffff815e9454>] object_err+0x34/0x40
[<ffffffff815ebe50>] kasan_report_error+0x230/0x550
[<ffffffff819949be>] ? keyring_get_key_chunk+0x13e/0x210
[<ffffffff815ec62d>] __asan_report_load_n_noabort+0x5d/0x70
[<ffffffff81994cc3>] ? keyring_compare_object+0x213/0x240
[<ffffffff81994cc3>] keyring_compare_object+0x213/0x240
[<ffffffff81bc238c>] assoc_array_insert+0x86c/0x3a60
[<ffffffff81bc1b20>] ? assoc_array_cancel_edit+0x70/0x70
[<ffffffff8199797d>] ? __key_link_begin+0x20d/0x270
[<ffffffff8199786c>] __key_link_begin+0xfc/0x270
[<ffffffff81993389>] key_create_or_update+0x459/0xaf0
[<ffffffff8128ce0d>] ? trace_hardirqs_on+0xd/0x10
[<ffffffff81992f30>] ? key_type_lookup+0xc0/0xc0
[<ffffffff8199e19d>] ? lookup_user_key+0x13d/0xcd0
[<ffffffff81534763>] ? memdup_user+0x53/0x80
[<ffffffff819983ea>] SyS_add_key+0x1ba/0x350
[<ffffffff81998230>] ? key_get_type_from_user.constprop.6+0xa0/0xa0
[<ffffffff828bcf4e>] ? retint_user+0x18/0x23
[<ffffffff8128cc7e>] ? trace_hardirqs_on_caller+0x3fe/0x580
[<ffffffff81004017>] ? trace_hardirqs_on_thunk+0x17/0x19
[<ffffffff828bc432>] entry_SYSCALL_64_fastpath+0x12/0x76
Memory state around the buggy address:
ffff880060a6f700: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
ffff880060a6f780: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
>ffff880060a6f800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff880060a6f880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff880060a6f900: fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00
==================================================================
Signed-off-by: Jerome Marchand <[email protected]>
Signed-off-by: David Howells <[email protected]>
cc: [email protected] | 8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | assoc_array_insert_into_terminal_node | assoc_array_insert_into_terminal_node( struct assoc_array_edit * edit , const struct assoc_array_ops * ops , const void * index_key , struct assoc_array_walk_result * result) | ['edit', 'ops', 'index_key', 'result'] | static bool assoc_array_insert_into_terminal_node(struct assoc_array_edit *edit,
const struct assoc_array_ops *ops,
const void *index_key,
struct assoc_array_walk_result *result)
{
struct assoc_array_shortcut *shortcut, *new_s0;
struct assoc_array_node *node, *new_n0, *new_n1, *side;
struct assoc_array_ptr *ptr;
unsigned long dissimilarity, base_seg, blank;
size_t keylen;
bool have_meta;
int level, diff;
int slot, next_slot, free_slot, i, j;
node = result->terminal_node.node;
level = result->terminal_node.level;
edit->segment_cache[ASSOC_ARRAY_FAN_OUT] = result->terminal_node.slot;
pr_devel("-->%s()\n", __func__);
/* We arrived at a node which doesn't have an onward node or shortcut
* pointer that we have to follow. This means that (a) the leaf we
* want must go here (either by insertion or replacement) or (b) we
* need to split this node and insert in one of the fragments.
*/
free_slot = -1;
/* Firstly, we have to check the leaves in this node to see if there's
* a matching one we should replace in place.
*/
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
ptr = node->slots[i];
if (!ptr) {
free_slot = i;
continue;
}
if (ops->compare_object(assoc_array_ptr_to_leaf(ptr), index_key)) {
pr_devel("replace in slot %d\n", i);
edit->leaf_p = &node->slots[i];
edit->dead_leaf = node->slots[i];
pr_devel("<--%s() = ok [replace]\n", __func__);
return true;
}
}
/* If there is a free slot in this node then we can just insert the
* leaf here.
*/
if (free_slot >= 0) {
pr_devel("insert in free slot %d\n", free_slot);
edit->leaf_p = &node->slots[free_slot];
edit->adjust_count_on = node;
pr_devel("<--%s() = ok [insert]\n", __func__);
return true;
}
/* The node has no spare slots - so we're either going to have to split
* it or insert another node before it.
*
* Whatever, we're going to need at least two new nodes - so allocate
* those now. We may also need a new shortcut, but we deal with that
* when we need it.
*/
new_n0 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
if (!new_n0)
return false;
edit->new_meta[0] = assoc_array_node_to_ptr(new_n0);
new_n1 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
if (!new_n1)
return false;
edit->new_meta[1] = assoc_array_node_to_ptr(new_n1);
/* We need to find out how similar the leaves are. */
pr_devel("no spare slots\n");
have_meta = false;
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
ptr = node->slots[i];
if (assoc_array_ptr_is_meta(ptr)) {
edit->segment_cache[i] = 0xff;
have_meta = true;
continue;
}
base_seg = ops->get_object_key_chunk(
assoc_array_ptr_to_leaf(ptr), level);
base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
edit->segment_cache[i] = base_seg & ASSOC_ARRAY_FAN_MASK;
}
if (have_meta) {
pr_devel("have meta\n");
goto split_node;
}
/* The node contains only leaves */
dissimilarity = 0;
base_seg = edit->segment_cache[0];
for (i = 1; i < ASSOC_ARRAY_FAN_OUT; i++)
dissimilarity |= edit->segment_cache[i] ^ base_seg;
pr_devel("only leaves; dissimilarity=%lx\n", dissimilarity);
if ((dissimilarity & ASSOC_ARRAY_FAN_MASK) == 0) {
/* The old leaves all cluster in the same slot. We will need
* to insert a shortcut if the new node wants to cluster with them.
*/
if ((edit->segment_cache[ASSOC_ARRAY_FAN_OUT] ^ base_seg) == 0)
goto all_leaves_cluster_together;
/* Otherwise we can just insert a new node ahead of the old
* one.
*/
goto present_leaves_cluster_but_not_new_leaf;
}
split_node:
pr_devel("split node\n");
/* We need to split the current node; we know that the node doesn't
* simply contain a full set of leaves that cluster together (it
* contains meta pointers and/or non-clustering leaves).
*
* We need to expel at least two leaves out of a set consisting of the
* leaves in the node and the new leaf.
*
* We need a new node (n0) to replace the current one and a new node to
* take the expelled nodes (n1).
*/
edit->set[0].to = assoc_array_node_to_ptr(new_n0);
new_n0->back_pointer = node->back_pointer;
new_n0->parent_slot = node->parent_slot;
new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
new_n1->parent_slot = -1; /* Need to calculate this */
do_split_node:
pr_devel("do_split_node\n");
new_n0->nr_leaves_on_branch = node->nr_leaves_on_branch;
new_n1->nr_leaves_on_branch = 0;
/* Begin by finding two matching leaves. There have to be at least two
* that match - even if there are meta pointers - because any leaf that
* would match a slot with a meta pointer in it must be somewhere
* behind that meta pointer and cannot be here. Further, given N
* remaining leaf slots, we now have N+1 leaves to go in them.
*/
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
slot = edit->segment_cache[i];
if (slot != 0xff)
for (j = i + 1; j < ASSOC_ARRAY_FAN_OUT + 1; j++)
if (edit->segment_cache[j] == slot)
goto found_slot_for_multiple_occupancy;
}
found_slot_for_multiple_occupancy:
pr_devel("same slot: %x %x [%02x]\n", i, j, slot);
BUG_ON(i >= ASSOC_ARRAY_FAN_OUT);
BUG_ON(j >= ASSOC_ARRAY_FAN_OUT + 1);
BUG_ON(slot >= ASSOC_ARRAY_FAN_OUT);
new_n1->parent_slot = slot;
/* Metadata pointers cannot change slot */
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++)
if (assoc_array_ptr_is_meta(node->slots[i]))
new_n0->slots[i] = node->slots[i];
else
new_n0->slots[i] = NULL;
BUG_ON(new_n0->slots[slot] != NULL);
new_n0->slots[slot] = assoc_array_node_to_ptr(new_n1);
/* Filter the leaf pointers between the new nodes */
free_slot = -1;
next_slot = 0;
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
if (assoc_array_ptr_is_meta(node->slots[i]))
continue;
if (edit->segment_cache[i] == slot) {
new_n1->slots[next_slot++] = node->slots[i];
new_n1->nr_leaves_on_branch++;
} else {
do {
free_slot++;
} while (new_n0->slots[free_slot] != NULL);
new_n0->slots[free_slot] = node->slots[i];
}
}
pr_devel("filtered: f=%x n=%x\n", free_slot, next_slot);
if (edit->segment_cache[ASSOC_ARRAY_FAN_OUT] != slot) {
do {
free_slot++;
} while (new_n0->slots[free_slot] != NULL);
edit->leaf_p = &new_n0->slots[free_slot];
edit->adjust_count_on = new_n0;
} else {
edit->leaf_p = &new_n1->slots[next_slot++];
edit->adjust_count_on = new_n1;
}
BUG_ON(next_slot <= 1);
edit->set_backpointers_to = assoc_array_node_to_ptr(new_n0);
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
if (edit->segment_cache[i] == 0xff) {
ptr = node->slots[i];
BUG_ON(assoc_array_ptr_is_leaf(ptr));
if (assoc_array_ptr_is_node(ptr)) {
side = assoc_array_ptr_to_node(ptr);
edit->set_backpointers[i] = &side->back_pointer;
} else {
shortcut = assoc_array_ptr_to_shortcut(ptr);
edit->set_backpointers[i] = &shortcut->back_pointer;
}
}
}
ptr = node->back_pointer;
if (!ptr)
edit->set[0].ptr = &edit->array->root;
else if (assoc_array_ptr_is_node(ptr))
edit->set[0].ptr = &assoc_array_ptr_to_node(ptr)->slots[node->parent_slot];
else
edit->set[0].ptr = &assoc_array_ptr_to_shortcut(ptr)->next_node;
edit->excised_meta[0] = assoc_array_node_to_ptr(node);
pr_devel("<--%s() = ok [split node]\n", __func__);
return true;
present_leaves_cluster_but_not_new_leaf:
/* All the old leaves cluster in the same slot, but the new leaf wants
* to go into a different slot, so we create a new node to hold the new
* leaf and a pointer to a new node holding all the old leaves.
*/
pr_devel("present leaves cluster but not new leaf\n");
new_n0->back_pointer = node->back_pointer;
new_n0->parent_slot = node->parent_slot;
new_n0->nr_leaves_on_branch = node->nr_leaves_on_branch;
new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
new_n1->parent_slot = edit->segment_cache[0];
new_n1->nr_leaves_on_branch = node->nr_leaves_on_branch;
edit->adjust_count_on = new_n0;
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++)
new_n1->slots[i] = node->slots[i];
new_n0->slots[edit->segment_cache[0]] = assoc_array_node_to_ptr(new_n0);
edit->leaf_p = &new_n0->slots[edit->segment_cache[ASSOC_ARRAY_FAN_OUT]];
edit->set[0].ptr = &assoc_array_ptr_to_node(node->back_pointer)->slots[node->parent_slot];
edit->set[0].to = assoc_array_node_to_ptr(new_n0);
edit->excised_meta[0] = assoc_array_node_to_ptr(node);
pr_devel("<--%s() = ok [insert node before]\n", __func__);
return true;
all_leaves_cluster_together:
/* All the leaves, new and old, want to cluster together in this node
* in the same slot, so we have to replace this node with a shortcut to
* skip over the identical parts of the key and then place a pair of
* nodes, one inside the other, at the end of the shortcut and
* distribute the keys between them.
*
* Firstly we need to work out where the leaves start diverging as a
* bit position into their keys so that we know how big the shortcut
* needs to be.
*
* We only need to make a single pass of N of the N+1 leaves because if
* any keys differ between themselves at bit X then at least one of
* them must also differ with the base key at bit X or before.
*/
pr_devel("all leaves cluster together\n");
diff = INT_MAX;
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
int x = ops->diff_objects(assoc_array_ptr_to_leaf(node->slots[i]),
index_key);
if (x < diff) {
BUG_ON(x < 0);
diff = x;
}
}
BUG_ON(diff == INT_MAX);
BUG_ON(diff < level + ASSOC_ARRAY_LEVEL_STEP);
keylen = round_up(diff, ASSOC_ARRAY_KEY_CHUNK_SIZE);
keylen >>= ASSOC_ARRAY_KEY_CHUNK_SHIFT;
new_s0 = kzalloc(sizeof(struct assoc_array_shortcut) +
keylen * sizeof(unsigned long), GFP_KERNEL);
if (!new_s0)
return false;
edit->new_meta[2] = assoc_array_shortcut_to_ptr(new_s0);
edit->set[0].to = assoc_array_shortcut_to_ptr(new_s0);
new_s0->back_pointer = node->back_pointer;
new_s0->parent_slot = node->parent_slot;
new_s0->next_node = assoc_array_node_to_ptr(new_n0);
new_n0->back_pointer = assoc_array_shortcut_to_ptr(new_s0);
new_n0->parent_slot = 0;
new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
new_n1->parent_slot = -1; /* Need to calculate this */
new_s0->skip_to_level = level = diff & ~ASSOC_ARRAY_LEVEL_STEP_MASK;
pr_devel("skip_to_level = %d [diff %d]\n", level, diff);
BUG_ON(level <= 0);
for (i = 0; i < keylen; i++)
new_s0->index_key[i] =
ops->get_key_chunk(index_key, i * ASSOC_ARRAY_KEY_CHUNK_SIZE);
blank = ULONG_MAX << (level & ASSOC_ARRAY_KEY_CHUNK_MASK);
pr_devel("blank off [%zu] %d: %lx\n", keylen - 1, level, blank);
new_s0->index_key[keylen - 1] &= ~blank;
/* This now reduces to a node splitting exercise for which we'll need
* to regenerate the disparity table.
*/
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
ptr = node->slots[i];
base_seg = ops->get_object_key_chunk(assoc_array_ptr_to_leaf(ptr),
level);
base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
edit->segment_cache[i] = base_seg & ASSOC_ARRAY_FAN_MASK;
}
base_seg = ops->get_key_chunk(index_key, level);
base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
edit->segment_cache[ASSOC_ARRAY_FAN_OUT] = base_seg & ASSOC_ARRAY_FAN_MASK;
goto do_split_node;
} | 1717 | True | 1 |
|
CVE-2016-7914 | False | False | False | True | AV:N/AC:M/Au:N/C:C/I:N/A:N | NETWORK | MEDIUM | NONE | COMPLETE | NONE | NONE | 7.1 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | LOCAL | LOW | NONE | REQUIRED | UNCHANGED | HIGH | NONE | NONE | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'https://github.com/torvalds/linux/commit/8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2', 'name': 'https://github.com/torvalds/linux/commit/8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'http://source.android.com/security/bulletin/2016-11-01.html', 'name': 'http://source.android.com/security/bulletin/2016-11-01.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/94138', 'name': '94138', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-125'}, {'lang': 'en', 'value': 'CWE-476'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.5.3 does not check whether a slot is a leaf, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and out-of-bounds read) via an application that uses associative-array data structures, as demonstrated by the keyutils test suite.'}] | 2018-01-05T02:31Z | 2016-11-16T05:59Z | NULL Pointer Dereference | A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. | NULL pointer dereference issues can occur through a number of flaws, including race conditions, and simple programming omissions.
| https://cwe.mitre.org/data/definitions/476.html | 0 | Jerome Marchand | 2016-04-06 14:06:48+01:00 | assoc_array: don't call compare_object() on a node
Changes since V1: fixed the description and added KASan warning.
In assoc_array_insert_into_terminal_node(), we call the
compare_object() method on all non-empty slots, even when they're
not leaves, passing a pointer to an unexpected structure to
compare_object(). Currently it causes an out-of-bound read access
in keyring_compare_object detected by KASan (see below). The issue
is easily reproduced with keyutils testsuite.
Only call compare_object() when the slot is a leave.
KASan warning:
==================================================================
BUG: KASAN: slab-out-of-bounds in keyring_compare_object+0x213/0x240 at addr ffff880060a6f838
Read of size 8 by task keyctl/1655
=============================================================================
BUG kmalloc-192 (Not tainted): kasan: bad access detected
-----------------------------------------------------------------------------
Disabling lock debugging due to kernel taint
INFO: Allocated in assoc_array_insert+0xfd0/0x3a60 age=69 cpu=1 pid=1647
___slab_alloc+0x563/0x5c0
__slab_alloc+0x51/0x90
kmem_cache_alloc_trace+0x263/0x300
assoc_array_insert+0xfd0/0x3a60
__key_link_begin+0xfc/0x270
key_create_or_update+0x459/0xaf0
SyS_add_key+0x1ba/0x350
entry_SYSCALL_64_fastpath+0x12/0x76
INFO: Slab 0xffffea0001829b80 objects=16 used=8 fp=0xffff880060a6f550 flags=0x3fff8000004080
INFO: Object 0xffff880060a6f740 @offset=5952 fp=0xffff880060a6e5d1
Bytes b4 ffff880060a6f730: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f740: d1 e5 a6 60 00 88 ff ff 0e 00 00 00 00 00 00 00 ...`............
Object ffff880060a6f750: 02 cf 8e 60 00 88 ff ff 02 c0 8e 60 00 88 ff ff ...`.......`....
Object ffff880060a6f760: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f770: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f790: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7d0: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Object ffff880060a6f7f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
CPU: 0 PID: 1655 Comm: keyctl Tainted: G B 4.5.0-rc4-kasan+ #291
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
0000000000000000 000000001b2800b4 ffff880060a179e0 ffffffff81b60491
ffff88006c802900 ffff880060a6f740 ffff880060a17a10 ffffffff815e2969
ffff88006c802900 ffffea0001829b80 ffff880060a6f740 ffff880060a6e650
Call Trace:
[<ffffffff81b60491>] dump_stack+0x85/0xc4
[<ffffffff815e2969>] print_trailer+0xf9/0x150
[<ffffffff815e9454>] object_err+0x34/0x40
[<ffffffff815ebe50>] kasan_report_error+0x230/0x550
[<ffffffff819949be>] ? keyring_get_key_chunk+0x13e/0x210
[<ffffffff815ec62d>] __asan_report_load_n_noabort+0x5d/0x70
[<ffffffff81994cc3>] ? keyring_compare_object+0x213/0x240
[<ffffffff81994cc3>] keyring_compare_object+0x213/0x240
[<ffffffff81bc238c>] assoc_array_insert+0x86c/0x3a60
[<ffffffff81bc1b20>] ? assoc_array_cancel_edit+0x70/0x70
[<ffffffff8199797d>] ? __key_link_begin+0x20d/0x270
[<ffffffff8199786c>] __key_link_begin+0xfc/0x270
[<ffffffff81993389>] key_create_or_update+0x459/0xaf0
[<ffffffff8128ce0d>] ? trace_hardirqs_on+0xd/0x10
[<ffffffff81992f30>] ? key_type_lookup+0xc0/0xc0
[<ffffffff8199e19d>] ? lookup_user_key+0x13d/0xcd0
[<ffffffff81534763>] ? memdup_user+0x53/0x80
[<ffffffff819983ea>] SyS_add_key+0x1ba/0x350
[<ffffffff81998230>] ? key_get_type_from_user.constprop.6+0xa0/0xa0
[<ffffffff828bcf4e>] ? retint_user+0x18/0x23
[<ffffffff8128cc7e>] ? trace_hardirqs_on_caller+0x3fe/0x580
[<ffffffff81004017>] ? trace_hardirqs_on_thunk+0x17/0x19
[<ffffffff828bc432>] entry_SYSCALL_64_fastpath+0x12/0x76
Memory state around the buggy address:
ffff880060a6f700: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
ffff880060a6f780: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc
>ffff880060a6f800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff880060a6f880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff880060a6f900: fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00
==================================================================
Signed-off-by: Jerome Marchand <[email protected]>
Signed-off-by: David Howells <[email protected]>
cc: [email protected] | 8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | assoc_array_insert_into_terminal_node | assoc_array_insert_into_terminal_node( struct assoc_array_edit * edit , const struct assoc_array_ops * ops , const void * index_key , struct assoc_array_walk_result * result) | ['edit', 'ops', 'index_key', 'result'] | static bool assoc_array_insert_into_terminal_node(struct assoc_array_edit *edit,
const struct assoc_array_ops *ops,
const void *index_key,
struct assoc_array_walk_result *result)
{
struct assoc_array_shortcut *shortcut, *new_s0;
struct assoc_array_node *node, *new_n0, *new_n1, *side;
struct assoc_array_ptr *ptr;
unsigned long dissimilarity, base_seg, blank;
size_t keylen;
bool have_meta;
int level, diff;
int slot, next_slot, free_slot, i, j;
node = result->terminal_node.node;
level = result->terminal_node.level;
edit->segment_cache[ASSOC_ARRAY_FAN_OUT] = result->terminal_node.slot;
pr_devel("-->%s()\n", __func__);
/* We arrived at a node which doesn't have an onward node or shortcut
* pointer that we have to follow. This means that (a) the leaf we
* want must go here (either by insertion or replacement) or (b) we
* need to split this node and insert in one of the fragments.
*/
free_slot = -1;
/* Firstly, we have to check the leaves in this node to see if there's
* a matching one we should replace in place.
*/
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
ptr = node->slots[i];
if (!ptr) {
free_slot = i;
continue;
}
if (ops->compare_object(assoc_array_ptr_to_leaf(ptr), index_key)) {
pr_devel("replace in slot %d\n", i);
edit->leaf_p = &node->slots[i];
edit->dead_leaf = node->slots[i];
pr_devel("<--%s() = ok [replace]\n", __func__);
return true;
}
}
/* If there is a free slot in this node then we can just insert the
* leaf here.
*/
if (free_slot >= 0) {
pr_devel("insert in free slot %d\n", free_slot);
edit->leaf_p = &node->slots[free_slot];
edit->adjust_count_on = node;
pr_devel("<--%s() = ok [insert]\n", __func__);
return true;
}
/* The node has no spare slots - so we're either going to have to split
* it or insert another node before it.
*
* Whatever, we're going to need at least two new nodes - so allocate
* those now. We may also need a new shortcut, but we deal with that
* when we need it.
*/
new_n0 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
if (!new_n0)
return false;
edit->new_meta[0] = assoc_array_node_to_ptr(new_n0);
new_n1 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
if (!new_n1)
return false;
edit->new_meta[1] = assoc_array_node_to_ptr(new_n1);
/* We need to find out how similar the leaves are. */
pr_devel("no spare slots\n");
have_meta = false;
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
ptr = node->slots[i];
if (assoc_array_ptr_is_meta(ptr)) {
edit->segment_cache[i] = 0xff;
have_meta = true;
continue;
}
base_seg = ops->get_object_key_chunk(
assoc_array_ptr_to_leaf(ptr), level);
base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
edit->segment_cache[i] = base_seg & ASSOC_ARRAY_FAN_MASK;
}
if (have_meta) {
pr_devel("have meta\n");
goto split_node;
}
/* The node contains only leaves */
dissimilarity = 0;
base_seg = edit->segment_cache[0];
for (i = 1; i < ASSOC_ARRAY_FAN_OUT; i++)
dissimilarity |= edit->segment_cache[i] ^ base_seg;
pr_devel("only leaves; dissimilarity=%lx\n", dissimilarity);
if ((dissimilarity & ASSOC_ARRAY_FAN_MASK) == 0) {
/* The old leaves all cluster in the same slot. We will need
* to insert a shortcut if the new node wants to cluster with them.
*/
if ((edit->segment_cache[ASSOC_ARRAY_FAN_OUT] ^ base_seg) == 0)
goto all_leaves_cluster_together;
/* Otherwise we can just insert a new node ahead of the old
* one.
*/
goto present_leaves_cluster_but_not_new_leaf;
}
split_node:
pr_devel("split node\n");
/* We need to split the current node; we know that the node doesn't
* simply contain a full set of leaves that cluster together (it
* contains meta pointers and/or non-clustering leaves).
*
* We need to expel at least two leaves out of a set consisting of the
* leaves in the node and the new leaf.
*
* We need a new node (n0) to replace the current one and a new node to
* take the expelled nodes (n1).
*/
edit->set[0].to = assoc_array_node_to_ptr(new_n0);
new_n0->back_pointer = node->back_pointer;
new_n0->parent_slot = node->parent_slot;
new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
new_n1->parent_slot = -1; /* Need to calculate this */
do_split_node:
pr_devel("do_split_node\n");
new_n0->nr_leaves_on_branch = node->nr_leaves_on_branch;
new_n1->nr_leaves_on_branch = 0;
/* Begin by finding two matching leaves. There have to be at least two
* that match - even if there are meta pointers - because any leaf that
* would match a slot with a meta pointer in it must be somewhere
* behind that meta pointer and cannot be here. Further, given N
* remaining leaf slots, we now have N+1 leaves to go in them.
*/
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
slot = edit->segment_cache[i];
if (slot != 0xff)
for (j = i + 1; j < ASSOC_ARRAY_FAN_OUT + 1; j++)
if (edit->segment_cache[j] == slot)
goto found_slot_for_multiple_occupancy;
}
found_slot_for_multiple_occupancy:
pr_devel("same slot: %x %x [%02x]\n", i, j, slot);
BUG_ON(i >= ASSOC_ARRAY_FAN_OUT);
BUG_ON(j >= ASSOC_ARRAY_FAN_OUT + 1);
BUG_ON(slot >= ASSOC_ARRAY_FAN_OUT);
new_n1->parent_slot = slot;
/* Metadata pointers cannot change slot */
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++)
if (assoc_array_ptr_is_meta(node->slots[i]))
new_n0->slots[i] = node->slots[i];
else
new_n0->slots[i] = NULL;
BUG_ON(new_n0->slots[slot] != NULL);
new_n0->slots[slot] = assoc_array_node_to_ptr(new_n1);
/* Filter the leaf pointers between the new nodes */
free_slot = -1;
next_slot = 0;
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
if (assoc_array_ptr_is_meta(node->slots[i]))
continue;
if (edit->segment_cache[i] == slot) {
new_n1->slots[next_slot++] = node->slots[i];
new_n1->nr_leaves_on_branch++;
} else {
do {
free_slot++;
} while (new_n0->slots[free_slot] != NULL);
new_n0->slots[free_slot] = node->slots[i];
}
}
pr_devel("filtered: f=%x n=%x\n", free_slot, next_slot);
if (edit->segment_cache[ASSOC_ARRAY_FAN_OUT] != slot) {
do {
free_slot++;
} while (new_n0->slots[free_slot] != NULL);
edit->leaf_p = &new_n0->slots[free_slot];
edit->adjust_count_on = new_n0;
} else {
edit->leaf_p = &new_n1->slots[next_slot++];
edit->adjust_count_on = new_n1;
}
BUG_ON(next_slot <= 1);
edit->set_backpointers_to = assoc_array_node_to_ptr(new_n0);
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
if (edit->segment_cache[i] == 0xff) {
ptr = node->slots[i];
BUG_ON(assoc_array_ptr_is_leaf(ptr));
if (assoc_array_ptr_is_node(ptr)) {
side = assoc_array_ptr_to_node(ptr);
edit->set_backpointers[i] = &side->back_pointer;
} else {
shortcut = assoc_array_ptr_to_shortcut(ptr);
edit->set_backpointers[i] = &shortcut->back_pointer;
}
}
}
ptr = node->back_pointer;
if (!ptr)
edit->set[0].ptr = &edit->array->root;
else if (assoc_array_ptr_is_node(ptr))
edit->set[0].ptr = &assoc_array_ptr_to_node(ptr)->slots[node->parent_slot];
else
edit->set[0].ptr = &assoc_array_ptr_to_shortcut(ptr)->next_node;
edit->excised_meta[0] = assoc_array_node_to_ptr(node);
pr_devel("<--%s() = ok [split node]\n", __func__);
return true;
present_leaves_cluster_but_not_new_leaf:
/* All the old leaves cluster in the same slot, but the new leaf wants
* to go into a different slot, so we create a new node to hold the new
* leaf and a pointer to a new node holding all the old leaves.
*/
pr_devel("present leaves cluster but not new leaf\n");
new_n0->back_pointer = node->back_pointer;
new_n0->parent_slot = node->parent_slot;
new_n0->nr_leaves_on_branch = node->nr_leaves_on_branch;
new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
new_n1->parent_slot = edit->segment_cache[0];
new_n1->nr_leaves_on_branch = node->nr_leaves_on_branch;
edit->adjust_count_on = new_n0;
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++)
new_n1->slots[i] = node->slots[i];
new_n0->slots[edit->segment_cache[0]] = assoc_array_node_to_ptr(new_n0);
edit->leaf_p = &new_n0->slots[edit->segment_cache[ASSOC_ARRAY_FAN_OUT]];
edit->set[0].ptr = &assoc_array_ptr_to_node(node->back_pointer)->slots[node->parent_slot];
edit->set[0].to = assoc_array_node_to_ptr(new_n0);
edit->excised_meta[0] = assoc_array_node_to_ptr(node);
pr_devel("<--%s() = ok [insert node before]\n", __func__);
return true;
all_leaves_cluster_together:
/* All the leaves, new and old, want to cluster together in this node
* in the same slot, so we have to replace this node with a shortcut to
* skip over the identical parts of the key and then place a pair of
* nodes, one inside the other, at the end of the shortcut and
* distribute the keys between them.
*
* Firstly we need to work out where the leaves start diverging as a
* bit position into their keys so that we know how big the shortcut
* needs to be.
*
* We only need to make a single pass of N of the N+1 leaves because if
* any keys differ between themselves at bit X then at least one of
* them must also differ with the base key at bit X or before.
*/
pr_devel("all leaves cluster together\n");
diff = INT_MAX;
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
int x = ops->diff_objects(assoc_array_ptr_to_leaf(node->slots[i]),
index_key);
if (x < diff) {
BUG_ON(x < 0);
diff = x;
}
}
BUG_ON(diff == INT_MAX);
BUG_ON(diff < level + ASSOC_ARRAY_LEVEL_STEP);
keylen = round_up(diff, ASSOC_ARRAY_KEY_CHUNK_SIZE);
keylen >>= ASSOC_ARRAY_KEY_CHUNK_SHIFT;
new_s0 = kzalloc(sizeof(struct assoc_array_shortcut) +
keylen * sizeof(unsigned long), GFP_KERNEL);
if (!new_s0)
return false;
edit->new_meta[2] = assoc_array_shortcut_to_ptr(new_s0);
edit->set[0].to = assoc_array_shortcut_to_ptr(new_s0);
new_s0->back_pointer = node->back_pointer;
new_s0->parent_slot = node->parent_slot;
new_s0->next_node = assoc_array_node_to_ptr(new_n0);
new_n0->back_pointer = assoc_array_shortcut_to_ptr(new_s0);
new_n0->parent_slot = 0;
new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
new_n1->parent_slot = -1; /* Need to calculate this */
new_s0->skip_to_level = level = diff & ~ASSOC_ARRAY_LEVEL_STEP_MASK;
pr_devel("skip_to_level = %d [diff %d]\n", level, diff);
BUG_ON(level <= 0);
for (i = 0; i < keylen; i++)
new_s0->index_key[i] =
ops->get_key_chunk(index_key, i * ASSOC_ARRAY_KEY_CHUNK_SIZE);
blank = ULONG_MAX << (level & ASSOC_ARRAY_KEY_CHUNK_MASK);
pr_devel("blank off [%zu] %d: %lx\n", keylen - 1, level, blank);
new_s0->index_key[keylen - 1] &= ~blank;
/* This now reduces to a node splitting exercise for which we'll need
* to regenerate the disparity table.
*/
for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
ptr = node->slots[i];
base_seg = ops->get_object_key_chunk(assoc_array_ptr_to_leaf(ptr),
level);
base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
edit->segment_cache[i] = base_seg & ASSOC_ARRAY_FAN_MASK;
}
base_seg = ops->get_key_chunk(index_key, level);
base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
edit->segment_cache[ASSOC_ARRAY_FAN_OUT] = base_seg & ASSOC_ARRAY_FAN_MASK;
goto do_split_node;
} | 1717 | True | 1 |
|
CVE-2016-4997 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html', 'name': 'SUSE-SU-2016:1710', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html', 'name': 'SUSE-SU-2016:1709', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/09/29/10', 'name': '[oss-security] 20160929 CVE request - Linux kernel through 4.6.2 allows escalade privileges via IP6T_SO_SET_REPLACE compat setsockopt call', 'refsource': 'MLIST', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'name': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html', 'name': 'SUSE-SU-2016:2181', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html', 'name': 'SUSE-SU-2016:2179', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html', 'name': 'SUSE-SU-2016:2178', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html', 'name': 'SUSE-SU-2016:2180', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html', 'name': 'SUSE-SU-2016:2174', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html', 'name': 'SUSE-SU-2016:2177', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40489/', 'name': '40489', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40435/', 'name': '40435', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Florian Westphal | 2016-04-01 14:17:28+02:00 | netfilter: x_tables: check for bogus target offset
We're currently asserting that targetoff + targetsize <= nextoff.
Extend it to also check that targetoff is >= sizeof(xt_entry).
Since this is generic code, add an argument pointing to the start of the
match/target, we can then derive the base structure size from the delta.
We also need the e->elems pointer in a followup change to validate matches.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | ce683e5f9d045e5d67d1312a42b359cb2ab2a13c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_compat_entry_size_and_hooks | check_compat_entry_size_and_hooks( struct compat_arpt_entry * e , struct xt_table_info * newinfo , unsigned int * size , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , const char * name) | ['e', 'newinfo', 'size', 'base', 'limit', 'hook_entries', 'underflows', 'name'] | check_compat_entry_size_and_hooks(struct compat_arpt_entry *e,
struct xt_table_info *newinfo,
unsigned int *size,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
const char *name)
{
struct xt_entry_target *t;
struct xt_target *target;
unsigned int entry_offset;
int ret, off, h;
duprintf("check_compat_entry_size_and_hooks %p\n", e);
if ((unsigned long)e % __alignof__(struct compat_arpt_entry) != 0 ||
(unsigned char *)e + sizeof(struct compat_arpt_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p, limit = %p\n", e, limit);
return -EINVAL;
}
if (e->next_offset < sizeof(struct compat_arpt_entry) +
sizeof(struct compat_xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
if (!arp_checkentry(&e->arp))
return -EINVAL;
ret = xt_compat_check_entry_offsets(e, e->target_offset,
e->next_offset);
if (ret)
return ret;
off = sizeof(struct arpt_entry) - sizeof(struct compat_arpt_entry);
entry_offset = (void *)e - (void *)base;
t = compat_arpt_get_target(e);
target = xt_request_find_target(NFPROTO_ARP, t->u.user.name,
t->u.user.revision);
if (IS_ERR(target)) {
duprintf("check_compat_entry_size_and_hooks: `%s' not found\n",
t->u.user.name);
ret = PTR_ERR(target);
goto out;
}
t->u.kernel.target = target;
off += xt_compat_target_offset(target);
*size += off;
ret = xt_compat_add_offset(NFPROTO_ARP, entry_offset, off);
if (ret)
goto release_target;
/* Check hooks & underflows */
for (h = 0; h < NF_ARP_NUMHOOKS; h++) {
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
newinfo->underflow[h] = underflows[h];
}
/* Clear counters and comefrom */
memset(&e->counters, 0, sizeof(e->counters));
e->comefrom = 0;
return 0;
release_target:
module_put(t->u.kernel.target->me);
out:
return ret;
} | 454 | True | 1 |
||
CVE-2016-4997 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html', 'name': 'SUSE-SU-2016:1710', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html', 'name': 'SUSE-SU-2016:1709', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/09/29/10', 'name': '[oss-security] 20160929 CVE request - Linux kernel through 4.6.2 allows escalade privileges via IP6T_SO_SET_REPLACE compat setsockopt call', 'refsource': 'MLIST', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'name': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html', 'name': 'SUSE-SU-2016:2181', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html', 'name': 'SUSE-SU-2016:2179', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html', 'name': 'SUSE-SU-2016:2178', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html', 'name': 'SUSE-SU-2016:2180', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html', 'name': 'SUSE-SU-2016:2174', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html', 'name': 'SUSE-SU-2016:2177', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40489/', 'name': '40489', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40435/', 'name': '40435', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Florian Westphal | 2016-04-01 14:17:28+02:00 | netfilter: x_tables: check for bogus target offset
We're currently asserting that targetoff + targetsize <= nextoff.
Extend it to also check that targetoff is >= sizeof(xt_entry).
Since this is generic code, add an argument pointing to the start of the
match/target, we can then derive the base structure size from the delta.
We also need the e->elems pointer in a followup change to validate matches.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | ce683e5f9d045e5d67d1312a42b359cb2ab2a13c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct arpt_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | static inline int check_entry_size_and_hooks(struct arpt_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct arpt_entry) != 0 ||
(unsigned char *)e + sizeof(struct arpt_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct arpt_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
if (!arp_checkentry(&e->arp))
return -EINVAL;
err = xt_check_entry_offsets(e, e->target_offset, e->next_offset);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_ARP_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_debug("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 313 | True | 1 |
||
CVE-2016-4997 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html', 'name': 'SUSE-SU-2016:1710', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html', 'name': 'SUSE-SU-2016:1709', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/09/29/10', 'name': '[oss-security] 20160929 CVE request - Linux kernel through 4.6.2 allows escalade privileges via IP6T_SO_SET_REPLACE compat setsockopt call', 'refsource': 'MLIST', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'name': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html', 'name': 'SUSE-SU-2016:2181', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html', 'name': 'SUSE-SU-2016:2179', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html', 'name': 'SUSE-SU-2016:2178', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html', 'name': 'SUSE-SU-2016:2180', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html', 'name': 'SUSE-SU-2016:2174', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html', 'name': 'SUSE-SU-2016:2177', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40489/', 'name': '40489', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40435/', 'name': '40435', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Florian Westphal | 2016-04-01 14:17:28+02:00 | netfilter: x_tables: check for bogus target offset
We're currently asserting that targetoff + targetsize <= nextoff.
Extend it to also check that targetoff is >= sizeof(xt_entry).
Since this is generic code, add an argument pointing to the start of the
match/target, we can then derive the base structure size from the delta.
We also need the e->elems pointer in a followup change to validate matches.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | ce683e5f9d045e5d67d1312a42b359cb2ab2a13c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_compat_entry_size_and_hooks | check_compat_entry_size_and_hooks( struct compat_ipt_entry * e , struct xt_table_info * newinfo , unsigned int * size , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , const char * name) | ['e', 'newinfo', 'size', 'base', 'limit', 'hook_entries', 'underflows', 'name'] | check_compat_entry_size_and_hooks(struct compat_ipt_entry *e,
struct xt_table_info *newinfo,
unsigned int *size,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
const char *name)
{
struct xt_entry_match *ematch;
struct xt_entry_target *t;
struct xt_target *target;
unsigned int entry_offset;
unsigned int j;
int ret, off, h;
duprintf("check_compat_entry_size_and_hooks %p\n", e);
if ((unsigned long)e % __alignof__(struct compat_ipt_entry) != 0 ||
(unsigned char *)e + sizeof(struct compat_ipt_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p, limit = %p\n", e, limit);
return -EINVAL;
}
if (e->next_offset < sizeof(struct compat_ipt_entry) +
sizeof(struct compat_xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
if (!ip_checkentry(&e->ip))
return -EINVAL;
ret = xt_compat_check_entry_offsets(e,
e->target_offset, e->next_offset);
if (ret)
return ret;
off = sizeof(struct ipt_entry) - sizeof(struct compat_ipt_entry);
entry_offset = (void *)e - (void *)base;
j = 0;
xt_ematch_foreach(ematch, e) {
ret = compat_find_calc_match(ematch, name, &e->ip, &off);
if (ret != 0)
goto release_matches;
++j;
}
t = compat_ipt_get_target(e);
target = xt_request_find_target(NFPROTO_IPV4, t->u.user.name,
t->u.user.revision);
if (IS_ERR(target)) {
duprintf("check_compat_entry_size_and_hooks: `%s' not found\n",
t->u.user.name);
ret = PTR_ERR(target);
goto release_matches;
}
t->u.kernel.target = target;
off += xt_compat_target_offset(target);
*size += off;
ret = xt_compat_add_offset(AF_INET, entry_offset, off);
if (ret)
goto out;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
newinfo->underflow[h] = underflows[h];
}
/* Clear counters and comefrom */
memset(&e->counters, 0, sizeof(e->counters));
e->comefrom = 0;
return 0;
out:
module_put(t->u.kernel.target->me);
release_matches:
xt_ematch_foreach(ematch, e) {
if (j-- == 0)
break;
module_put(ematch->u.kernel.match->me);
}
return ret;
} | 534 | True | 1 |
||
CVE-2016-4997 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html', 'name': 'SUSE-SU-2016:1710', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html', 'name': 'SUSE-SU-2016:1709', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/09/29/10', 'name': '[oss-security] 20160929 CVE request - Linux kernel through 4.6.2 allows escalade privileges via IP6T_SO_SET_REPLACE compat setsockopt call', 'refsource': 'MLIST', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'name': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html', 'name': 'SUSE-SU-2016:2181', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html', 'name': 'SUSE-SU-2016:2179', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html', 'name': 'SUSE-SU-2016:2178', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html', 'name': 'SUSE-SU-2016:2180', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html', 'name': 'SUSE-SU-2016:2174', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html', 'name': 'SUSE-SU-2016:2177', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40489/', 'name': '40489', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40435/', 'name': '40435', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Florian Westphal | 2016-04-01 14:17:28+02:00 | netfilter: x_tables: check for bogus target offset
We're currently asserting that targetoff + targetsize <= nextoff.
Extend it to also check that targetoff is >= sizeof(xt_entry).
Since this is generic code, add an argument pointing to the start of the
match/target, we can then derive the base structure size from the delta.
We also need the e->elems pointer in a followup change to validate matches.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | ce683e5f9d045e5d67d1312a42b359cb2ab2a13c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct ipt_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | check_entry_size_and_hooks(struct ipt_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct ipt_entry) != 0 ||
(unsigned char *)e + sizeof(struct ipt_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct ipt_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
if (!ip_checkentry(&e->ip))
return -EINVAL;
err = xt_check_entry_offsets(e, e->target_offset, e->next_offset);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_debug("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 313 | True | 1 |
||
CVE-2016-4997 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html', 'name': 'SUSE-SU-2016:1710', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html', 'name': 'SUSE-SU-2016:1709', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/09/29/10', 'name': '[oss-security] 20160929 CVE request - Linux kernel through 4.6.2 allows escalade privileges via IP6T_SO_SET_REPLACE compat setsockopt call', 'refsource': 'MLIST', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'name': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html', 'name': 'SUSE-SU-2016:2181', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html', 'name': 'SUSE-SU-2016:2179', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html', 'name': 'SUSE-SU-2016:2178', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html', 'name': 'SUSE-SU-2016:2180', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html', 'name': 'SUSE-SU-2016:2174', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html', 'name': 'SUSE-SU-2016:2177', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40489/', 'name': '40489', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40435/', 'name': '40435', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Florian Westphal | 2016-04-01 14:17:28+02:00 | netfilter: x_tables: check for bogus target offset
We're currently asserting that targetoff + targetsize <= nextoff.
Extend it to also check that targetoff is >= sizeof(xt_entry).
Since this is generic code, add an argument pointing to the start of the
match/target, we can then derive the base structure size from the delta.
We also need the e->elems pointer in a followup change to validate matches.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | ce683e5f9d045e5d67d1312a42b359cb2ab2a13c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_compat_entry_size_and_hooks | check_compat_entry_size_and_hooks( struct compat_ip6t_entry * e , struct xt_table_info * newinfo , unsigned int * size , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , const char * name) | ['e', 'newinfo', 'size', 'base', 'limit', 'hook_entries', 'underflows', 'name'] | check_compat_entry_size_and_hooks(struct compat_ip6t_entry *e,
struct xt_table_info *newinfo,
unsigned int *size,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
const char *name)
{
struct xt_entry_match *ematch;
struct xt_entry_target *t;
struct xt_target *target;
unsigned int entry_offset;
unsigned int j;
int ret, off, h;
duprintf("check_compat_entry_size_and_hooks %p\n", e);
if ((unsigned long)e % __alignof__(struct compat_ip6t_entry) != 0 ||
(unsigned char *)e + sizeof(struct compat_ip6t_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p, limit = %p\n", e, limit);
return -EINVAL;
}
if (e->next_offset < sizeof(struct compat_ip6t_entry) +
sizeof(struct compat_xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
if (!ip6_checkentry(&e->ipv6))
return -EINVAL;
ret = xt_compat_check_entry_offsets(e,
e->target_offset, e->next_offset);
if (ret)
return ret;
off = sizeof(struct ip6t_entry) - sizeof(struct compat_ip6t_entry);
entry_offset = (void *)e - (void *)base;
j = 0;
xt_ematch_foreach(ematch, e) {
ret = compat_find_calc_match(ematch, name, &e->ipv6, &off);
if (ret != 0)
goto release_matches;
++j;
}
t = compat_ip6t_get_target(e);
target = xt_request_find_target(NFPROTO_IPV6, t->u.user.name,
t->u.user.revision);
if (IS_ERR(target)) {
duprintf("check_compat_entry_size_and_hooks: `%s' not found\n",
t->u.user.name);
ret = PTR_ERR(target);
goto release_matches;
}
t->u.kernel.target = target;
off += xt_compat_target_offset(target);
*size += off;
ret = xt_compat_add_offset(AF_INET6, entry_offset, off);
if (ret)
goto out;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h])
newinfo->underflow[h] = underflows[h];
}
/* Clear counters and comefrom */
memset(&e->counters, 0, sizeof(e->counters));
e->comefrom = 0;
return 0;
out:
module_put(t->u.kernel.target->me);
release_matches:
xt_ematch_foreach(ematch, e) {
if (j-- == 0)
break;
module_put(ematch->u.kernel.match->me);
}
return ret;
} | 534 | True | 1 |
||
CVE-2016-4997 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html', 'name': 'SUSE-SU-2016:1710', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html', 'name': 'SUSE-SU-2016:1709', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/09/29/10', 'name': '[oss-security] 20160929 CVE request - Linux kernel through 4.6.2 allows escalade privileges via IP6T_SO_SET_REPLACE compat setsockopt call', 'refsource': 'MLIST', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'name': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html', 'name': 'SUSE-SU-2016:2181', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html', 'name': 'SUSE-SU-2016:2179', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html', 'name': 'SUSE-SU-2016:2178', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html', 'name': 'SUSE-SU-2016:2180', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html', 'name': 'SUSE-SU-2016:2174', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html', 'name': 'SUSE-SU-2016:2177', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40489/', 'name': '40489', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40435/', 'name': '40435', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Florian Westphal | 2016-04-01 14:17:28+02:00 | netfilter: x_tables: check for bogus target offset
We're currently asserting that targetoff + targetsize <= nextoff.
Extend it to also check that targetoff is >= sizeof(xt_entry).
Since this is generic code, add an argument pointing to the start of the
match/target, we can then derive the base structure size from the delta.
We also need the e->elems pointer in a followup change to validate matches.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | ce683e5f9d045e5d67d1312a42b359cb2ab2a13c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | check_entry_size_and_hooks | check_entry_size_and_hooks( struct ip6t_entry * e , struct xt_table_info * newinfo , const unsigned char * base , const unsigned char * limit , const unsigned int * hook_entries , const unsigned int * underflows , unsigned int valid_hooks) | ['e', 'newinfo', 'base', 'limit', 'hook_entries', 'underflows', 'valid_hooks'] | check_entry_size_and_hooks(struct ip6t_entry *e,
struct xt_table_info *newinfo,
const unsigned char *base,
const unsigned char *limit,
const unsigned int *hook_entries,
const unsigned int *underflows,
unsigned int valid_hooks)
{
unsigned int h;
int err;
if ((unsigned long)e % __alignof__(struct ip6t_entry) != 0 ||
(unsigned char *)e + sizeof(struct ip6t_entry) >= limit ||
(unsigned char *)e + e->next_offset > limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
if (e->next_offset
< sizeof(struct ip6t_entry) + sizeof(struct xt_entry_target)) {
duprintf("checking: element %p size %u\n",
e, e->next_offset);
return -EINVAL;
}
if (!ip6_checkentry(&e->ipv6))
return -EINVAL;
err = xt_check_entry_offsets(e, e->target_offset, e->next_offset);
if (err)
return err;
/* Check hooks & underflows */
for (h = 0; h < NF_INET_NUMHOOKS; h++) {
if (!(valid_hooks & (1 << h)))
continue;
if ((unsigned char *)e - base == hook_entries[h])
newinfo->hook_entry[h] = hook_entries[h];
if ((unsigned char *)e - base == underflows[h]) {
if (!check_underflow(e)) {
pr_debug("Underflows must be unconditional and "
"use the STANDARD target with "
"ACCEPT/DROP\n");
return -EINVAL;
}
newinfo->underflow[h] = underflows[h];
}
}
/* Clear counters and comefrom */
e->counters = ((struct xt_counters) { 0, 0 });
e->comefrom = 0;
return 0;
} | 313 | True | 1 |
||
CVE-2016-4997 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/06/24/5', 'name': '[oss-security] 20160624 Linux CVE-2016-4997 (local privilege escalation) and CVE-2016-4998 (out of bounds memory access)', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'name': 'https://github.com/torvalds/linux/commit/ce683e5f9d045e5d67d1312a42b359cb2ab2a13c', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1349722', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html', 'name': 'SUSE-SU-2016:1710', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html', 'name': 'SUSE-SU-2016:1709', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/09/29/10', 'name': '[oss-security] 20160929 CVE request - Linux kernel through 4.6.2 allows escalade privileges via IP6T_SO_SET_REPLACE compat setsockopt call', 'refsource': 'MLIST', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'name': 'https://github.com/nccgroup/TriforceLinuxSyscallFuzzer/tree/master/crash_reports/report_compatIpt', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html', 'name': 'SUSE-SU-2016:2181', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html', 'name': 'SUSE-SU-2016:2179', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html', 'name': 'SUSE-SU-2016:2178', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036171', 'name': '1036171', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91451', 'name': '91451', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html', 'name': 'SUSE-SU-2016:2180', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html', 'name': 'SUSE-SU-2016:2174', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html', 'name': 'SUSE-SU-2016:2177', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40489/', 'name': '40489', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40435/', 'name': '40435', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1883.html', 'name': 'RHSA-2016:1883', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.'}] | 2019-12-27T16:08Z | 2016-07-03T21:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Florian Westphal | 2016-04-01 14:17:28+02:00 | netfilter: x_tables: check for bogus target offset
We're currently asserting that targetoff + targetsize <= nextoff.
Extend it to also check that targetoff is >= sizeof(xt_entry).
Since this is generic code, add an argument pointing to the start of the
match/target, we can then derive the base structure size from the delta.
We also need the e->elems pointer in a followup change to validate matches.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | ce683e5f9d045e5d67d1312a42b359cb2ab2a13c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | xt_compat_check_entry_offsets | xt_compat_check_entry_offsets( const void * base , unsigned int target_offset , unsigned int next_offset) | ['base', 'target_offset', 'next_offset'] | int xt_compat_check_entry_offsets(const void *base,
unsigned int target_offset,
unsigned int next_offset)
{
const struct compat_xt_entry_target *t;
const char *e = base;
if (target_offset + sizeof(*t) > next_offset)
return -EINVAL;
t = (void *)(e + target_offset);
if (t->u.target_size < sizeof(*t))
return -EINVAL;
if (target_offset + t->u.target_size > next_offset)
return -EINVAL;
if (strcmp(t->u.user.name, XT_STANDARD_TARGET) == 0 &&
target_offset + sizeof(struct compat_xt_standard_target) != next_offset)
return -EINVAL;
return 0;
} | 126 | True | 1 |
||
CVE-2016-9794 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://patchwork.kernel.org/patch/8752621/', 'name': 'https://patchwork.kernel.org/patch/8752621/', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4', 'name': 'https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1401494', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1401494', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/12/03/2', 'name': '[oss-security] 20161203 CVE request: -- Linux kernel: ALSA: use-after-free in,kill_fasync', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/94654', 'name': '94654', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html', 'name': 'SUSE-SU-2016:3252', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html', 'name': 'SUSE-SU-2016:3248', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html', 'name': 'SUSE-SU-2016:3217', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html', 'name': 'SUSE-SU-2016:3203', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html', 'name': 'SUSE-SU-2016:3188', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html', 'name': 'SUSE-SU-2016:3146', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html', 'name': 'openSUSE-SU-2016:3118', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'https://source.android.com/security/bulletin/2017-05-01', 'name': 'https://source.android.com/security/bulletin/2017-05-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}, {'lang': 'en', 'value': 'CWE-416'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.7', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the snd_pcm_period_elapsed function in sound/core/pcm_lib.c in the ALSA subsystem in the Linux kernel before 4.7 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted SNDRV_PCM_TRIGGER_START command.'}] | 2018-01-05T02:31Z | 2016-12-28T07:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Takashi Iwai | 2016-04-14 18:02:37+02:00 | ALSA: pcm : Call kill_fasync() in stream lock
Currently kill_fasync() is called outside the stream lock in
snd_pcm_period_elapsed(). This is potentially racy, since the stream
may get released even during the irq handler is running. Although
snd_pcm_release_substream() calls snd_pcm_drop(), this doesn't
guarantee that the irq handler finishes, thus the kill_fasync() call
outside the stream spin lock may be invoked after the substream is
detached, as recently reported by KASAN.
As a quick workaround, move kill_fasync() call inside the stream
lock. The fasync is rarely used interface, so this shouldn't have a
big impact from the performance POV.
Ideally, we should implement some sync mechanism for the proper finish
of stream and irq handler. But this oneliner should suffice for most
cases, so far.
Reported-by: Baozeng Ding <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | 3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | snd_pcm_period_elapsed | snd_pcm_period_elapsed( struct snd_pcm_substream * substream) | ['substream'] | void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime;
unsigned long flags;
if (PCM_RUNTIME_CHECK(substream))
return;
runtime = substream->runtime;
snd_pcm_stream_lock_irqsave(substream, flags);
if (!snd_pcm_running(substream) ||
snd_pcm_update_hw_ptr0(substream, 1) < 0)
goto _end;
#ifdef CONFIG_SND_PCM_TIMER
if (substream->timer_running)
snd_timer_interrupt(substream->timer, 1);
#endif
_end:
snd_pcm_stream_unlock_irqrestore(substream, flags);
kill_fasync(&runtime->fasync, SIGIO, POLL_IN);
} | 96 | True | 1 |
|
CVE-2016-9794 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://patchwork.kernel.org/patch/8752621/', 'name': 'https://patchwork.kernel.org/patch/8752621/', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4', 'name': 'https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1401494', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1401494', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/12/03/2', 'name': '[oss-security] 20161203 CVE request: -- Linux kernel: ALSA: use-after-free in,kill_fasync', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/94654', 'name': '94654', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00091.html', 'name': 'SUSE-SU-2016:3252', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00088.html', 'name': 'SUSE-SU-2016:3248', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00081.html', 'name': 'SUSE-SU-2016:3217', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00075.html', 'name': 'SUSE-SU-2016:3203', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00072.html', 'name': 'SUSE-SU-2016:3188', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00062.html', 'name': 'SUSE-SU-2016:3146', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00057.html', 'name': 'openSUSE-SU-2016:3118', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'https://source.android.com/security/bulletin/2017-05-01', 'name': 'https://source.android.com/security/bulletin/2017-05-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}, {'lang': 'en', 'value': 'CWE-416'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.7', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the snd_pcm_period_elapsed function in sound/core/pcm_lib.c in the ALSA subsystem in the Linux kernel before 4.7 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted SNDRV_PCM_TRIGGER_START command.'}] | 2018-01-05T02:31Z | 2016-12-28T07:59Z | Use After Free | Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. |
The use of previously-freed memory can have any number of adverse consequences, ranging from the corruption of valid data to the execution of arbitrary code, depending on the instantiation and timing of the flaw. The simplest way data corruption may occur involves the system's reuse of the freed memory. Use-after-free errors have two common and sometimes overlapping causes:
Error conditions and other exceptional circumstances.
Confusion over which part of the program is responsible for freeing the memory.
In this scenario, the memory in question is allocated to another pointer validly at some point after it has been freed. The original pointer to the freed memory is used again and points to somewhere within the new allocation. As the data is changed, it corrupts the validly used memory; this induces undefined behavior in the process.
If the newly allocated data chances to hold a class, in C++ for example, various function pointers may be scattered within the heap data. If one of these function pointers is overwritten with an address to valid shellcode, execution of arbitrary code can be achieved.
| https://cwe.mitre.org/data/definitions/416.html | 0 | Takashi Iwai | 2016-04-14 18:02:37+02:00 | ALSA: pcm : Call kill_fasync() in stream lock
Currently kill_fasync() is called outside the stream lock in
snd_pcm_period_elapsed(). This is potentially racy, since the stream
may get released even during the irq handler is running. Although
snd_pcm_release_substream() calls snd_pcm_drop(), this doesn't
guarantee that the irq handler finishes, thus the kill_fasync() call
outside the stream spin lock may be invoked after the substream is
detached, as recently reported by KASAN.
As a quick workaround, move kill_fasync() call inside the stream
lock. The fasync is rarely used interface, so this shouldn't have a
big impact from the performance POV.
Ideally, we should implement some sync mechanism for the proper finish
of stream and irq handler. But this oneliner should suffice for most
cases, so far.
Reported-by: Baozeng Ding <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | 3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | snd_pcm_period_elapsed | snd_pcm_period_elapsed( struct snd_pcm_substream * substream) | ['substream'] | void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime;
unsigned long flags;
if (PCM_RUNTIME_CHECK(substream))
return;
runtime = substream->runtime;
snd_pcm_stream_lock_irqsave(substream, flags);
if (!snd_pcm_running(substream) ||
snd_pcm_update_hw_ptr0(substream, 1) < 0)
goto _end;
#ifdef CONFIG_SND_PCM_TIMER
if (substream->timer_running)
snd_timer_interrupt(substream->timer, 1);
#endif
_end:
snd_pcm_stream_unlock_irqrestore(substream, flags);
kill_fasync(&runtime->fasync, SIGIO, POLL_IN);
} | 96 | True | 1 |
|
CVE-2016-7912 | False | False | False | True | AV:N/AC:M/Au:N/C:C/I:C/A:C | NETWORK | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 9.3 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | LOCAL | LOW | NONE | REQUIRED | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38740a5b87d53ceb89eb2c970150f6e94e00373a', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38740a5b87d53ceb89eb2c970150f6e94e00373a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/38740a5b87d53ceb89eb2c970150f6e94e00373a', 'name': 'https://github.com/torvalds/linux/commit/38740a5b87d53ceb89eb2c970150f6e94e00373a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://source.android.com/security/bulletin/2016-11-01.html', 'name': 'http://source.android.com/security/bulletin/2016-11-01.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/94197', 'name': '94197', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-416'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Use-after-free vulnerability in the ffs_user_copy_worker function in drivers/usb/gadget/function/f_fs.c in the Linux kernel before 4.5.3 allows local users to gain privileges by accessing an I/O data structure after a certain callback call.'}] | 2016-11-28T20:39Z | 2016-11-16T05:59Z | Use After Free | Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. |
The use of previously-freed memory can have any number of adverse consequences, ranging from the corruption of valid data to the execution of arbitrary code, depending on the instantiation and timing of the flaw. The simplest way data corruption may occur involves the system's reuse of the freed memory. Use-after-free errors have two common and sometimes overlapping causes:
Error conditions and other exceptional circumstances.
Confusion over which part of the program is responsible for freeing the memory.
In this scenario, the memory in question is allocated to another pointer validly at some point after it has been freed. The original pointer to the freed memory is used again and points to somewhere within the new allocation. As the data is changed, it corrupts the validly used memory; this induces undefined behavior in the process.
If the newly allocated data chances to hold a class, in C++ for example, various function pointers may be scattered within the heap data. If one of these function pointers is overwritten with an address to valid shellcode, execution of arbitrary code can be achieved.
| https://cwe.mitre.org/data/definitions/416.html | 0 | Lars-Peter Clausen | 2016-04-14 17:01:17+02:00 | usb: gadget: f_fs: Fix use-after-free
When using asynchronous read or write operations on the USB endpoints the
issuer of the IO request is notified by calling the ki_complete() callback
of the submitted kiocb when the URB has been completed.
Calling this ki_complete() callback will free kiocb. Make sure that the
structure is no longer accessed beyond that point, otherwise undefined
behaviour might occur.
Fixes: 2e4c7553cd6f ("usb: gadget: f_fs: add aio support")
Cc: <[email protected]> # v3.15+
Signed-off-by: Lars-Peter Clausen <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]> | 38740a5b87d53ceb89eb2c970150f6e94e00373a | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ffs_user_copy_worker | ffs_user_copy_worker( struct work_struct * work) | ['work'] | static void ffs_user_copy_worker(struct work_struct *work)
{
struct ffs_io_data *io_data = container_of(work, struct ffs_io_data,
work);
int ret = io_data->req->status ? io_data->req->status :
io_data->req->actual;
if (io_data->read && ret > 0) {
use_mm(io_data->mm);
ret = copy_to_iter(io_data->buf, ret, &io_data->data);
if (iov_iter_count(&io_data->data))
ret = -EFAULT;
unuse_mm(io_data->mm);
}
io_data->kiocb->ki_complete(io_data->kiocb, ret, ret);
if (io_data->ffs->ffs_eventfd &&
!(io_data->kiocb->ki_flags & IOCB_EVENTFD))
eventfd_signal(io_data->ffs->ffs_eventfd, 1);
usb_ep_free_request(io_data->ep, io_data->req);
io_data->kiocb->private = NULL;
if (io_data->read)
kfree(io_data->to_free);
kfree(io_data->buf);
kfree(io_data);
} | 191 | True | 1 |
|
CVE-2017-18174 | False | False | False | False | AV:N/AC:L/Au:N/C:P/I:P/A:P | NETWORK | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NETWORK | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 9.8 | CRITICAL | 3.9 | 5.9 | True | [{'url': 'https://github.com/torvalds/linux/commit/8dca4a41f1ad65043a78c2338d9725f859c8d2c3', 'name': 'https://github.com/torvalds/linux/commit/8dca4a41f1ad65043a78c2338d9725f859c8d2c3', 'refsource': 'MISC', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/251e22abde21833b3d29577e4d8c7aaccd650eee', 'name': 'https://github.com/torvalds/linux/commit/251e22abde21833b3d29577e4d8c7aaccd650eee', 'refsource': 'MISC', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8dca4a41f1ad65043a78c2338d9725f859c8d2c3', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8dca4a41f1ad65043a78c2338d9725f859c8d2c3', 'refsource': 'MISC', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=251e22abde21833b3d29577e4d8c7aaccd650eee', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=251e22abde21833b3d29577e4d8c7aaccd650eee', 'refsource': 'MISC', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://usn.ubuntu.com/3848-2/', 'name': 'USN-3848-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://usn.ubuntu.com/3848-1/', 'name': 'USN-3848-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-415'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '4.7', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'In the Linux kernel before 4.7, the amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free.'}] | 2018-12-21T11:29Z | 2018-02-11T18:29Z | Double Free | The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. | When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.
| https://cwe.mitre.org/data/definitions/415.html | 0 | Laxman Dewangan | 2016-02-24 14:32:07+05:18 | pinctrl: amd: Use devm_pinctrl_register() for pinctrl registration
Use devm_pinctrl_register() for pin control registration and clean
error path.
Signed-off-by: Laxman Dewangan <[email protected]>
Signed-off-by: Linus Walleij <[email protected]> | 251e22abde21833b3d29577e4d8c7aaccd650eee | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | amd_gpio_probe | amd_gpio_probe( struct platform_device * pdev) | ['pdev'] | static int amd_gpio_probe(struct platform_device *pdev)
{
int ret = 0;
int irq_base;
struct resource *res;
struct amd_gpio *gpio_dev;
gpio_dev = devm_kzalloc(&pdev->dev,
sizeof(struct amd_gpio), GFP_KERNEL);
if (!gpio_dev)
return -ENOMEM;
spin_lock_init(&gpio_dev->lock);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "Failed to get gpio io resource.\n");
return -EINVAL;
}
gpio_dev->base = devm_ioremap_nocache(&pdev->dev, res->start,
resource_size(res));
if (!gpio_dev->base)
return -ENOMEM;
irq_base = platform_get_irq(pdev, 0);
if (irq_base < 0) {
dev_err(&pdev->dev, "Failed to get gpio IRQ.\n");
return -EINVAL;
}
gpio_dev->pdev = pdev;
gpio_dev->gc.direction_input = amd_gpio_direction_input;
gpio_dev->gc.direction_output = amd_gpio_direction_output;
gpio_dev->gc.get = amd_gpio_get_value;
gpio_dev->gc.set = amd_gpio_set_value;
gpio_dev->gc.set_debounce = amd_gpio_set_debounce;
gpio_dev->gc.dbg_show = amd_gpio_dbg_show;
gpio_dev->gc.base = 0;
gpio_dev->gc.label = pdev->name;
gpio_dev->gc.owner = THIS_MODULE;
gpio_dev->gc.parent = &pdev->dev;
gpio_dev->gc.ngpio = TOTAL_NUMBER_OF_PINS;
#if defined(CONFIG_OF_GPIO)
gpio_dev->gc.of_node = pdev->dev.of_node;
#endif
gpio_dev->groups = kerncz_groups;
gpio_dev->ngroups = ARRAY_SIZE(kerncz_groups);
amd_pinctrl_desc.name = dev_name(&pdev->dev);
gpio_dev->pctrl = pinctrl_register(&amd_pinctrl_desc,
&pdev->dev, gpio_dev);
if (IS_ERR(gpio_dev->pctrl)) {
dev_err(&pdev->dev, "Couldn't register pinctrl driver\n");
return PTR_ERR(gpio_dev->pctrl);
}
ret = gpiochip_add_data(&gpio_dev->gc, gpio_dev);
if (ret)
goto out1;
ret = gpiochip_add_pin_range(&gpio_dev->gc, dev_name(&pdev->dev),
0, 0, TOTAL_NUMBER_OF_PINS);
if (ret) {
dev_err(&pdev->dev, "Failed to add pin range\n");
goto out2;
}
ret = gpiochip_irqchip_add(&gpio_dev->gc,
&amd_gpio_irqchip,
0,
handle_simple_irq,
IRQ_TYPE_NONE);
if (ret) {
dev_err(&pdev->dev, "could not add irqchip\n");
ret = -ENODEV;
goto out2;
}
gpiochip_set_chained_irqchip(&gpio_dev->gc,
&amd_gpio_irqchip,
irq_base,
amd_gpio_irq_handler);
platform_set_drvdata(pdev, gpio_dev);
dev_dbg(&pdev->dev, "amd gpio driver loaded\n");
return ret;
out2:
gpiochip_remove(&gpio_dev->gc);
out1:
pinctrl_unregister(gpio_dev->pctrl);
return ret;
} | 503 | True | 1 |
|
CVE-2017-18174 | False | False | False | False | AV:N/AC:L/Au:N/C:P/I:P/A:P | NETWORK | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NETWORK | LOW | NONE | NONE | UNCHANGED | HIGH | HIGH | HIGH | 9.8 | CRITICAL | 3.9 | 5.9 | True | [{'url': 'https://github.com/torvalds/linux/commit/8dca4a41f1ad65043a78c2338d9725f859c8d2c3', 'name': 'https://github.com/torvalds/linux/commit/8dca4a41f1ad65043a78c2338d9725f859c8d2c3', 'refsource': 'MISC', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/251e22abde21833b3d29577e4d8c7aaccd650eee', 'name': 'https://github.com/torvalds/linux/commit/251e22abde21833b3d29577e4d8c7aaccd650eee', 'refsource': 'MISC', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8dca4a41f1ad65043a78c2338d9725f859c8d2c3', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8dca4a41f1ad65043a78c2338d9725f859c8d2c3', 'refsource': 'MISC', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=251e22abde21833b3d29577e4d8c7aaccd650eee', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=251e22abde21833b3d29577e4d8c7aaccd650eee', 'refsource': 'MISC', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://usn.ubuntu.com/3848-2/', 'name': 'USN-3848-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://usn.ubuntu.com/3848-1/', 'name': 'USN-3848-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-415'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '4.7', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'In the Linux kernel before 4.7, the amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free.'}] | 2018-12-21T11:29Z | 2018-02-11T18:29Z | Double Free | The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. | When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.
| https://cwe.mitre.org/data/definitions/415.html | 0 | Laxman Dewangan | 2016-02-24 14:32:07+05:18 | pinctrl: amd: Use devm_pinctrl_register() for pinctrl registration
Use devm_pinctrl_register() for pin control registration and clean
error path.
Signed-off-by: Laxman Dewangan <[email protected]>
Signed-off-by: Linus Walleij <[email protected]> | 251e22abde21833b3d29577e4d8c7aaccd650eee | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | amd_gpio_remove | amd_gpio_remove( struct platform_device * pdev) | ['pdev'] | static int amd_gpio_remove(struct platform_device *pdev)
{
struct amd_gpio *gpio_dev;
gpio_dev = platform_get_drvdata(pdev);
gpiochip_remove(&gpio_dev->gc);
pinctrl_unregister(gpio_dev->pctrl);
return 0;
} | 39 | True | 1 |
|
CVE-2016-2117 | False | False | False | False | AV:N/AC:L/Au:N/C:P/I:N/A:N | NETWORK | LOW | NONE | PARTIAL | NONE | NONE | 5.0 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | NETWORK | LOW | NONE | NONE | UNCHANGED | HIGH | NONE | NONE | 7.5 | HIGH | 3.9 | 3.6 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1312298', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1312298', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43bfaeddc79effbf3d0fcb53ca477cca66f3db8', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43bfaeddc79effbf3d0fcb53ca477cca66f3db8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/03/16/7', 'name': '[oss-security] 20160316 CVE-2016-2117 memory disclosure to ethernet due to unchecked scatter/gather IO', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/f43bfaeddc79effbf3d0fcb53ca477cca66f3db8', 'name': 'https://github.com/torvalds/linux/commit/f43bfaeddc79effbf3d0fcb53ca477cca66f3db8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3000-1', 'name': 'USN-3000-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2998-1', 'name': 'USN-2998-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3002-1', 'name': 'USN-3002-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3003-1', 'name': 'USN-3003-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3001-1', 'name': 'USN-3001-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3004-1', 'name': 'USN-3004-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2989-1', 'name': 'USN-2989-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/84500', 'name': '84500', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2584.html', 'name': 'RHSA-2016:2584', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel through 4.5.2 incorrectly enables scatter/gather I/O, which allows remote attackers to obtain sensitive information from kernel memory by reading packet data.'}] | 2018-01-05T02:30Z | 2016-05-02T10:59Z | Exposure of Sensitive Information to an Unauthorized Actor | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:
private, personal information, such as personal messages, financial data, health records, geographic location, or contact details
system status and environment, such as the operating system and installed packages
business secrets and intellectual property
network status and configuration
the product's own code or internal state
metadata, e.g. logging of connections or message headers
indirect information, such as a discrepancy between two internal operations that can be observed by an outsider
Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:
the product's own users
people or organizations whose information is created or used by the product, even if they are not direct product users
the product's administrators, including the admins of the system(s) and/or networks on which the product operates
the developer
Information exposures can occur in different ways:
the code explicitly inserts sensitive information into resources or messages that are intentionally made accessible to unauthorized actors, but should not contain the information - i.e., the information should have been "scrubbed" or "sanitized"
a different weakness or mistake indirectly inserts the sensitive information into resources, such as a web script error revealing the full system path of the program.
the code manages resources that intentionally contain sensitive information, but the resources are unintentionally made accessible to unauthorized actors. In this case, the information exposure is resultant - i.e., a different weakness enabled the access to the information in the first place.
It is common practice to describe any loss of confidentiality as an "information exposure," but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.
| https://cwe.mitre.org/data/definitions/200.html | 0 | Ben Hutchings | 2016-04-20 23:23:08+01:00 | atl2: Disable unimplemented scatter/gather feature
atl2 includes NETIF_F_SG in hw_features even though it has no support
for non-linear skbs. This bug was originally harmless since the
driver does not claim to implement checksum offload and that used to
be a requirement for SG.
Now that SG and checksum offload are independent features, if you
explicitly enable SG *and* use one of the rare protocols that can use
SG without checkusm offload, this potentially leaks sensitive
information (before you notice that it just isn't working). Therefore
this obscure bug has been designated CVE-2016-2117.
Reported-by: Justin Yackoski <[email protected]>
Signed-off-by: Ben Hutchings <[email protected]>
Fixes: ec5f06156423 ("net: Kill link between CSUM and SG features.")
Signed-off-by: David S. Miller <[email protected]> | f43bfaeddc79effbf3d0fcb53ca477cca66f3db8 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | atl2_probe | atl2_probe( struct pci_dev * pdev , const struct pci_device_id * ent) | ['pdev', 'ent'] | static int atl2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct net_device *netdev;
struct atl2_adapter *adapter;
static int cards_found;
unsigned long mmio_start;
int mmio_len;
int err;
cards_found = 0;
err = pci_enable_device(pdev);
if (err)
return err;
/*
* atl2 is a shared-high-32-bit device, so we're stuck with 32-bit DMA
* until the kernel has the proper infrastructure to support 64-bit DMA
* on these devices.
*/
if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
printk(KERN_ERR "atl2: No usable DMA configuration, aborting\n");
goto err_dma;
}
/* Mark all PCI regions associated with PCI device
* pdev as being reserved by owner atl2_driver_name */
err = pci_request_regions(pdev, atl2_driver_name);
if (err)
goto err_pci_reg;
/* Enables bus-mastering on the device and calls
* pcibios_set_master to do the needed arch specific settings */
pci_set_master(pdev);
err = -ENOMEM;
netdev = alloc_etherdev(sizeof(struct atl2_adapter));
if (!netdev)
goto err_alloc_etherdev;
SET_NETDEV_DEV(netdev, &pdev->dev);
pci_set_drvdata(pdev, netdev);
adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->pdev = pdev;
adapter->hw.back = adapter;
mmio_start = pci_resource_start(pdev, 0x0);
mmio_len = pci_resource_len(pdev, 0x0);
adapter->hw.mem_rang = (u32)mmio_len;
adapter->hw.hw_addr = ioremap(mmio_start, mmio_len);
if (!adapter->hw.hw_addr) {
err = -EIO;
goto err_ioremap;
}
atl2_setup_pcicmd(pdev);
netdev->netdev_ops = &atl2_netdev_ops;
netdev->ethtool_ops = &atl2_ethtool_ops;
netdev->watchdog_timeo = 5 * HZ;
strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
netdev->mem_start = mmio_start;
netdev->mem_end = mmio_start + mmio_len;
adapter->bd_number = cards_found;
adapter->pci_using_64 = false;
/* setup the private structure */
err = atl2_sw_init(adapter);
if (err)
goto err_sw_init;
err = -EIO;
netdev->hw_features = NETIF_F_SG | NETIF_F_HW_VLAN_CTAG_RX;
netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX);
/* Init PHY as early as possible due to power saving issue */
atl2_phy_init(&adapter->hw);
/* reset the controller to
* put the device in a known good starting state */
if (atl2_reset_hw(&adapter->hw)) {
err = -EIO;
goto err_reset;
}
/* copy the MAC address out of the EEPROM */
atl2_read_mac_addr(&adapter->hw);
memcpy(netdev->dev_addr, adapter->hw.mac_addr, netdev->addr_len);
if (!is_valid_ether_addr(netdev->dev_addr)) {
err = -EIO;
goto err_eeprom;
}
atl2_check_options(adapter);
setup_timer(&adapter->watchdog_timer, atl2_watchdog,
(unsigned long)adapter);
setup_timer(&adapter->phy_config_timer, atl2_phy_config,
(unsigned long)adapter);
INIT_WORK(&adapter->reset_task, atl2_reset_task);
INIT_WORK(&adapter->link_chg_task, atl2_link_chg_task);
strcpy(netdev->name, "eth%d"); /* ?? */
err = register_netdev(netdev);
if (err)
goto err_register;
/* assume we have no link for now */
netif_carrier_off(netdev);
netif_stop_queue(netdev);
cards_found++;
return 0;
err_reset:
err_register:
err_sw_init:
err_eeprom:
iounmap(adapter->hw.hw_addr);
err_ioremap:
free_netdev(netdev);
err_alloc_etherdev:
pci_release_regions(pdev);
err_pci_reg:
err_dma:
pci_disable_device(pdev);
return err;
} | 563 | True | 1 |
|
CVE-2017-7495 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:N | LOCAL | LOW | NONE | PARTIAL | NONE | NONE | 2.1 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | NONE | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824', 'name': 'https://github.com/torvalds/linux/commit/06bd3c36a733ac27962fea7d6f47168841376824', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1450261', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1450261', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2017/05/15/2', 'name': 'http://www.openwall.com/lists/oss-security/2017/05/15/2', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06bd3c36a733ac27962fea7d6f47168841376824', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/98491', 'name': '98491', 'refsource': 'BID', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-09-01', 'name': 'https://source.android.com/security/bulletin/2017-09-01', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.1', 'cpe_name': []}]}] | [{'lang': 'en', 'value': "fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file."}] | 2017-09-09T01:29Z | 2017-05-15T18:29Z | Exposure of Sensitive Information to an Unauthorized Actor | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:
private, personal information, such as personal messages, financial data, health records, geographic location, or contact details
system status and environment, such as the operating system and installed packages
business secrets and intellectual property
network status and configuration
the product's own code or internal state
metadata, e.g. logging of connections or message headers
indirect information, such as a discrepancy between two internal operations that can be observed by an outsider
Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:
the product's own users
people or organizations whose information is created or used by the product, even if they are not direct product users
the product's administrators, including the admins of the system(s) and/or networks on which the product operates
the developer
Information exposures can occur in different ways:
the code explicitly inserts sensitive information into resources or messages that are intentionally made accessible to unauthorized actors, but should not contain the information - i.e., the information should have been "scrubbed" or "sanitized"
a different weakness or mistake indirectly inserts the sensitive information into resources, such as a web script error revealing the full system path of the program.
the code manages resources that intentionally contain sensitive information, but the resources are unintentionally made accessible to unauthorized actors. In this case, the information exposure is resultant - i.e., a different weakness enabled the access to the information in the first place.
It is common practice to describe any loss of confidentiality as an "information exposure," but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.
| https://cwe.mitre.org/data/definitions/200.html | 0 | Jan Kara | 2016-04-24 00:56:03-04:00 | ext4: fix data exposure after a crash
Huang has reported that in his powerfail testing he is seeing stale
block contents in some of recently allocated blocks although he mounts
ext4 in data=ordered mode. After some investigation I have found out
that indeed when delayed allocation is used, we don't add inode to
transaction's list of inodes needing flushing before commit. Originally
we were doing that but commit f3b59291a69d removed the logic with a
flawed argument that it is not needed.
The problem is that although for delayed allocated blocks we write their
contents immediately after allocating them, there is no guarantee that
the IO scheduler or device doesn't reorder things and thus transaction
allocating blocks and attaching them to inode can reach stable storage
before actual block contents. Actually whenever we attach freshly
allocated blocks to inode using a written extent, we should add inode to
transaction's ordered inode list to make sure we properly wait for block
contents to be written before committing the transaction. So that is
what we do in this patch. This also handles other cases where stale data
exposure was possible - like filling hole via mmap in
data=ordered,nodelalloc mode.
The only exception to the above rule are extending direct IO writes where
blkdev_direct_IO() waits for IO to complete before increasing i_size and
thus stale data exposure is not possible. For now we don't complicate
the code with optimizing this special case since the overhead is pretty
low. In case this is observed to be a performance problem we can always
handle it using a special flag to ext4_map_blocks().
CC: [email protected]
Fixes: f3b59291a69d0b734be1fc8be489fef2dd846d3d
Reported-by: "HUANG Weller (CM/ESW12-CN)" <[email protected]>
Tested-by: "HUANG Weller (CM/ESW12-CN)" <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Theodore Ts'o <[email protected]> | 06bd3c36a733ac27962fea7d6f47168841376824 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ext4_write_end | ext4_write_end( struct file * file , struct address_space * mapping , loff_t pos , unsigned len , unsigned copied , struct page * page , void * fsdata) | ['file', 'mapping', 'pos', 'len', 'copied', 'page', 'fsdata'] | static int ext4_write_end(struct file *file,
struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied,
struct page *page, void *fsdata)
{
handle_t *handle = ext4_journal_current_handle();
struct inode *inode = mapping->host;
loff_t old_size = inode->i_size;
int ret = 0, ret2;
int i_size_changed = 0;
trace_ext4_write_end(inode, pos, len, copied);
if (ext4_test_inode_state(inode, EXT4_STATE_ORDERED_MODE)) {
ret = ext4_jbd2_file_inode(handle, inode);
if (ret) {
unlock_page(page);
put_page(page);
goto errout;
}
}
if (ext4_has_inline_data(inode)) {
ret = ext4_write_inline_data_end(inode, pos, len,
copied, page);
if (ret < 0)
goto errout;
copied = ret;
} else
copied = block_write_end(file, mapping, pos,
len, copied, page, fsdata);
/*
* it's important to update i_size while still holding page lock:
* page writeout could otherwise come in and zero beyond i_size.
*/
i_size_changed = ext4_update_inode_size(inode, pos + copied);
unlock_page(page);
put_page(page);
if (old_size < pos)
pagecache_isize_extended(inode, old_size, pos);
/*
* Don't mark the inode dirty under page lock. First, it unnecessarily
* makes the holding time of page lock longer. Second, it forces lock
* ordering of page lock and transaction start for journaling
* filesystems.
*/
if (i_size_changed)
ext4_mark_inode_dirty(handle, inode);
if (pos + len > inode->i_size && ext4_can_truncate(inode))
/* if we have allocated more blocks and copied
* less. We will have blocks allocated outside
* inode->i_size. So truncate them
*/
ext4_orphan_add(handle, inode);
errout:
ret2 = ext4_journal_stop(handle);
if (!ret)
ret = ret2;
if (pos + len > inode->i_size) {
ext4_truncate_failed_write(inode);
/*
* If truncate failed early the inode might still be
* on the orphan list; we need to make sure the inode
* is removed from the orphan list in that case.
*/
if (inode->i_nlink)
ext4_orphan_del(NULL, inode);
}
return ret ? ret : copied;
} | 299 | True | 1 |
|
CVE-2016-4557 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334307', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334307', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7', 'name': 'https://github.com/torvalds/linux/commit/8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugs.chromium.org/p/project-zero/issues/detail?id=808', 'name': 'https://bugs.chromium.org/p/project-zero/issues/detail?id=808', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugs.debian.org/823603', 'name': 'https://bugs.debian.org/823603', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/06/4', 'name': '[oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40759/', 'name': '40759', 'refsource': 'EXPLOIT-DB', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor.'}] | 2017-09-03T01:29Z | 2016-05-23T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Jann Horn | 2016-04-26 22:26:26+02:00 | bpf: fix double-fdput in replace_map_fd_with_map_ptr()
When bpf(BPF_PROG_LOAD, ...) was invoked with a BPF program whose bytecode
references a non-map file descriptor as a map file descriptor, the error
handling code called fdput() twice instead of once (in __bpf_map_get() and
in replace_map_fd_with_map_ptr()). If the file descriptor table of the
current task is shared, this causes f_count to be decremented too much,
allowing the struct file to be freed while it is still in use
(use-after-free). This can be exploited to gain root privileges by an
unprivileged user.
This bug was introduced in
commit 0246e64d9a5f ("bpf: handle pseudo BPF_LD_IMM64 insn"), but is only
exploitable since
commit 1be7f75d1668 ("bpf: enable non-root eBPF programs") because
previously, CAP_SYS_ADMIN was required to reach the vulnerable code.
(posted publicly according to request by maintainer)
Signed-off-by: Jann Horn <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Acked-by: Alexei Starovoitov <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 8358b02bf67d3a5d8a825070e1aa73f25fb2e4c7 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | replace_map_fd_with_map_ptr | replace_map_fd_with_map_ptr( struct verifier_env * env) | ['env'] | static int replace_map_fd_with_map_ptr(struct verifier_env *env)
{
struct bpf_insn *insn = env->prog->insnsi;
int insn_cnt = env->prog->len;
int i, j;
for (i = 0; i < insn_cnt; i++, insn++) {
if (BPF_CLASS(insn->code) == BPF_LDX &&
(BPF_MODE(insn->code) != BPF_MEM || insn->imm != 0)) {
verbose("BPF_LDX uses reserved fields\n");
return -EINVAL;
}
if (BPF_CLASS(insn->code) == BPF_STX &&
((BPF_MODE(insn->code) != BPF_MEM &&
BPF_MODE(insn->code) != BPF_XADD) || insn->imm != 0)) {
verbose("BPF_STX uses reserved fields\n");
return -EINVAL;
}
if (insn[0].code == (BPF_LD | BPF_IMM | BPF_DW)) {
struct bpf_map *map;
struct fd f;
if (i == insn_cnt - 1 || insn[1].code != 0 ||
insn[1].dst_reg != 0 || insn[1].src_reg != 0 ||
insn[1].off != 0) {
verbose("invalid bpf_ld_imm64 insn\n");
return -EINVAL;
}
if (insn->src_reg == 0)
/* valid generic load 64-bit imm */
goto next_insn;
if (insn->src_reg != BPF_PSEUDO_MAP_FD) {
verbose("unrecognized bpf_ld_imm64 insn\n");
return -EINVAL;
}
f = fdget(insn->imm);
map = __bpf_map_get(f);
if (IS_ERR(map)) {
verbose("fd %d is not pointing to valid bpf_map\n",
insn->imm);
fdput(f);
return PTR_ERR(map);
}
/* store map pointer inside BPF_LD_IMM64 instruction */
insn[0].imm = (u32) (unsigned long) map;
insn[1].imm = ((u64) (unsigned long) map) >> 32;
/* check whether we recorded this map already */
for (j = 0; j < env->used_map_cnt; j++)
if (env->used_maps[j] == map) {
fdput(f);
goto next_insn;
}
if (env->used_map_cnt >= MAX_USED_MAPS) {
fdput(f);
return -E2BIG;
}
/* remember this map */
env->used_maps[env->used_map_cnt++] = map;
/* hold the map. If the program is rejected by verifier,
* the map will be released by release_maps() or it
* will be used by the valid program until it's unloaded
* and all maps are released in free_bpf_prog_info()
*/
bpf_map_inc(map, false);
fdput(f);
next_insn:
insn++;
i++;
}
}
/* now all pseudo BPF_LD_IMM64 instructions load valid
* 'struct bpf_map *' into a register instead of user map_fd.
* These pointers will be used later by verifier to validate map access.
*/
return 0;
} | 426 | True | 1 |
|
CVE-2016-6130 | False | False | False | False | AV:L/AC:M/Au:N/C:P/I:N/A:N | LOCAL | MEDIUM | NONE | PARTIAL | NONE | NONE | 1.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N | LOCAL | HIGH | LOW | NONE | UNCHANGED | HIGH | NONE | NONE | 4.7 | MEDIUM | 1.0 | 3.6 | nan | [{'url': 'https://github.com/torvalds/linux/commit/532c34b5fbf1687df63b3fcd5b2846312ac943c6', 'name': 'https://github.com/torvalds/linux/commit/532c34b5fbf1687df63b3fcd5b2846312ac943c6', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=532c34b5fbf1687df63b3fcd5b2846312ac943c6', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=532c34b5fbf1687df63b3fcd5b2846312ac943c6', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/archive/1/538803/30/0/threaded', 'name': '20160630 [CVE-2016-6130] Double-Fetch Vulnerability in Linux-4.5/drivers/s390/char/sclp_ctl.c', 'refsource': 'BUGTRAQ', 'tags': []}, {'url': 'https://bugzilla.kernel.org/show_bug.cgi?id=116741', 'name': 'https://bugzilla.kernel.org/show_bug.cgi?id=116741', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3616', 'name': 'DSA-3616', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91540', 'name': '91540', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.5', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the sclp_ctl_ioctl_sccb function in drivers/s390/char/sclp_ctl.c in the Linux kernel before 4.6 allows local users to obtain sensitive information from kernel memory by changing a certain length value, aka a "double fetch" vulnerability.'}] | 2016-11-28T20:30Z | 2016-07-03T21:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Martin Schwidefsky | 2016-04-25 17:54:28+02:00 | s390/sclp_ctl: fix potential information leak with /dev/sclp
The sclp_ctl_ioctl_sccb function uses two copy_from_user calls to
retrieve the sclp request from user space. The first copy_from_user
fetches the length of the request which is stored in the first two
bytes of the request. The second copy_from_user gets the complete
sclp request, but this copies the length field a second time.
A malicious user may have changed the length in the meantime.
Reported-by: Pengfei Wang <[email protected]>
Reviewed-by: Michael Holzheu <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]> | 532c34b5fbf1687df63b3fcd5b2846312ac943c6 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | sclp_ctl_ioctl_sccb | sclp_ctl_ioctl_sccb( void __user * user_area) | ['user_area'] | static int sclp_ctl_ioctl_sccb(void __user *user_area)
{
struct sclp_ctl_sccb ctl_sccb;
struct sccb_header *sccb;
int rc;
if (copy_from_user(&ctl_sccb, user_area, sizeof(ctl_sccb)))
return -EFAULT;
if (!sclp_ctl_cmdw_supported(ctl_sccb.cmdw))
return -EOPNOTSUPP;
sccb = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!sccb)
return -ENOMEM;
if (copy_from_user(sccb, u64_to_uptr(ctl_sccb.sccb), sizeof(*sccb))) {
rc = -EFAULT;
goto out_free;
}
if (sccb->length > PAGE_SIZE || sccb->length < 8)
return -EINVAL;
if (copy_from_user(sccb, u64_to_uptr(ctl_sccb.sccb), sccb->length)) {
rc = -EFAULT;
goto out_free;
}
rc = sclp_sync_request(ctl_sccb.cmdw, sccb);
if (rc)
goto out_free;
if (copy_to_user(u64_to_uptr(ctl_sccb.sccb), sccb, sccb->length))
rc = -EFAULT;
out_free:
free_page((unsigned long) sccb);
return rc;
} | 207 | True | 1 |
|
CVE-2016-4558 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | HIGH | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.0 | HIGH | 1.0 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/06/4', 'name': '[oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.'}] | 2016-08-02T18:43Z | 2016-05-23T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Alexei Starovoitov | 2016-04-27 18:56:20-07:00 | bpf: fix refcnt overflow
On a system with >32Gbyte of phyiscal memory and infinite RLIMIT_MEMLOCK,
the malicious application may overflow 32-bit bpf program refcnt.
It's also possible to overflow map refcnt on 1Tb system.
Impose 32k hard limit which means that the same bpf program or
map cannot be shared by more than 32k processes.
Fixes: 1be7f75d1668 ("bpf: enable non-root eBPF programs")
Reported-by: Jann Horn <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 92117d8443bc5afacc8d5ba82e541946310f106e | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | bpf_any_get | bpf_any_get( void * raw , enum bpf_type type) | ['raw', 'type'] | static void *bpf_any_get(void *raw, enum bpf_type type)
{
switch (type) {
case BPF_TYPE_PROG:
atomic_inc(&((struct bpf_prog *)raw)->aux->refcnt);
break;
case BPF_TYPE_MAP:
bpf_map_inc(raw, true);
break;
default:
WARN_ON_ONCE(1);
break;
}
return raw;
} | 64 | True | 1 |
|
CVE-2016-4558 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | HIGH | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.0 | HIGH | 1.0 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/06/4', 'name': '[oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.'}] | 2016-08-02T18:43Z | 2016-05-23T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Alexei Starovoitov | 2016-04-27 18:56:20-07:00 | bpf: fix refcnt overflow
On a system with >32Gbyte of phyiscal memory and infinite RLIMIT_MEMLOCK,
the malicious application may overflow 32-bit bpf program refcnt.
It's also possible to overflow map refcnt on 1Tb system.
Impose 32k hard limit which means that the same bpf program or
map cannot be shared by more than 32k processes.
Fixes: 1be7f75d1668 ("bpf: enable non-root eBPF programs")
Reported-by: Jann Horn <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 92117d8443bc5afacc8d5ba82e541946310f106e | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | bpf_obj_do_get | bpf_obj_do_get( const struct filename * pathname , enum bpf_type * type) | ['pathname', 'type'] | static void *bpf_obj_do_get(const struct filename *pathname,
enum bpf_type *type)
{
struct inode *inode;
struct path path;
void *raw;
int ret;
ret = kern_path(pathname->name, LOOKUP_FOLLOW, &path);
if (ret)
return ERR_PTR(ret);
inode = d_backing_inode(path.dentry);
ret = inode_permission(inode, MAY_WRITE);
if (ret)
goto out;
ret = bpf_inode_type(inode, type);
if (ret)
goto out;
raw = bpf_any_get(inode->i_private, *type);
touch_atime(&path);
path_put(&path);
return raw;
out:
path_put(&path);
return ERR_PTR(ret);
} | 137 | True | 1 |
|
CVE-2016-4558 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | HIGH | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.0 | HIGH | 1.0 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/06/4', 'name': '[oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.'}] | 2016-08-02T18:43Z | 2016-05-23T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Alexei Starovoitov | 2016-04-27 18:56:20-07:00 | bpf: fix refcnt overflow
On a system with >32Gbyte of phyiscal memory and infinite RLIMIT_MEMLOCK,
the malicious application may overflow 32-bit bpf program refcnt.
It's also possible to overflow map refcnt on 1Tb system.
Impose 32k hard limit which means that the same bpf program or
map cannot be shared by more than 32k processes.
Fixes: 1be7f75d1668 ("bpf: enable non-root eBPF programs")
Reported-by: Jann Horn <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 92117d8443bc5afacc8d5ba82e541946310f106e | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | bpf_map_get_with_uref | bpf_map_get_with_uref( u32 ufd) | ['ufd'] | struct bpf_map *bpf_map_get_with_uref(u32 ufd)
{
struct fd f = fdget(ufd);
struct bpf_map *map;
map = __bpf_map_get(f);
if (IS_ERR(map))
return map;
bpf_map_inc(map, true);
fdput(f);
return map;
} | 53 | True | 1 |
|
CVE-2016-4558 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | HIGH | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.0 | HIGH | 1.0 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/06/4', 'name': '[oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.'}] | 2016-08-02T18:43Z | 2016-05-23T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Alexei Starovoitov | 2016-04-27 18:56:20-07:00 | bpf: fix refcnt overflow
On a system with >32Gbyte of phyiscal memory and infinite RLIMIT_MEMLOCK,
the malicious application may overflow 32-bit bpf program refcnt.
It's also possible to overflow map refcnt on 1Tb system.
Impose 32k hard limit which means that the same bpf program or
map cannot be shared by more than 32k processes.
Fixes: 1be7f75d1668 ("bpf: enable non-root eBPF programs")
Reported-by: Jann Horn <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 92117d8443bc5afacc8d5ba82e541946310f106e | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | bpf_map_inc | bpf_map_inc( struct bpf_map * map , bool uref) | ['map', 'uref'] | void bpf_map_inc(struct bpf_map *map, bool uref)
{
atomic_inc(&map->refcnt);
if (uref)
atomic_inc(&map->usercnt);
} | 32 | True | 1 |
|
CVE-2016-4558 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | HIGH | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.0 | HIGH | 1.0 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/06/4', 'name': '[oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.'}] | 2016-08-02T18:43Z | 2016-05-23T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Alexei Starovoitov | 2016-04-27 18:56:20-07:00 | bpf: fix refcnt overflow
On a system with >32Gbyte of phyiscal memory and infinite RLIMIT_MEMLOCK,
the malicious application may overflow 32-bit bpf program refcnt.
It's also possible to overflow map refcnt on 1Tb system.
Impose 32k hard limit which means that the same bpf program or
map cannot be shared by more than 32k processes.
Fixes: 1be7f75d1668 ("bpf: enable non-root eBPF programs")
Reported-by: Jann Horn <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 92117d8443bc5afacc8d5ba82e541946310f106e | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | bpf_prog_get | bpf_prog_get( u32 ufd) | ['ufd'] | struct bpf_prog *bpf_prog_get(u32 ufd)
{
struct fd f = fdget(ufd);
struct bpf_prog *prog;
prog = __bpf_prog_get(f);
if (IS_ERR(prog))
return prog;
atomic_inc(&prog->aux->refcnt);
fdput(f);
return prog;
} | 56 | True | 1 |
|
CVE-2016-4558 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | HIGH | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.0 | HIGH | 1.0 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'https://github.com/torvalds/linux/commit/92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/06/4', 'name': '[oss-security] 20160506 CVE Requests: Linux: BPF flaws (one use-after-free / local root privilege escalation)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1334303', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92117d8443bc5afacc8d5ba82e541946310f106e', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The BPF subsystem in the Linux kernel before 4.5.5 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted application on (1) a system with more than 32 Gb of memory, related to the program reference count or (2) a 1 Tb system, related to the map reference count.'}] | 2016-08-02T18:43Z | 2016-05-23T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Alexei Starovoitov | 2016-04-27 18:56:20-07:00 | bpf: fix refcnt overflow
On a system with >32Gbyte of phyiscal memory and infinite RLIMIT_MEMLOCK,
the malicious application may overflow 32-bit bpf program refcnt.
It's also possible to overflow map refcnt on 1Tb system.
Impose 32k hard limit which means that the same bpf program or
map cannot be shared by more than 32k processes.
Fixes: 1be7f75d1668 ("bpf: enable non-root eBPF programs")
Reported-by: Jann Horn <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 92117d8443bc5afacc8d5ba82e541946310f106e | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | replace_map_fd_with_map_ptr | replace_map_fd_with_map_ptr( struct verifier_env * env) | ['env'] | static int replace_map_fd_with_map_ptr(struct verifier_env *env)
{
struct bpf_insn *insn = env->prog->insnsi;
int insn_cnt = env->prog->len;
int i, j;
for (i = 0; i < insn_cnt; i++, insn++) {
if (BPF_CLASS(insn->code) == BPF_LDX &&
(BPF_MODE(insn->code) != BPF_MEM || insn->imm != 0)) {
verbose("BPF_LDX uses reserved fields\n");
return -EINVAL;
}
if (BPF_CLASS(insn->code) == BPF_STX &&
((BPF_MODE(insn->code) != BPF_MEM &&
BPF_MODE(insn->code) != BPF_XADD) || insn->imm != 0)) {
verbose("BPF_STX uses reserved fields\n");
return -EINVAL;
}
if (insn[0].code == (BPF_LD | BPF_IMM | BPF_DW)) {
struct bpf_map *map;
struct fd f;
if (i == insn_cnt - 1 || insn[1].code != 0 ||
insn[1].dst_reg != 0 || insn[1].src_reg != 0 ||
insn[1].off != 0) {
verbose("invalid bpf_ld_imm64 insn\n");
return -EINVAL;
}
if (insn->src_reg == 0)
/* valid generic load 64-bit imm */
goto next_insn;
if (insn->src_reg != BPF_PSEUDO_MAP_FD) {
verbose("unrecognized bpf_ld_imm64 insn\n");
return -EINVAL;
}
f = fdget(insn->imm);
map = __bpf_map_get(f);
if (IS_ERR(map)) {
verbose("fd %d is not pointing to valid bpf_map\n",
insn->imm);
return PTR_ERR(map);
}
/* store map pointer inside BPF_LD_IMM64 instruction */
insn[0].imm = (u32) (unsigned long) map;
insn[1].imm = ((u64) (unsigned long) map) >> 32;
/* check whether we recorded this map already */
for (j = 0; j < env->used_map_cnt; j++)
if (env->used_maps[j] == map) {
fdput(f);
goto next_insn;
}
if (env->used_map_cnt >= MAX_USED_MAPS) {
fdput(f);
return -E2BIG;
}
/* remember this map */
env->used_maps[env->used_map_cnt++] = map;
/* hold the map. If the program is rejected by verifier,
* the map will be released by release_maps() or it
* will be used by the valid program until it's unloaded
* and all maps are released in free_bpf_prog_info()
*/
bpf_map_inc(map, false);
fdput(f);
next_insn:
insn++;
i++;
}
}
/* now all pseudo BPF_LD_IMM64 instructions load valid
* 'struct bpf_map *' into a register instead of user map_fd.
* These pointers will be used later by verifier to validate map access.
*/
return 0;
} | 421 | True | 1 |
|
CVE-2016-4482 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:N | LOCAL | LOW | NONE | PARTIAL | NONE | NONE | 2.1 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | LOCAL | LOW | NONE | NONE | UNCHANGED | HIGH | NONE | NONE | 6.2 | MEDIUM | 2.5 | 3.6 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=681fef8380eb818c0b845fca5d2ab1dcbab114ee', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=681fef8380eb818c0b845fca5d2ab1dcbab114ee', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1332931', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1332931', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/04/2', 'name': '[oss-security] 20160503 CVE Request: information leak in devio of Linux kernel', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/681fef8380eb818c0b845fca5d2ab1dcbab114ee', 'name': 'https://github.com/torvalds/linux/commit/681fef8380eb818c0b845fca5d2ab1dcbab114ee', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184414.html', 'name': 'FEDORA-2016-4ce97823af', 'refsource': 'FEDORA', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3021-1', 'name': 'USN-3021-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3021-2', 'name': 'USN-3021-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/90029', 'name': '90029', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The proc_connectinfo function in drivers/usb/core/devio.c in the Linux kernel through 4.6 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted USBDEVFS_CONNECTINFO ioctl call.'}] | 2016-11-28T20:18Z | 2016-05-23T10:59Z | Exposure of Sensitive Information to an Unauthorized Actor | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:
private, personal information, such as personal messages, financial data, health records, geographic location, or contact details
system status and environment, such as the operating system and installed packages
business secrets and intellectual property
network status and configuration
the product's own code or internal state
metadata, e.g. logging of connections or message headers
indirect information, such as a discrepancy between two internal operations that can be observed by an outsider
Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:
the product's own users
people or organizations whose information is created or used by the product, even if they are not direct product users
the product's administrators, including the admins of the system(s) and/or networks on which the product operates
the developer
Information exposures can occur in different ways:
the code explicitly inserts sensitive information into resources or messages that are intentionally made accessible to unauthorized actors, but should not contain the information - i.e., the information should have been "scrubbed" or "sanitized"
a different weakness or mistake indirectly inserts the sensitive information into resources, such as a web script error revealing the full system path of the program.
the code manages resources that intentionally contain sensitive information, but the resources are unintentionally made accessible to unauthorized actors. In this case, the information exposure is resultant - i.e., a different weakness enabled the access to the information in the first place.
It is common practice to describe any loss of confidentiality as an "information exposure," but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.
| https://cwe.mitre.org/data/definitions/200.html | 0 | Kangjie Lu | 2016-05-03 16:32:16-04:00 | USB: usbfs: fix potential infoleak in devio
The stack object “ci” has a total size of 8 bytes. Its last 3 bytes
are padding bytes which are not initialized and leaked to userland
via “copy_to_user”.
Signed-off-by: Kangjie Lu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]> | 681fef8380eb818c0b845fca5d2ab1dcbab114ee | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | proc_connectinfo | proc_connectinfo( struct usb_dev_state * ps , void __user * arg) | ['ps', 'arg'] | static int proc_connectinfo(struct usb_dev_state *ps, void __user *arg)
{
struct usbdevfs_connectinfo ci = {
.devnum = ps->dev->devnum,
.slow = ps->dev->speed == USB_SPEED_LOW
};
if (copy_to_user(arg, &ci, sizeof(ci)))
return -EFAULT;
return 0;
} | 62 | True | 1 |
|
CVE-2016-4486 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:N | LOCAL | LOW | NONE | PARTIAL | NONE | NONE | 2.1 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | NONE | NONE | 3.3 | LOW | 1.8 | 1.4 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/05/04/27', 'name': '[oss-security] 20160504 CVE Request: kernel information leak vulnerability in rtnetlink', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5f8e44741f9f216e33736ea4ec65ca9ac03036e6', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5f8e44741f9f216e33736ea4ec65ca9ac03036e6', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/5f8e44741f9f216e33736ea4ec65ca9ac03036e6', 'name': 'https://github.com/torvalds/linux/commit/5f8e44741f9f216e33736ea4ec65ca9ac03036e6', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1333316', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1333316', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2997-1', 'name': 'USN-2997-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2996-1', 'name': 'USN-2996-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3002-1', 'name': 'USN-3002-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3001-1', 'name': 'USN-3001-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3004-1', 'name': 'USN-3004-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2989-1', 'name': 'USN-2989-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3000-1', 'name': 'USN-3000-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2998-1', 'name': 'USN-2998-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3003-1', 'name': 'USN-3003-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html', 'name': 'SUSE-SU-2016:2074', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/90051', 'name': '90051', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/46006/', 'name': '46006', 'refsource': 'EXPLOIT-DB', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The rtnl_fill_link_ifmap function in net/core/rtnetlink.c in the Linux kernel before 4.5.5 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading a Netlink message.'}] | 2018-12-20T11:29Z | 2016-05-23T10:59Z | Exposure of Sensitive Information to an Unauthorized Actor | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:
private, personal information, such as personal messages, financial data, health records, geographic location, or contact details
system status and environment, such as the operating system and installed packages
business secrets and intellectual property
network status and configuration
the product's own code or internal state
metadata, e.g. logging of connections or message headers
indirect information, such as a discrepancy between two internal operations that can be observed by an outsider
Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:
the product's own users
people or organizations whose information is created or used by the product, even if they are not direct product users
the product's administrators, including the admins of the system(s) and/or networks on which the product operates
the developer
Information exposures can occur in different ways:
the code explicitly inserts sensitive information into resources or messages that are intentionally made accessible to unauthorized actors, but should not contain the information - i.e., the information should have been "scrubbed" or "sanitized"
a different weakness or mistake indirectly inserts the sensitive information into resources, such as a web script error revealing the full system path of the program.
the code manages resources that intentionally contain sensitive information, but the resources are unintentionally made accessible to unauthorized actors. In this case, the information exposure is resultant - i.e., a different weakness enabled the access to the information in the first place.
It is common practice to describe any loss of confidentiality as an "information exposure," but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.
| https://cwe.mitre.org/data/definitions/200.html | 0 | Kangjie Lu | 2016-05-03 16:46:24-04:00 | net: fix infoleak in rtnetlink
The stack object “map” has a total size of 32 bytes. Its last 4
bytes are padding generated by compiler. These padding bytes are
not initialized and sent out via “nla_put”.
Signed-off-by: Kangjie Lu <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 5f8e44741f9f216e33736ea4ec65ca9ac03036e6 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | rtnl_fill_link_ifmap | rtnl_fill_link_ifmap( struct sk_buff * skb , struct net_device * dev) | ['skb', 'dev'] | static int rtnl_fill_link_ifmap(struct sk_buff *skb, struct net_device *dev)
{
struct rtnl_link_ifmap map = {
.mem_start = dev->mem_start,
.mem_end = dev->mem_end,
.base_addr = dev->base_addr,
.irq = dev->irq,
.dma = dev->dma,
.port = dev->if_port,
};
if (nla_put(skb, IFLA_MAP, sizeof(map), &map))
return -EMSGSIZE;
return 0;
} | 87 | True | 1 |
|
CVE-2016-4581 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | NONE | NONE | HIGH | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/05/11/2', 'name': '[oss-security] 20160511 CVE request: Mishandling the first propagated copy being a slave', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1333712', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1333712', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/5ec0811d30378ae104f250bfc9b3640242d81e3f', 'name': 'https://github.com/torvalds/linux/commit/5ec0811d30378ae104f250bfc9b3640242d81e3f', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5ec0811d30378ae104f250bfc9b3640242d81e3f', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5ec0811d30378ae104f250bfc9b3640242d81e3f', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3000-1', 'name': 'USN-3000-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2998-1', 'name': 'USN-2998-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3002-1', 'name': 'USN-3002-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3003-1', 'name': 'USN-3003-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3001-1', 'name': 'USN-3001-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3004-1', 'name': 'USN-3004-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2989-1', 'name': 'USN-2989-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/90607', 'name': '90607', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2584.html', 'name': 'RHSA-2016:2584', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.'}] | 2019-12-27T16:08Z | 2016-05-23T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Eric W. Biederman | 2016-05-05 09:29:29-05:00 | propogate_mnt: Handle the first propogated copy being a slave
When the first propgated copy was a slave the following oops would result:
> BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
> IP: [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0
> PGD bacd4067 PUD bac66067 PMD 0
> Oops: 0000 [#1] SMP
> Modules linked in:
> CPU: 1 PID: 824 Comm: mount Not tainted 4.6.0-rc5userns+ #1523
> Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
> task: ffff8800bb0a8000 ti: ffff8800bac3c000 task.ti: ffff8800bac3c000
> RIP: 0010:[<ffffffff811fba4e>] [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0
> RSP: 0018:ffff8800bac3fd38 EFLAGS: 00010283
> RAX: 0000000000000000 RBX: ffff8800bb77ec00 RCX: 0000000000000010
> RDX: 0000000000000000 RSI: ffff8800bb58c000 RDI: ffff8800bb58c480
> RBP: ffff8800bac3fd48 R08: 0000000000000001 R09: 0000000000000000
> R10: 0000000000001ca1 R11: 0000000000001c9d R12: 0000000000000000
> R13: ffff8800ba713800 R14: ffff8800bac3fda0 R15: ffff8800bb77ec00
> FS: 00007f3c0cd9b7e0(0000) GS:ffff8800bfb00000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000010 CR3: 00000000bb79d000 CR4: 00000000000006e0
> Stack:
> ffff8800bb77ec00 0000000000000000 ffff8800bac3fd88 ffffffff811fbf85
> ffff8800bac3fd98 ffff8800bb77f080 ffff8800ba713800 ffff8800bb262b40
> 0000000000000000 0000000000000000 ffff8800bac3fdd8 ffffffff811f1da0
> Call Trace:
> [<ffffffff811fbf85>] propagate_mnt+0x105/0x140
> [<ffffffff811f1da0>] attach_recursive_mnt+0x120/0x1e0
> [<ffffffff811f1ec3>] graft_tree+0x63/0x70
> [<ffffffff811f1f6b>] do_add_mount+0x9b/0x100
> [<ffffffff811f2c1a>] do_mount+0x2aa/0xdf0
> [<ffffffff8117efbe>] ? strndup_user+0x4e/0x70
> [<ffffffff811f3a45>] SyS_mount+0x75/0xc0
> [<ffffffff8100242b>] do_syscall_64+0x4b/0xa0
> [<ffffffff81988f3c>] entry_SYSCALL64_slow_path+0x25/0x25
> Code: 00 00 75 ec 48 89 0d 02 22 22 01 8b 89 10 01 00 00 48 89 05 fd 21 22 01 39 8e 10 01 00 00 0f 84 e0 00 00 00 48 8b 80 d8 00 00 00 <48> 8b 50 10 48 89 05 df 21 22 01 48 89 15 d0 21 22 01 8b 53 30
> RIP [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0
> RSP <ffff8800bac3fd38>
> CR2: 0000000000000010
> ---[ end trace 2725ecd95164f217 ]---
This oops happens with the namespace_sem held and can be triggered by
non-root users. An all around not pleasant experience.
To avoid this scenario when finding the appropriate source mount to
copy stop the walk up the mnt_master chain when the first source mount
is encountered.
Further rewrite the walk up the last_source mnt_master chain so that
it is clear what is going on.
The reason why the first source mount is special is that it it's
mnt_parent is not a mount in the dest_mnt propagation tree, and as
such termination conditions based up on the dest_mnt mount propgation
tree do not make sense.
To avoid other kinds of confusion last_dest is not changed when
computing last_source. last_dest is only used once in propagate_one
and that is above the point of the code being modified, so changing
the global variable is meaningless and confusing.
Cc: [email protected]
fixes: f2ebb3a921c1ca1e2ddd9242e95a1989a50c4c68 ("smarter propagate_mnt()")
Reported-by: Tycho Andersen <[email protected]>
Reviewed-by: Seth Forshee <[email protected]>
Tested-by: Seth Forshee <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]> | 5ec0811d30378ae104f250bfc9b3640242d81e3f | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | propagate_one | propagate_one( struct mount * m) | ['m'] | static int propagate_one(struct mount *m)
{
struct mount *child;
int type;
/* skip ones added by this propagate_mnt() */
if (IS_MNT_NEW(m))
return 0;
/* skip if mountpoint isn't covered by it */
if (!is_subdir(mp->m_dentry, m->mnt.mnt_root))
return 0;
if (peers(m, last_dest)) {
type = CL_MAKE_SHARED;
} else {
struct mount *n, *p;
for (n = m; ; n = p) {
p = n->mnt_master;
if (p == dest_master || IS_MNT_MARKED(p)) {
while (last_dest->mnt_master != p) {
last_source = last_source->mnt_master;
last_dest = last_source->mnt_parent;
}
if (!peers(n, last_dest)) {
last_source = last_source->mnt_master;
last_dest = last_source->mnt_parent;
}
break;
}
}
type = CL_SLAVE;
/* beginning of peer group among the slaves? */
if (IS_MNT_SHARED(m))
type |= CL_MAKE_SHARED;
}
/* Notice when we are propagating across user namespaces */
if (m->mnt_ns->user_ns != user_ns)
type |= CL_UNPRIVILEGED;
child = copy_tree(last_source, last_source->mnt.mnt_root, type);
if (IS_ERR(child))
return PTR_ERR(child);
child->mnt.mnt_flags &= ~MNT_LOCKED;
mnt_set_mountpoint(m, mp, child);
last_dest = m;
last_source = child;
if (m->mnt_master != dest_master) {
read_seqlock_excl(&mount_lock);
SET_MNT_MARK(m->mnt_master);
read_sequnlock_excl(&mount_lock);
}
hlist_add_head(&child->mnt_hash, list);
return 0;
} | 276 | True | 1 |
|
CVE-2016-7916 | False | False | False | True | AV:L/AC:M/Au:N/C:C/I:N/A:N | LOCAL | MEDIUM | NONE | COMPLETE | NONE | NONE | 4.7 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | LOCAL | LOW | NONE | REQUIRED | UNCHANGED | HIGH | NONE | NONE | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'https://bugzilla.kernel.org/show_bug.cgi?id=116461', 'name': 'https://bugzilla.kernel.org/show_bug.cgi?id=116461', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a73c9901a8794a50f950083c00ccf97d43b3', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a73c9901a8794a50f950083c00ccf97d43b3', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://forums.grsecurity.net/viewtopic.php?f=3&t=4363', 'name': 'https://forums.grsecurity.net/viewtopic.php?f=3&t=4363', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b3', 'name': 'https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43b3', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://source.android.com/security/bulletin/2016-11-01.html', 'name': 'http://source.android.com/security/bulletin/2016-11-01.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/94138', 'name': '94138', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-3159-2', 'name': 'USN-3159-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3159-1', 'name': 'USN-3159-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.3', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete.'}] | 2017-01-18T02:59Z | 2016-11-16T05:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Mathias Krause | 2016-05-05 16:22:26-07:00 | proc: prevent accessing /proc/<PID>/environ until it's ready
If /proc/<PID>/environ gets read before the envp[] array is fully set up
in create_{aout,elf,elf_fdpic,flat}_tables(), we might end up trying to
read more bytes than are actually written, as env_start will already be
set but env_end will still be zero, making the range calculation
underflow, allowing to read beyond the end of what has been written.
Fix this as it is done for /proc/<PID>/cmdline by testing env_end for
zero. It is, apparently, intentionally set last in create_*_tables().
This bug was found by the PaX size_overflow plugin that detected the
arithmetic underflow of 'this_len = env_end - (env_start + src)' when
env_end is still zero.
The expected consequence is that userland trying to access
/proc/<PID>/environ of a not yet fully set up process may get
inconsistent data as we're in the middle of copying in the environment
variables.
Fixes: https://forums.grsecurity.net/viewtopic.php?f=3&t=4363
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=116461
Signed-off-by: Mathias Krause <[email protected]>
Cc: Emese Revfy <[email protected]>
Cc: Pax Team <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Mateusz Guzik <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: Cyrill Gorcunov <[email protected]>
Cc: Jarod Wilson <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 8148a73c9901a8794a50f950083c00ccf97d43b3 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | environ_read | environ_read( struct file * file , char __user * buf , size_t count , loff_t * ppos) | ['file', 'buf', 'count', 'ppos'] | static ssize_t environ_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
char *page;
unsigned long src = *ppos;
int ret = 0;
struct mm_struct *mm = file->private_data;
unsigned long env_start, env_end;
if (!mm)
return 0;
page = (char *)__get_free_page(GFP_TEMPORARY);
if (!page)
return -ENOMEM;
ret = 0;
if (!atomic_inc_not_zero(&mm->mm_users))
goto free;
down_read(&mm->mmap_sem);
env_start = mm->env_start;
env_end = mm->env_end;
up_read(&mm->mmap_sem);
while (count > 0) {
size_t this_len, max_len;
int retval;
if (src >= (env_end - env_start))
break;
this_len = env_end - (env_start + src);
max_len = min_t(size_t, PAGE_SIZE, count);
this_len = min(max_len, this_len);
retval = access_remote_vm(mm, (env_start + src),
page, this_len, 0);
if (retval <= 0) {
ret = retval;
break;
}
if (copy_to_user(buf, page, retval)) {
ret = -EFAULT;
break;
}
ret += retval;
src += retval;
buf += retval;
count -= retval;
}
*ppos = src;
mmput(mm);
free:
free_page((unsigned long) page);
return ret;
} | 277 | True | 1 |
|
CVE-2016-4913 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99d825822eade8d827a1817357cbf3f889a552d6', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99d825822eade8d827a1817357cbf3f889a552d6', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/18/5', 'name': '[oss-security] 20160518 Re: CVE Request: Linux: information leak in Rock Ridge Extensions to iso9660 -- fs/isofs/rock.c', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'https://github.com/torvalds/linux/commit/99d825822eade8d827a1817357cbf3f889a552d6', 'name': 'https://github.com/torvalds/linux/commit/99d825822eade8d827a1817357cbf3f889a552d6', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1337528', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1337528', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/18/3', 'name': '[oss-security] 20160518 CVE Request: Linux: information leak in Rock Ridge Extensions to iso9660 -- fs/isofs/rock.c', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-2', 'name': 'USN-3017-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-2', 'name': 'USN-3018-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-4', 'name': 'USN-3016-4', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-1', 'name': 'USN-3016-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-2', 'name': 'USN-3016-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3016-3', 'name': 'USN-3016-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3018-1', 'name': 'USN-3018-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3019-1', 'name': 'USN-3019-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-3', 'name': 'USN-3017-3', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3020-1', 'name': 'USN-3020-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3017-1', 'name': 'USN-3017-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3021-1', 'name': 'USN-3021-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3021-2', 'name': 'USN-3021-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/90730', 'name': '90730', 'refsource': 'BID', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2018:3096', 'name': 'RHSA-2018:3096', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2018:3083', 'name': 'RHSA-2018:3083', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The get_rock_ridge_filename function in fs/isofs/rock.c in the Linux kernel before 4.5.5 mishandles NM (aka alternate name) entries containing \\0 characters, which allows local users to obtain sensitive information from kernel memory or possibly have unspecified other impact via a crafted isofs filesystem.'}] | 2019-12-27T16:08Z | 2016-05-23T10:59Z | Exposure of Sensitive Information to an Unauthorized Actor | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:
private, personal information, such as personal messages, financial data, health records, geographic location, or contact details
system status and environment, such as the operating system and installed packages
business secrets and intellectual property
network status and configuration
the product's own code or internal state
metadata, e.g. logging of connections or message headers
indirect information, such as a discrepancy between two internal operations that can be observed by an outsider
Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:
the product's own users
people or organizations whose information is created or used by the product, even if they are not direct product users
the product's administrators, including the admins of the system(s) and/or networks on which the product operates
the developer
Information exposures can occur in different ways:
the code explicitly inserts sensitive information into resources or messages that are intentionally made accessible to unauthorized actors, but should not contain the information - i.e., the information should have been "scrubbed" or "sanitized"
a different weakness or mistake indirectly inserts the sensitive information into resources, such as a web script error revealing the full system path of the program.
the code manages resources that intentionally contain sensitive information, but the resources are unintentionally made accessible to unauthorized actors. In this case, the information exposure is resultant - i.e., a different weakness enabled the access to the information in the first place.
It is common practice to describe any loss of confidentiality as an "information exposure," but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.
| https://cwe.mitre.org/data/definitions/200.html | 0 | Al Viro | 2016-05-05 16:25:35-04:00 | get_rock_ridge_filename(): handle malformed NM entries
Payloads of NM entries are not supposed to contain NUL. When we run
into such, only the part prior to the first NUL goes into the
concatenation (i.e. the directory entry name being encoded by a bunch
of NM entries). We do stop when the amount collected so far + the
claimed amount in the current NM entry exceed 254. So far, so good,
but what we return as the total length is the sum of *claimed*
sizes, not the actual amount collected. And that can grow pretty
large - not unlimited, since you'd need to put CE entries in
between to be able to get more than the maximum that could be
contained in one isofs directory entry / continuation chunk and
we are stop once we'd encountered 32 CEs, but you can get about 8Kb
easily. And that's what will be passed to readdir callback as the
name length. 8Kb __copy_to_user() from a buffer allocated by
__get_free_page()
Cc: [email protected] # 0.98pl6+ (yes, really)
Signed-off-by: Al Viro <[email protected]> | 99d825822eade8d827a1817357cbf3f889a552d6 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | get_rock_ridge_filename | get_rock_ridge_filename( struct iso_directory_record * de , char * retname , struct inode * inode) | ['de', 'retname', 'inode'] | int get_rock_ridge_filename(struct iso_directory_record *de,
char *retname, struct inode *inode)
{
struct rock_state rs;
struct rock_ridge *rr;
int sig;
int retnamlen = 0;
int truncate = 0;
int ret = 0;
if (!ISOFS_SB(inode->i_sb)->s_rock)
return 0;
*retname = 0;
init_rock_state(&rs, inode);
setup_rock_ridge(de, inode, &rs);
repeat:
while (rs.len > 2) { /* There may be one byte for padding somewhere */
rr = (struct rock_ridge *)rs.chr;
/*
* Ignore rock ridge info if rr->len is out of range, but
* don't return -EIO because that would make the file
* invisible.
*/
if (rr->len < 3)
goto out; /* Something got screwed up here */
sig = isonum_721(rs.chr);
if (rock_check_overflow(&rs, sig))
goto eio;
rs.chr += rr->len;
rs.len -= rr->len;
/*
* As above, just ignore the rock ridge info if rr->len
* is bogus.
*/
if (rs.len < 0)
goto out; /* Something got screwed up here */
switch (sig) {
case SIG('R', 'R'):
if ((rr->u.RR.flags[0] & RR_NM) == 0)
goto out;
break;
case SIG('S', 'P'):
if (check_sp(rr, inode))
goto out;
break;
case SIG('C', 'E'):
rs.cont_extent = isonum_733(rr->u.CE.extent);
rs.cont_offset = isonum_733(rr->u.CE.offset);
rs.cont_size = isonum_733(rr->u.CE.size);
break;
case SIG('N', 'M'):
if (truncate)
break;
if (rr->len < 5)
break;
/*
* If the flags are 2 or 4, this indicates '.' or '..'.
* We don't want to do anything with this, because it
* screws up the code that calls us. We don't really
* care anyways, since we can just use the non-RR
* name.
*/
if (rr->u.NM.flags & 6)
break;
if (rr->u.NM.flags & ~1) {
printk("Unsupported NM flag settings (%d)\n",
rr->u.NM.flags);
break;
}
if ((strlen(retname) + rr->len - 5) >= 254) {
truncate = 1;
break;
}
strncat(retname, rr->u.NM.name, rr->len - 5);
retnamlen += rr->len - 5;
break;
case SIG('R', 'E'):
kfree(rs.buffer);
return -1;
default:
break;
}
}
ret = rock_continue(&rs);
if (ret == 0)
goto repeat;
if (ret == 1)
return retnamlen; /* If 0, this file did not have a NM field */
out:
kfree(rs.buffer);
return ret;
eio:
ret = -EIO;
goto out;
} | 473 | True | 1 |
|
CVE-2016-6198 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | NONE | NONE | HIGH | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7', 'name': 'https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1355654', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1355654', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca', 'name': 'https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/07/11/8', 'name': '[oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel', 'refsource': 'MLIST', 'tags': ['Exploit', 'Mailing List', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/91709', 'name': '91709', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036273', 'name': '1036273', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2584.html', 'name': 'RHSA-2016:2584', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-284'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:oracle:vm_server:3.4:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c.'}] | 2019-12-27T16:08Z | 2016-08-06T20:59Z | Improper Access Control | The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Access control involves the use of several protection mechanisms such as:
Authentication (proving the identity of an actor)
Authorization (ensuring that a given actor can access a resource), and
Accountability (tracking of activities that were performed)
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc.
There are two distinct behaviors that can introduce access control weaknesses:
Specification: incorrect privileges, permissions, ownership, etc. are explicitly specified for either the user or the resource (for example, setting a password file to be world-writable, or giving administrator capabilities to a guest user). This action could be performed by the program or the administrator.
Enforcement: the mechanism contains errors that prevent it from properly enforcing the specified access control requirements (e.g., allowing the user to specify their own privileges, or allowing a syntactically-incorrect ACL to produce insecure settings). This problem occurs within the program itself, in that it does not actually enforce the intended security policy that the administrator specifies.
| https://cwe.mitre.org/data/definitions/284.html | 0 | Miklos Szeredi | 2016-05-11 01:16:37+02:00 | vfs: add vfs_select_inode() helper
Signed-off-by: Miklos Szeredi <[email protected]>
Cc: <[email protected]> # v4.2+ | 54d5ca871e72f2bb172ec9323497f01cd5091ec7 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | vfs_open | vfs_open( const struct path * path , struct file * file , const struct cred * cred) | ['path', 'file', 'cred'] | int vfs_open(const struct path *path, struct file *file,
const struct cred *cred)
{
struct dentry *dentry = path->dentry;
struct inode *inode = dentry->d_inode;
file->f_path = *path;
if (dentry->d_flags & DCACHE_OP_SELECT_INODE) {
inode = dentry->d_op->d_select_inode(dentry, file->f_flags);
if (IS_ERR(inode))
return PTR_ERR(inode);
}
return do_dentry_open(file, inode, NULL, cred);
} | 96 | True | 1 |
|
CVE-2016-6198 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | NONE | NONE | HIGH | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54d5ca871e72f2bb172ec9323497f01cd5091ec7', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7', 'name': 'https://github.com/torvalds/linux/commit/54d5ca871e72f2bb172ec9323497f01cd5091ec7', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1355654', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1355654', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca', 'name': 'https://github.com/torvalds/linux/commit/9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/07/11/8', 'name': '[oss-security] 20160711 Re: cvs request: local DoS using rename syscall on overlayfs on top of xfs to crash the kernel - Linux kernel', 'refsource': 'MLIST', 'tags': ['Exploit', 'Mailing List', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/91709', 'name': '91709', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036273', 'name': '1036273', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2584.html', 'name': 'RHSA-2016:2584', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1875.html', 'name': 'RHSA-2016:1875', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1847.html', 'name': 'RHSA-2016:1847', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-284'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.4', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:oracle:vm_server:3.4:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c.'}] | 2019-12-27T16:08Z | 2016-08-06T20:59Z | Improper Access Control | The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Access control involves the use of several protection mechanisms such as:
Authentication (proving the identity of an actor)
Authorization (ensuring that a given actor can access a resource), and
Accountability (tracking of activities that were performed)
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc.
There are two distinct behaviors that can introduce access control weaknesses:
Specification: incorrect privileges, permissions, ownership, etc. are explicitly specified for either the user or the resource (for example, setting a password file to be world-writable, or giving administrator capabilities to a guest user). This action could be performed by the program or the administrator.
Enforcement: the mechanism contains errors that prevent it from properly enforcing the specified access control requirements (e.g., allowing the user to specify their own privileges, or allowing a syntactically-incorrect ACL to produce insecure settings). This problem occurs within the program itself, in that it does not actually enforce the intended security policy that the administrator specifies.
| https://cwe.mitre.org/data/definitions/284.html | 0 | Miklos Szeredi | 2016-05-11 01:16:37+02:00 | vfs: rename: check backing inode being equal
If a file is renamed to a hardlink of itself POSIX specifies that rename(2)
should do nothing and return success.
This condition is checked in vfs_rename(). However it won't detect hard
links on overlayfs where these are given separate inodes on the overlayfs
layer.
Overlayfs itself detects this condition and returns success without doing
anything, but then vfs_rename() will proceed as if this was a successful
rename (detach_mounts(), d_move()).
The correct thing to do is to detect this condition before even calling
into overlayfs. This patch does this by calling vfs_select_inode() to get
the underlying inodes.
Signed-off-by: Miklos Szeredi <[email protected]>
Cc: <[email protected]> # v4.2+ | 9409e22acdfc9153f88d9b1ed2bd2a5b34d2d3ca | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | vfs_rename | vfs_rename( struct inode * old_dir , struct dentry * old_dentry , struct inode * new_dir , struct dentry * new_dentry , struct inode ** delegated_inode , unsigned int flags) | ['old_dir', 'old_dentry', 'new_dir', 'new_dentry', 'delegated_inode', 'flags'] | int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
struct inode **delegated_inode, unsigned int flags)
{
int error;
bool is_dir = d_is_dir(old_dentry);
const unsigned char *old_name;
struct inode *source = old_dentry->d_inode;
struct inode *target = new_dentry->d_inode;
bool new_is_dir = false;
unsigned max_links = new_dir->i_sb->s_max_links;
if (source == target)
return 0;
error = may_delete(old_dir, old_dentry, is_dir);
if (error)
return error;
if (!target) {
error = may_create(new_dir, new_dentry);
} else {
new_is_dir = d_is_dir(new_dentry);
if (!(flags & RENAME_EXCHANGE))
error = may_delete(new_dir, new_dentry, is_dir);
else
error = may_delete(new_dir, new_dentry, new_is_dir);
}
if (error)
return error;
if (!old_dir->i_op->rename && !old_dir->i_op->rename2)
return -EPERM;
if (flags && !old_dir->i_op->rename2)
return -EINVAL;
/*
* If we are going to change the parent - check write permissions,
* we'll need to flip '..'.
*/
if (new_dir != old_dir) {
if (is_dir) {
error = inode_permission(source, MAY_WRITE);
if (error)
return error;
}
if ((flags & RENAME_EXCHANGE) && new_is_dir) {
error = inode_permission(target, MAY_WRITE);
if (error)
return error;
}
}
error = security_inode_rename(old_dir, old_dentry, new_dir, new_dentry,
flags);
if (error)
return error;
old_name = fsnotify_oldname_init(old_dentry->d_name.name);
dget(new_dentry);
if (!is_dir || (flags & RENAME_EXCHANGE))
lock_two_nondirectories(source, target);
else if (target)
inode_lock(target);
error = -EBUSY;
if (is_local_mountpoint(old_dentry) || is_local_mountpoint(new_dentry))
goto out;
if (max_links && new_dir != old_dir) {
error = -EMLINK;
if (is_dir && !new_is_dir && new_dir->i_nlink >= max_links)
goto out;
if ((flags & RENAME_EXCHANGE) && !is_dir && new_is_dir &&
old_dir->i_nlink >= max_links)
goto out;
}
if (is_dir && !(flags & RENAME_EXCHANGE) && target)
shrink_dcache_parent(new_dentry);
if (!is_dir) {
error = try_break_deleg(source, delegated_inode);
if (error)
goto out;
}
if (target && !new_is_dir) {
error = try_break_deleg(target, delegated_inode);
if (error)
goto out;
}
if (!old_dir->i_op->rename2) {
error = old_dir->i_op->rename(old_dir, old_dentry,
new_dir, new_dentry);
} else {
WARN_ON(old_dir->i_op->rename != NULL);
error = old_dir->i_op->rename2(old_dir, old_dentry,
new_dir, new_dentry, flags);
}
if (error)
goto out;
if (!(flags & RENAME_EXCHANGE) && target) {
if (is_dir)
target->i_flags |= S_DEAD;
dont_mount(new_dentry);
detach_mounts(new_dentry);
}
if (!(old_dir->i_sb->s_type->fs_flags & FS_RENAME_DOES_D_MOVE)) {
if (!(flags & RENAME_EXCHANGE))
d_move(old_dentry, new_dentry);
else
d_exchange(old_dentry, new_dentry);
}
out:
if (!is_dir || (flags & RENAME_EXCHANGE))
unlock_two_nondirectories(source, target);
else if (target)
inode_unlock(target);
dput(new_dentry);
if (!error) {
fsnotify_move(old_dir, new_dir, old_name, is_dir,
!(flags & RENAME_EXCHANGE) ? target : NULL, old_dentry);
if (flags & RENAME_EXCHANGE) {
fsnotify_move(new_dir, old_dir, old_dentry->d_name.name,
new_is_dir, NULL, new_dentry);
}
}
fsnotify_oldname_free(old_name);
return error;
} | 715 | True | 1 |
|
CVE-2016-0758 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1300257', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1300257', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/12/9', 'name': '[oss-security] 20160513 CVE-2016-0758 - Linux kernel - Flaw in ASN.1 DER decoder for x509 certificate DER files.', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=23c8a812dc3c621009e4f0e5342aa4e2ede1ceaa', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=23c8a812dc3c621009e4f0e5342aa4e2ede1ceaa', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/23c8a812dc3c621009e4f0e5342aa4e2ede1ceaa', 'name': 'https://github.com/torvalds/linux/commit/23c8a812dc3c621009e4f0e5342aa4e2ede1ceaa', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1033.html', 'name': 'RHSA-2016:1033', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1051.html', 'name': 'RHSA-2016:1051', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html', 'name': 'SUSE-SU-2016:1690', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://h20565.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158555', 'name': 'HPSBHF3548', 'refsource': 'HP', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1055.html', 'name': 'RHSA-2016:1055', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2979-4', 'name': 'USN-2979-4', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-10-01.html', 'name': 'http://source.android.com/security/bulletin/2016-10-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html', 'name': 'SUSE-SU-2016:2003', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html', 'name': 'SUSE-SU-2016:2011', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/90626', 'name': '90626', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.2:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.5.0', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Integer overflow in lib/asn1_decoder.c in the Linux kernel before 4.6 allows local users to gain privileges via crafted ASN.1 data.'}] | 2016-11-28T19:55Z | 2016-06-27T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | David Howells | 2016-02-23 11:03:12+00:00 | KEYS: Fix ASN.1 indefinite length object parsing
This fixes CVE-2016-0758.
In the ASN.1 decoder, when the length field of an ASN.1 value is extracted,
it isn't validated against the remaining amount of data before being added
to the cursor. With a sufficiently large size indicated, the check:
datalen - dp < 2
may then fail due to integer overflow.
Fix this by checking the length indicated against the amount of remaining
data in both places a definite length is determined.
Whilst we're at it, make the following changes:
(1) Check the maximum size of extended length does not exceed the capacity
of the variable it's being stored in (len) rather than the type that
variable is assumed to be (size_t).
(2) Compare the EOC tag to the symbolic constant ASN1_EOC rather than the
integer 0.
(3) To reduce confusion, move the initialisation of len outside of:
for (len = 0; n > 0; n--) {
since it doesn't have anything to do with the loop counter n.
Signed-off-by: David Howells <[email protected]>
Reviewed-by: Mimi Zohar <[email protected]>
Acked-by: David Woodhouse <[email protected]>
Acked-by: Peter Jones <[email protected]> | 23c8a812dc3c621009e4f0e5342aa4e2ede1ceaa | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | asn1_find_indefinite_length | asn1_find_indefinite_length( const unsigned char * data , size_t datalen , size_t * _dp , size_t * _len , const char ** _errmsg) | ['data', 'datalen', '_dp', '_len', '_errmsg'] | static int asn1_find_indefinite_length(const unsigned char *data, size_t datalen,
size_t *_dp, size_t *_len,
const char **_errmsg)
{
unsigned char tag, tmp;
size_t dp = *_dp, len, n;
int indef_level = 1;
next_tag:
if (unlikely(datalen - dp < 2)) {
if (datalen == dp)
goto missing_eoc;
goto data_overrun_error;
}
/* Extract a tag from the data */
tag = data[dp++];
if (tag == 0) {
/* It appears to be an EOC. */
if (data[dp++] != 0)
goto invalid_eoc;
if (--indef_level <= 0) {
*_len = dp - *_dp;
*_dp = dp;
return 0;
}
goto next_tag;
}
if (unlikely((tag & 0x1f) == ASN1_LONG_TAG)) {
do {
if (unlikely(datalen - dp < 2))
goto data_overrun_error;
tmp = data[dp++];
} while (tmp & 0x80);
}
/* Extract the length */
len = data[dp++];
if (len <= 0x7f) {
dp += len;
goto next_tag;
}
if (unlikely(len == ASN1_INDEFINITE_LENGTH)) {
/* Indefinite length */
if (unlikely((tag & ASN1_CONS_BIT) == ASN1_PRIM << 5))
goto indefinite_len_primitive;
indef_level++;
goto next_tag;
}
n = len - 0x80;
if (unlikely(n > sizeof(size_t) - 1))
goto length_too_long;
if (unlikely(n > datalen - dp))
goto data_overrun_error;
for (len = 0; n > 0; n--) {
len <<= 8;
len |= data[dp++];
}
dp += len;
goto next_tag;
length_too_long:
*_errmsg = "Unsupported length";
goto error;
indefinite_len_primitive:
*_errmsg = "Indefinite len primitive not permitted";
goto error;
invalid_eoc:
*_errmsg = "Invalid length EOC";
goto error;
data_overrun_error:
*_errmsg = "Data overrun error";
goto error;
missing_eoc:
*_errmsg = "Missing EOC in indefinite len cons";
error:
*_dp = dp;
return -1;
} | 366 | True | 1 |
|
CVE-2016-9754 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://source.android.com/security/bulletin/2017-01-01.html', 'name': 'https://source.android.com/security/bulletin/2017-01-01.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/59643d1535eb220668692a5359de22545af579f6', 'name': 'https://github.com/torvalds/linux/commit/59643d1535eb220668692a5359de22545af579f6', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59643d1535eb220668692a5359de22545af579f6', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59643d1535eb220668692a5359de22545af579f6', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/95278', 'name': '95278', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-190'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The ring_buffer_resize function in kernel/trace/ring_buffer.c in the profiling subsystem in the Linux kernel before 4.6.1 mishandles certain integer calculations, which allows local users to gain privileges by writing to the /sys/kernel/debug/tracing/buffer_size_kb file.'}] | 2017-01-07T03:00Z | 2017-01-05T11:59Z | Integer Overflow or Wraparound | The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. | An integer overflow or wraparound occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may wrap to become a very small or negative number. While this may be intended behavior in circumstances that rely on wrapping, it can have security consequences if the wrap is unexpected. This is especially the case if the integer overflow can be triggered using user-supplied inputs. This becomes security-critical when the result is used to control looping, make a security decision, or determine the offset or size in behaviors such as memory allocation, copying, concatenation, etc.
| https://cwe.mitre.org/data/definitions/190.html | 0 | Steven Rostedt (Red Hat) | 2016-05-13 09:34:12-04:00 | ring-buffer: Prevent overflow of size in ring_buffer_resize()
If the size passed to ring_buffer_resize() is greater than MAX_LONG - BUF_PAGE_SIZE
then the DIV_ROUND_UP() will return zero.
Here's the details:
# echo 18014398509481980 > /sys/kernel/debug/tracing/buffer_size_kb
tracing_entries_write() processes this and converts kb to bytes.
18014398509481980 << 10 = 18446744073709547520
and this is passed to ring_buffer_resize() as unsigned long size.
size = DIV_ROUND_UP(size, BUF_PAGE_SIZE);
Where DIV_ROUND_UP(a, b) is (a + b - 1)/b
BUF_PAGE_SIZE is 4080 and here
18446744073709547520 + 4080 - 1 = 18446744073709551599
where 18446744073709551599 is still smaller than 2^64
2^64 - 18446744073709551599 = 17
But now 18446744073709551599 / 4080 = 4521260802379792
and size = size * 4080 = 18446744073709551360
This is checked to make sure its still greater than 2 * 4080,
which it is.
Then we convert to the number of buffer pages needed.
nr_page = DIV_ROUND_UP(size, BUF_PAGE_SIZE)
but this time size is 18446744073709551360 and
2^64 - (18446744073709551360 + 4080 - 1) = -3823
Thus it overflows and the resulting number is less than 4080, which makes
3823 / 4080 = 0
an nr_pages is set to this. As we already checked against the minimum that
nr_pages may be, this causes the logic to fail as well, and we crash the
kernel.
There's no reason to have the two DIV_ROUND_UP() (that's just result of
historical code changes), clean up the code and fix this bug.
Cc: [email protected] # 3.5+
Fixes: 83f40318dab00 ("ring-buffer: Make removal of ring buffer pages atomic")
Signed-off-by: Steven Rostedt <[email protected]> | 59643d1535eb220668692a5359de22545af579f6 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ring_buffer_resize | ring_buffer_resize( struct ring_buffer * buffer , unsigned long size , int cpu_id) | ['buffer', 'size', 'cpu_id'] | int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size,
int cpu_id)
{
struct ring_buffer_per_cpu *cpu_buffer;
unsigned long nr_pages;
int cpu, err = 0;
/*
* Always succeed at resizing a non-existent buffer:
*/
if (!buffer)
return size;
/* Make sure the requested buffer exists */
if (cpu_id != RING_BUFFER_ALL_CPUS &&
!cpumask_test_cpu(cpu_id, buffer->cpumask))
return size;
size = DIV_ROUND_UP(size, BUF_PAGE_SIZE);
size *= BUF_PAGE_SIZE;
/* we need a minimum of two pages */
if (size < BUF_PAGE_SIZE * 2)
size = BUF_PAGE_SIZE * 2;
nr_pages = DIV_ROUND_UP(size, BUF_PAGE_SIZE);
/*
* Don't succeed if resizing is disabled, as a reader might be
* manipulating the ring buffer and is expecting a sane state while
* this is true.
*/
if (atomic_read(&buffer->resize_disabled))
return -EBUSY;
/* prevent another thread from changing buffer sizes */
mutex_lock(&buffer->mutex);
if (cpu_id == RING_BUFFER_ALL_CPUS) {
/* calculate the pages to update */
for_each_buffer_cpu(buffer, cpu) {
cpu_buffer = buffer->buffers[cpu];
cpu_buffer->nr_pages_to_update = nr_pages -
cpu_buffer->nr_pages;
/*
* nothing more to do for removing pages or no update
*/
if (cpu_buffer->nr_pages_to_update <= 0)
continue;
/*
* to add pages, make sure all new pages can be
* allocated without receiving ENOMEM
*/
INIT_LIST_HEAD(&cpu_buffer->new_pages);
if (__rb_allocate_pages(cpu_buffer->nr_pages_to_update,
&cpu_buffer->new_pages, cpu)) {
/* not enough memory for new pages */
err = -ENOMEM;
goto out_err;
}
}
get_online_cpus();
/*
* Fire off all the required work handlers
* We can't schedule on offline CPUs, but it's not necessary
* since we can change their buffer sizes without any race.
*/
for_each_buffer_cpu(buffer, cpu) {
cpu_buffer = buffer->buffers[cpu];
if (!cpu_buffer->nr_pages_to_update)
continue;
/* Can't run something on an offline CPU. */
if (!cpu_online(cpu)) {
rb_update_pages(cpu_buffer);
cpu_buffer->nr_pages_to_update = 0;
} else {
schedule_work_on(cpu,
&cpu_buffer->update_pages_work);
}
}
/* wait for all the updates to complete */
for_each_buffer_cpu(buffer, cpu) {
cpu_buffer = buffer->buffers[cpu];
if (!cpu_buffer->nr_pages_to_update)
continue;
if (cpu_online(cpu))
wait_for_completion(&cpu_buffer->update_done);
cpu_buffer->nr_pages_to_update = 0;
}
put_online_cpus();
} else {
/* Make sure this CPU has been intitialized */
if (!cpumask_test_cpu(cpu_id, buffer->cpumask))
goto out;
cpu_buffer = buffer->buffers[cpu_id];
if (nr_pages == cpu_buffer->nr_pages)
goto out;
cpu_buffer->nr_pages_to_update = nr_pages -
cpu_buffer->nr_pages;
INIT_LIST_HEAD(&cpu_buffer->new_pages);
if (cpu_buffer->nr_pages_to_update > 0 &&
__rb_allocate_pages(cpu_buffer->nr_pages_to_update,
&cpu_buffer->new_pages, cpu_id)) {
err = -ENOMEM;
goto out_err;
}
get_online_cpus();
/* Can't run something on an offline CPU. */
if (!cpu_online(cpu_id))
rb_update_pages(cpu_buffer);
else {
schedule_work_on(cpu_id,
&cpu_buffer->update_pages_work);
wait_for_completion(&cpu_buffer->update_done);
}
cpu_buffer->nr_pages_to_update = 0;
put_online_cpus();
}
out:
/*
* The ring buffer resize can happen with the ring buffer
* enabled, so that the update disturbs the tracing as little
* as possible. But if the buffer is disabled, we do not need
* to worry about that, and we can take the time to verify
* that the buffer is not corrupt.
*/
if (atomic_read(&buffer->record_disabled)) {
atomic_inc(&buffer->record_disabled);
/*
* Even though the buffer was disabled, we must make sure
* that it is truly disabled before calling rb_check_pages.
* There could have been a race between checking
* record_disable and incrementing it.
*/
synchronize_sched();
for_each_buffer_cpu(buffer, cpu) {
cpu_buffer = buffer->buffers[cpu];
rb_check_pages(cpu_buffer);
}
atomic_dec(&buffer->record_disabled);
}
mutex_unlock(&buffer->mutex);
return size;
out_err:
for_each_buffer_cpu(buffer, cpu) {
struct buffer_page *bpage, *tmp;
cpu_buffer = buffer->buffers[cpu];
cpu_buffer->nr_pages_to_update = 0;
if (list_empty(&cpu_buffer->new_pages))
continue;
list_for_each_entry_safe(bpage, tmp, &cpu_buffer->new_pages,
list) {
list_del_init(&bpage->list);
free_buffer_page(bpage);
}
}
mutex_unlock(&buffer->mutex);
return err;
} | 599 | True | 1 |
|
CVE-2016-9806 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520', 'name': 'https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1401502', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1401502', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/12/03/4', 'name': '[oss-security] 20161203 CVE Request: -- Linux kernel: double free in netlink_dump', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'http://lists.openwall.net/netdev/2016/05/15/69', 'name': '[netdev] 20160515 BUG: use-after-free in netlink_dump', 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/94653', 'name': '94653', 'refsource': 'BID', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-03-01.html', 'name': 'https://source.android.com/security/bulletin/2017-03-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1037968', 'name': '1037968', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}, {'lang': 'en', 'value': 'CWE-415'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.'}] | 2018-01-05T02:31Z | 2016-12-28T07:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Herbert Xu | 2016-05-16 17:28:16+08:00 | netlink: Fix dump skb leak/double free
When we free cb->skb after a dump, we do it after releasing the
lock. This means that a new dump could have started in the time
being and we'll end up freeing their skb instead of ours.
This patch saves the skb and module before we unlock so we free
the right memory.
Fixes: 16b304f3404f ("netlink: Eliminate kmalloc in netlink dump operation.")
Reported-by: Baozeng Ding <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Acked-by: Cong Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 92964c79b357efd980812c4de5c1fd2ec8bb5520 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | netlink_dump | netlink_dump( struct sock * sk) | ['sk'] | static int netlink_dump(struct sock *sk)
{
struct netlink_sock *nlk = nlk_sk(sk);
struct netlink_callback *cb;
struct sk_buff *skb = NULL;
struct nlmsghdr *nlh;
int len, err = -ENOBUFS;
int alloc_min_size;
int alloc_size;
mutex_lock(nlk->cb_mutex);
if (!nlk->cb_running) {
err = -EINVAL;
goto errout_skb;
}
if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
goto errout_skb;
/* NLMSG_GOODSIZE is small to avoid high order allocations being
* required, but it makes sense to _attempt_ a 16K bytes allocation
* to reduce number of system calls on dump operations, if user
* ever provided a big enough buffer.
*/
cb = &nlk->cb;
alloc_min_size = max_t(int, cb->min_dump_alloc, NLMSG_GOODSIZE);
if (alloc_min_size < nlk->max_recvmsg_len) {
alloc_size = nlk->max_recvmsg_len;
skb = alloc_skb(alloc_size, GFP_KERNEL |
__GFP_NOWARN | __GFP_NORETRY);
}
if (!skb) {
alloc_size = alloc_min_size;
skb = alloc_skb(alloc_size, GFP_KERNEL);
}
if (!skb)
goto errout_skb;
/* Trim skb to allocated size. User is expected to provide buffer as
* large as max(min_dump_alloc, 16KiB (mac_recvmsg_len capped at
* netlink_recvmsg())). dump will pack as many smaller messages as
* could fit within the allocated skb. skb is typically allocated
* with larger space than required (could be as much as near 2x the
* requested size with align to next power of 2 approach). Allowing
* dump to use the excess space makes it difficult for a user to have a
* reasonable static buffer based on the expected largest dump of a
* single netdev. The outcome is MSG_TRUNC error.
*/
skb_reserve(skb, skb_tailroom(skb) - alloc_size);
netlink_skb_set_owner_r(skb, sk);
len = cb->dump(skb, cb);
if (len > 0) {
mutex_unlock(nlk->cb_mutex);
if (sk_filter(sk, skb))
kfree_skb(skb);
else
__netlink_sendskb(sk, skb);
return 0;
}
nlh = nlmsg_put_answer(skb, cb, NLMSG_DONE, sizeof(len), NLM_F_MULTI);
if (!nlh)
goto errout_skb;
nl_dump_check_consistent(cb, nlh);
memcpy(nlmsg_data(nlh), &len, sizeof(len));
if (sk_filter(sk, skb))
kfree_skb(skb);
else
__netlink_sendskb(sk, skb);
if (cb->done)
cb->done(cb);
nlk->cb_running = false;
mutex_unlock(nlk->cb_mutex);
module_put(cb->module);
consume_skb(cb->skb);
return 0;
errout_skb:
mutex_unlock(nlk->cb_mutex);
kfree_skb(skb);
return err;
} | 369 | True | 1 |
|
CVE-2016-9806 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520', 'name': 'https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1401502', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1401502', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/12/03/4', 'name': '[oss-security] 20161203 CVE Request: -- Linux kernel: double free in netlink_dump', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'http://lists.openwall.net/netdev/2016/05/15/69', 'name': '[netdev] 20160515 BUG: use-after-free in netlink_dump', 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/94653', 'name': '94653', 'refsource': 'BID', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-03-01.html', 'name': 'https://source.android.com/security/bulletin/2017-03-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1037968', 'name': '1037968', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}, {'lang': 'en', 'value': 'CWE-415'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.'}] | 2018-01-05T02:31Z | 2016-12-28T07:59Z | Double Free | The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. | When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.
| https://cwe.mitre.org/data/definitions/415.html | 0 | Herbert Xu | 2016-05-16 17:28:16+08:00 | netlink: Fix dump skb leak/double free
When we free cb->skb after a dump, we do it after releasing the
lock. This means that a new dump could have started in the time
being and we'll end up freeing their skb instead of ours.
This patch saves the skb and module before we unlock so we free
the right memory.
Fixes: 16b304f3404f ("netlink: Eliminate kmalloc in netlink dump operation.")
Reported-by: Baozeng Ding <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Acked-by: Cong Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 92964c79b357efd980812c4de5c1fd2ec8bb5520 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | netlink_dump | netlink_dump( struct sock * sk) | ['sk'] | static int netlink_dump(struct sock *sk)
{
struct netlink_sock *nlk = nlk_sk(sk);
struct netlink_callback *cb;
struct sk_buff *skb = NULL;
struct nlmsghdr *nlh;
int len, err = -ENOBUFS;
int alloc_min_size;
int alloc_size;
mutex_lock(nlk->cb_mutex);
if (!nlk->cb_running) {
err = -EINVAL;
goto errout_skb;
}
if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf)
goto errout_skb;
/* NLMSG_GOODSIZE is small to avoid high order allocations being
* required, but it makes sense to _attempt_ a 16K bytes allocation
* to reduce number of system calls on dump operations, if user
* ever provided a big enough buffer.
*/
cb = &nlk->cb;
alloc_min_size = max_t(int, cb->min_dump_alloc, NLMSG_GOODSIZE);
if (alloc_min_size < nlk->max_recvmsg_len) {
alloc_size = nlk->max_recvmsg_len;
skb = alloc_skb(alloc_size, GFP_KERNEL |
__GFP_NOWARN | __GFP_NORETRY);
}
if (!skb) {
alloc_size = alloc_min_size;
skb = alloc_skb(alloc_size, GFP_KERNEL);
}
if (!skb)
goto errout_skb;
/* Trim skb to allocated size. User is expected to provide buffer as
* large as max(min_dump_alloc, 16KiB (mac_recvmsg_len capped at
* netlink_recvmsg())). dump will pack as many smaller messages as
* could fit within the allocated skb. skb is typically allocated
* with larger space than required (could be as much as near 2x the
* requested size with align to next power of 2 approach). Allowing
* dump to use the excess space makes it difficult for a user to have a
* reasonable static buffer based on the expected largest dump of a
* single netdev. The outcome is MSG_TRUNC error.
*/
skb_reserve(skb, skb_tailroom(skb) - alloc_size);
netlink_skb_set_owner_r(skb, sk);
len = cb->dump(skb, cb);
if (len > 0) {
mutex_unlock(nlk->cb_mutex);
if (sk_filter(sk, skb))
kfree_skb(skb);
else
__netlink_sendskb(sk, skb);
return 0;
}
nlh = nlmsg_put_answer(skb, cb, NLMSG_DONE, sizeof(len), NLM_F_MULTI);
if (!nlh)
goto errout_skb;
nl_dump_check_consistent(cb, nlh);
memcpy(nlmsg_data(nlh), &len, sizeof(len));
if (sk_filter(sk, skb))
kfree_skb(skb);
else
__netlink_sendskb(sk, skb);
if (cb->done)
cb->done(cb);
nlk->cb_running = false;
mutex_unlock(nlk->cb_mutex);
module_put(cb->module);
consume_skb(cb->skb);
return 0;
errout_skb:
mutex_unlock(nlk->cb_mutex);
kfree_skb(skb);
return err;
} | 369 | True | 1 |
|
CVE-2016-3713 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:C | LOCAL | LOW | NONE | PARTIAL | NONE | COMPLETE | 5.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | HIGH | 7.1 | HIGH | 1.8 | 5.2 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1332139', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1332139', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/16/2', 'name': '[oss-security] 20160516 CVE-2016-3713 Linux kernel: kvm: OOB r/w access issue with MSR 0x2F8', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0dc5', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0dc5', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5', 'name': 'https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-284'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.'}] | 2016-06-27T17:57Z | 2016-06-27T10:59Z | Improper Access Control | The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Access control involves the use of several protection mechanisms such as:
Authentication (proving the identity of an actor)
Authorization (ensuring that a given actor can access a resource), and
Accountability (tracking of activities that were performed)
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc.
There are two distinct behaviors that can introduce access control weaknesses:
Specification: incorrect privileges, permissions, ownership, etc. are explicitly specified for either the user or the resource (for example, setting a password file to be world-writable, or giving administrator capabilities to a guest user). This action could be performed by the program or the administrator.
Enforcement: the mechanism contains errors that prevent it from properly enforcing the specified access control requirements (e.g., allowing the user to specify their own privileges, or allowing a syntactically-incorrect ACL to produce insecure settings). This problem occurs within the program itself, in that it does not actually enforce the intended security policy that the administrator specifies.
| https://cwe.mitre.org/data/definitions/284.html | 0 | Andy Honig | 2016-05-17 17:41:47+02:00 | KVM: MTRR: remove MSR 0x2f8
MSR 0x2f8 accessed the 124th Variable Range MTRR ever since MTRR support
was introduced by 9ba075a664df ("KVM: MTRR support").
0x2f8 became harmful when 910a6aae4e2e ("KVM: MTRR: exactly define the
size of variable MTRRs") shrinked the array of VR MTRRs from 256 to 8,
which made access to index 124 out of bounds. The surrounding code only
WARNs in this situation, thus the guest gained a limited read/write
access to struct kvm_arch_vcpu.
0x2f8 is not a valid VR MTRR MSR, because KVM has/advertises only 16 VR
MTRR MSRs, 0x200-0x20f. Every VR MTRR is set up using two MSRs, 0x2f8
was treated as a PHYSBASE and 0x2f9 would be its PHYSMASK, but 0x2f9 was
not implemented in KVM, therefore 0x2f8 could never do anything useful
and getting rid of it is safe.
This fixes CVE-2016-3713.
Fixes: 910a6aae4e2e ("KVM: MTRR: exactly define the size of variable MTRRs")
Cc: [email protected]
Reported-by: David Matlack <[email protected]>
Signed-off-by: Andy Honig <[email protected]>
Signed-off-by: Radim Krčmář <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]> | 9842df62004f366b9fed2423e24df10542ee0dc5 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | msr_mtrr_valid | msr_mtrr_valid( unsigned msr) | ['msr'] | static bool msr_mtrr_valid(unsigned msr)
{
switch (msr) {
case 0x200 ... 0x200 + 2 * KVM_NR_VAR_MTRR - 1:
case MSR_MTRRfix64K_00000:
case MSR_MTRRfix16K_80000:
case MSR_MTRRfix16K_A0000:
case MSR_MTRRfix4K_C0000:
case MSR_MTRRfix4K_C8000:
case MSR_MTRRfix4K_D0000:
case MSR_MTRRfix4K_D8000:
case MSR_MTRRfix4K_E0000:
case MSR_MTRRfix4K_E8000:
case MSR_MTRRfix4K_F0000:
case MSR_MTRRfix4K_F8000:
case MSR_MTRRdefType:
case MSR_IA32_CR_PAT:
return true;
case 0x2f8:
return true;
}
return false;
} | 75 | True | 1 |
|
CVE-2016-4440 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f', 'name': 'https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/20/2', 'name': '[oss-security] 20160520 CVE-2016-4440 Kernel: kvm: vmx: incorrect state update leading to MSR access', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1337806', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1337806', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.3', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'arch/x86/kvm/vmx.c in the Linux kernel through 4.6.3 mishandles the APICv on/off state, which allows guest OS users to obtain direct APIC MSR access on the host OS, and consequently cause a denial of service (host OS crash) or possibly execute arbitrary code on the host OS, via x2APIC mode.'}] | 2016-06-27T17:59Z | 2016-06-27T10:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Roman Kagan | 2016-05-18 17:48:20+03:00 | kvm:vmx: more complete state update on APICv on/off
The function to update APICv on/off state (in particular, to deactivate
it when enabling Hyper-V SynIC) is incomplete: it doesn't adjust
APICv-related fields among secondary processor-based VM-execution
controls. As a result, Windows 2012 guests get stuck when SynIC-based
auto-EOI interrupt intersected with e.g. an IPI in the guest.
In addition, the MSR intercept bitmap isn't updated every time "virtualize
x2APIC mode" is toggled. This path can only be triggered by a malicious
guest, because Windows didn't use x2APIC but rather their own synthetic
APIC access MSRs; however a guest running in a SynIC-enabled VM could
switch to x2APIC and thus obtain direct access to host APIC MSRs
(CVE-2016-4440).
The patch fixes those omissions.
Signed-off-by: Roman Kagan <[email protected]>
Reported-by: Steve Rutherford <[email protected]>
Reported-by: Yang Zhang <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]> | 3ce424e45411cf5a13105e0386b6ecf6eeb4f66f | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | hardware_setup | hardware_setup( void) | ['void'] | static __init int hardware_setup(void)
{
int r = -ENOMEM, i, msr;
rdmsrl_safe(MSR_EFER, &host_efer);
for (i = 0; i < ARRAY_SIZE(vmx_msr_index); ++i)
kvm_define_shared_msr(i, vmx_msr_index[i]);
vmx_io_bitmap_a = (unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_io_bitmap_a)
return r;
vmx_io_bitmap_b = (unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_io_bitmap_b)
goto out;
vmx_msr_bitmap_legacy = (unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_msr_bitmap_legacy)
goto out1;
vmx_msr_bitmap_legacy_x2apic =
(unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_msr_bitmap_legacy_x2apic)
goto out2;
vmx_msr_bitmap_longmode = (unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_msr_bitmap_longmode)
goto out3;
vmx_msr_bitmap_longmode_x2apic =
(unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_msr_bitmap_longmode_x2apic)
goto out4;
if (nested) {
vmx_msr_bitmap_nested =
(unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_msr_bitmap_nested)
goto out5;
}
vmx_vmread_bitmap = (unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_vmread_bitmap)
goto out6;
vmx_vmwrite_bitmap = (unsigned long *)__get_free_page(GFP_KERNEL);
if (!vmx_vmwrite_bitmap)
goto out7;
memset(vmx_vmread_bitmap, 0xff, PAGE_SIZE);
memset(vmx_vmwrite_bitmap, 0xff, PAGE_SIZE);
/*
* Allow direct access to the PC debug port (it is often used for I/O
* delays, but the vmexits simply slow things down).
*/
memset(vmx_io_bitmap_a, 0xff, PAGE_SIZE);
clear_bit(0x80, vmx_io_bitmap_a);
memset(vmx_io_bitmap_b, 0xff, PAGE_SIZE);
memset(vmx_msr_bitmap_legacy, 0xff, PAGE_SIZE);
memset(vmx_msr_bitmap_longmode, 0xff, PAGE_SIZE);
if (nested)
memset(vmx_msr_bitmap_nested, 0xff, PAGE_SIZE);
if (setup_vmcs_config(&vmcs_config) < 0) {
r = -EIO;
goto out8;
}
if (boot_cpu_has(X86_FEATURE_NX))
kvm_enable_efer_bits(EFER_NX);
if (!cpu_has_vmx_vpid())
enable_vpid = 0;
if (!cpu_has_vmx_shadow_vmcs())
enable_shadow_vmcs = 0;
if (enable_shadow_vmcs)
init_vmcs_shadow_fields();
if (!cpu_has_vmx_ept() ||
!cpu_has_vmx_ept_4levels()) {
enable_ept = 0;
enable_unrestricted_guest = 0;
enable_ept_ad_bits = 0;
}
if (!cpu_has_vmx_ept_ad_bits())
enable_ept_ad_bits = 0;
if (!cpu_has_vmx_unrestricted_guest())
enable_unrestricted_guest = 0;
if (!cpu_has_vmx_flexpriority())
flexpriority_enabled = 0;
/*
* set_apic_access_page_addr() is used to reload apic access
* page upon invalidation. No need to do anything if not
* using the APIC_ACCESS_ADDR VMCS field.
*/
if (!flexpriority_enabled)
kvm_x86_ops->set_apic_access_page_addr = NULL;
if (!cpu_has_vmx_tpr_shadow())
kvm_x86_ops->update_cr8_intercept = NULL;
if (enable_ept && !cpu_has_vmx_ept_2m_page())
kvm_disable_largepages();
if (!cpu_has_vmx_ple())
ple_gap = 0;
if (!cpu_has_vmx_apicv())
enable_apicv = 0;
if (cpu_has_vmx_tsc_scaling()) {
kvm_has_tsc_control = true;
kvm_max_tsc_scaling_ratio = KVM_VMX_TSC_MULTIPLIER_MAX;
kvm_tsc_scaling_ratio_frac_bits = 48;
}
vmx_disable_intercept_for_msr(MSR_FS_BASE, false);
vmx_disable_intercept_for_msr(MSR_GS_BASE, false);
vmx_disable_intercept_for_msr(MSR_KERNEL_GS_BASE, true);
vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_CS, false);
vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_ESP, false);
vmx_disable_intercept_for_msr(MSR_IA32_SYSENTER_EIP, false);
vmx_disable_intercept_for_msr(MSR_IA32_BNDCFGS, true);
memcpy(vmx_msr_bitmap_legacy_x2apic,
vmx_msr_bitmap_legacy, PAGE_SIZE);
memcpy(vmx_msr_bitmap_longmode_x2apic,
vmx_msr_bitmap_longmode, PAGE_SIZE);
set_bit(0, vmx_vpid_bitmap); /* 0 is reserved for host */
if (enable_apicv) {
for (msr = 0x800; msr <= 0x8ff; msr++)
vmx_disable_intercept_msr_read_x2apic(msr);
/* According SDM, in x2apic mode, the whole id reg is used.
* But in KVM, it only use the highest eight bits. Need to
* intercept it */
vmx_enable_intercept_msr_read_x2apic(0x802);
/* TMCCT */
vmx_enable_intercept_msr_read_x2apic(0x839);
/* TPR */
vmx_disable_intercept_msr_write_x2apic(0x808);
/* EOI */
vmx_disable_intercept_msr_write_x2apic(0x80b);
/* SELF-IPI */
vmx_disable_intercept_msr_write_x2apic(0x83f);
}
if (enable_ept) {
kvm_mmu_set_mask_ptes(0ull,
(enable_ept_ad_bits) ? VMX_EPT_ACCESS_BIT : 0ull,
(enable_ept_ad_bits) ? VMX_EPT_DIRTY_BIT : 0ull,
0ull, VMX_EPT_EXECUTABLE_MASK);
ept_set_mmio_spte_mask();
kvm_enable_tdp();
} else
kvm_disable_tdp();
update_ple_window_actual_max();
/*
* Only enable PML when hardware supports PML feature, and both EPT
* and EPT A/D bit features are enabled -- PML depends on them to work.
*/
if (!enable_ept || !enable_ept_ad_bits || !cpu_has_vmx_pml())
enable_pml = 0;
if (!enable_pml) {
kvm_x86_ops->slot_enable_log_dirty = NULL;
kvm_x86_ops->slot_disable_log_dirty = NULL;
kvm_x86_ops->flush_log_dirty = NULL;
kvm_x86_ops->enable_log_dirty_pt_masked = NULL;
}
kvm_set_posted_intr_wakeup_handler(wakeup_handler);
return alloc_kvm_area();
out8:
free_page((unsigned long)vmx_vmwrite_bitmap);
out7:
free_page((unsigned long)vmx_vmread_bitmap);
out6:
if (nested)
free_page((unsigned long)vmx_msr_bitmap_nested);
out5:
free_page((unsigned long)vmx_msr_bitmap_longmode_x2apic);
out4:
free_page((unsigned long)vmx_msr_bitmap_longmode);
out3:
free_page((unsigned long)vmx_msr_bitmap_legacy_x2apic);
out2:
free_page((unsigned long)vmx_msr_bitmap_legacy);
out1:
free_page((unsigned long)vmx_io_bitmap_b);
out:
free_page((unsigned long)vmx_io_bitmap_a);
return r;
} | 845 | True | 1 |
||
CVE-2016-4440 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f', 'name': 'https://github.com/torvalds/linux/commit/3ce424e45411cf5a13105e0386b6ecf6eeb4f66f', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/05/20/2', 'name': '[oss-security] 20160520 CVE-2016-4440 Kernel: kvm: vmx: incorrect state update leading to MSR access', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1337806', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1337806', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3ce424e45411cf5a13105e0386b6ecf6eeb4f66f', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.3', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'arch/x86/kvm/vmx.c in the Linux kernel through 4.6.3 mishandles the APICv on/off state, which allows guest OS users to obtain direct APIC MSR access on the host OS, and consequently cause a denial of service (host OS crash) or possibly execute arbitrary code on the host OS, via x2APIC mode.'}] | 2016-06-27T17:59Z | 2016-06-27T10:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Roman Kagan | 2016-05-18 17:48:20+03:00 | kvm:vmx: more complete state update on APICv on/off
The function to update APICv on/off state (in particular, to deactivate
it when enabling Hyper-V SynIC) is incomplete: it doesn't adjust
APICv-related fields among secondary processor-based VM-execution
controls. As a result, Windows 2012 guests get stuck when SynIC-based
auto-EOI interrupt intersected with e.g. an IPI in the guest.
In addition, the MSR intercept bitmap isn't updated every time "virtualize
x2APIC mode" is toggled. This path can only be triggered by a malicious
guest, because Windows didn't use x2APIC but rather their own synthetic
APIC access MSRs; however a guest running in a SynIC-enabled VM could
switch to x2APIC and thus obtain direct access to host APIC MSRs
(CVE-2016-4440).
The patch fixes those omissions.
Signed-off-by: Roman Kagan <[email protected]>
Reported-by: Steve Rutherford <[email protected]>
Reported-by: Yang Zhang <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]> | 3ce424e45411cf5a13105e0386b6ecf6eeb4f66f | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | vmx_set_msr_bitmap | vmx_set_msr_bitmap( struct kvm_vcpu * vcpu) | ['vcpu'] | static void vmx_set_msr_bitmap(struct kvm_vcpu *vcpu)
{
unsigned long *msr_bitmap;
if (is_guest_mode(vcpu))
msr_bitmap = vmx_msr_bitmap_nested;
else if (vcpu->arch.apic_base & X2APIC_ENABLE) {
if (is_long_mode(vcpu))
msr_bitmap = vmx_msr_bitmap_longmode_x2apic;
else
msr_bitmap = vmx_msr_bitmap_legacy_x2apic;
} else {
if (is_long_mode(vcpu))
msr_bitmap = vmx_msr_bitmap_longmode;
else
msr_bitmap = vmx_msr_bitmap_legacy;
}
vmcs_write64(MSR_BITMAP, __pa(msr_bitmap));
} | 83 | True | 1 |
||
CVE-2016-5243 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:N | LOCAL | LOW | NONE | PARTIAL | NONE | NONE | 2.1 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | NONE | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5d2be1422e02ccd697ccfcd45c85b4a26e6178e2', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5d2be1422e02ccd697ccfcd45c85b4a26e6178e2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://patchwork.ozlabs.org/patch/629100/', 'name': 'https://patchwork.ozlabs.org/patch/629100/', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/06/03/4', 'name': '[oss-security] 20160603 Re: CVE Request: tipc: an infoleak in tipc_nl_compat_link_dump', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/5d2be1422e02ccd697ccfcd45c85b4a26e6178e2', 'name': 'https://github.com/torvalds/linux/commit/5d2be1422e02ccd697ccfcd45c85b4a26e6178e2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1343335', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1343335', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3052-1', 'name': 'USN-3052-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91334', 'name': '91334', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3056-1', 'name': 'USN-3056-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3055-1', 'name': 'USN-3055-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3057-1', 'name': 'USN-3057-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3053-1', 'name': 'USN-3053-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3051-1', 'name': 'USN-3051-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3054-1', 'name': 'USN-3054-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.3', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The tipc_nl_compat_link_dump function in net/tipc/netlink_compat.c in the Linux kernel through 4.6.3 does not properly copy a certain string, which allows local users to obtain sensitive information from kernel stack memory by reading a Netlink message.'}] | 2016-11-28T20:23Z | 2016-06-27T10:59Z | Exposure of Sensitive Information to an Unauthorized Actor | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:
private, personal information, such as personal messages, financial data, health records, geographic location, or contact details
system status and environment, such as the operating system and installed packages
business secrets and intellectual property
network status and configuration
the product's own code or internal state
metadata, e.g. logging of connections or message headers
indirect information, such as a discrepancy between two internal operations that can be observed by an outsider
Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:
the product's own users
people or organizations whose information is created or used by the product, even if they are not direct product users
the product's administrators, including the admins of the system(s) and/or networks on which the product operates
the developer
Information exposures can occur in different ways:
the code explicitly inserts sensitive information into resources or messages that are intentionally made accessible to unauthorized actors, but should not contain the information - i.e., the information should have been "scrubbed" or "sanitized"
a different weakness or mistake indirectly inserts the sensitive information into resources, such as a web script error revealing the full system path of the program.
the code manages resources that intentionally contain sensitive information, but the resources are unintentionally made accessible to unauthorized actors. In this case, the information exposure is resultant - i.e., a different weakness enabled the access to the information in the first place.
It is common practice to describe any loss of confidentiality as an "information exposure," but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.
| https://cwe.mitre.org/data/definitions/200.html | 0 | Kangjie Lu | 2016-06-02 04:04:56-04:00 | tipc: fix an infoleak in tipc_nl_compat_link_dump
link_info.str is a char array of size 60. Memory after the NULL
byte is not initialized. Sending the whole object out can cause
a leak.
Signed-off-by: Kangjie Lu <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 5d2be1422e02ccd697ccfcd45c85b4a26e6178e2 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | tipc_nl_compat_link_dump | tipc_nl_compat_link_dump( struct tipc_nl_compat_msg * msg , struct nlattr ** attrs) | ['msg', 'attrs'] | static int tipc_nl_compat_link_dump(struct tipc_nl_compat_msg *msg,
struct nlattr **attrs)
{
struct nlattr *link[TIPC_NLA_LINK_MAX + 1];
struct tipc_link_info link_info;
int err;
if (!attrs[TIPC_NLA_LINK])
return -EINVAL;
err = nla_parse_nested(link, TIPC_NLA_LINK_MAX, attrs[TIPC_NLA_LINK],
NULL);
if (err)
return err;
link_info.dest = nla_get_flag(link[TIPC_NLA_LINK_DEST]);
link_info.up = htonl(nla_get_flag(link[TIPC_NLA_LINK_UP]));
strcpy(link_info.str, nla_data(link[TIPC_NLA_LINK_NAME]));
return tipc_add_tlv(msg->rep, TIPC_TLV_LINK_INFO,
&link_info, sizeof(link_info));
} | 126 | True | 1 |
|
CVE-2016-1583 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/2f36db71009304b3f0b95afacd8eba1f9f046b87', 'name': 'https://github.com/torvalds/linux/commit/2f36db71009304b3f0b95afacd8eba1f9f046b87', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d', 'name': 'https://github.com/torvalds/linux/commit/f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f36db71009304b3f0b95afacd8eba1f9f046b87', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f36db71009304b3f0b95afacd8eba1f9f046b87', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1344721', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1344721', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'VDB Entry']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f5364c150aa645b3d7daa21b5c0b9feaa1c9cd6d', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'name': 'https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/06/22/1', 'name': '[oss-security] 20160622 Re: [vs-plain] Linux kernel stack overflow via ecryptfs and /proc/$pid/environ', 'refsource': 'MLIST', 'tags': ['Third Party Advisory']}, {'url': 'https://bugs.chromium.org/p/project-zero/issues/detail?id=836', 'name': 'https://bugs.chromium.org/p/project-zero/issues/detail?id=836', 'refsource': 'MISC', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2016/06/10/8', 'name': '[oss-security] 20160610 [vs-plain] Linux kernel stack overflow via ecryptfs and /proc/$pid/environ', 'refsource': 'MLIST', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2997-1', 'name': 'USN-2997-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2996-1', 'name': 'USN-2996-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3002-1', 'name': 'USN-3002-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3001-1', 'name': 'USN-3001-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3004-1', 'name': 'USN-3004-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3000-1', 'name': 'USN-3000-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2998-1', 'name': 'USN-2998-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3003-1', 'name': 'USN-3003-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'https://www.exploit-db.com/exploits/39992/', 'name': '39992', 'refsource': 'EXPLOIT-DB', 'tags': ['Exploit', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://packetstormsecurity.com/files/137560/Linux-ecryptfs-Stack-Overflow.html', 'name': 'http://packetstormsecurity.com/files/137560/Linux-ecryptfs-Stack-Overflow.html', 'refsource': 'MISC', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-3005-1', 'name': 'USN-3005-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3006-1', 'name': 'USN-3006-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2999-1', 'name': 'USN-2999-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00027.html', 'name': 'SUSE-SU-2016:1596', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3007-1', 'name': 'USN-3007-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html', 'name': 'SUSE-SU-2016:1672', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html', 'name': 'SUSE-SU-2016:1696', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3008-1', 'name': 'USN-3008-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html', 'name': 'SUSE-SU-2016:1995', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00014.html', 'name': 'SUSE-SU-2016:2000', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91157', 'name': '91157', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html', 'name': 'openSUSE-SU-2016:1641', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2760', 'name': 'RHSA-2017:2760', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2766.html', 'name': 'RHSA-2016:2766', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2124.html', 'name': 'RHSA-2016:2124', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/f0fe970df3838c202ef6c07a4c2b36838ef0a88b', 'name': 'https://github.com/torvalds/linux/commit/f0fe970df3838c202ef6c07a4c2b36838ef0a88b', 'refsource': 'MISC', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling.'}] | 2018-12-06T22:29Z | 2016-06-27T10:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Jann Horn | 2016-06-01 11:55:06+02:00 | ecryptfs: forbid opening files without mmap handler
This prevents users from triggering a stack overflow through a recursive
invocation of pagefault handling that involves mapping procfs files into
virtual memory.
Signed-off-by: Jann Horn <[email protected]>
Acked-by: Tyler Hicks <[email protected]>
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]> | 2f36db71009304b3f0b95afacd8eba1f9f046b87 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ecryptfs_privileged_open | ecryptfs_privileged_open( struct file ** lower_file , struct dentry * lower_dentry , struct vfsmount * lower_mnt , const struct cred * cred) | ['lower_file', 'lower_dentry', 'lower_mnt', 'cred'] | int ecryptfs_privileged_open(struct file **lower_file,
struct dentry *lower_dentry,
struct vfsmount *lower_mnt,
const struct cred *cred)
{
struct ecryptfs_open_req req;
int flags = O_LARGEFILE;
int rc = 0;
init_completion(&req.done);
req.lower_file = lower_file;
req.path.dentry = lower_dentry;
req.path.mnt = lower_mnt;
/* Corresponding dput() and mntput() are done when the
* lower file is fput() when all eCryptfs files for the inode are
* released. */
flags |= IS_RDONLY(d_inode(lower_dentry)) ? O_RDONLY : O_RDWR;
(*lower_file) = dentry_open(&req.path, flags, cred);
if (!IS_ERR(*lower_file))
goto out;
if ((flags & O_ACCMODE) == O_RDONLY) {
rc = PTR_ERR((*lower_file));
goto out;
}
mutex_lock(&ecryptfs_kthread_ctl.mux);
if (ecryptfs_kthread_ctl.flags & ECRYPTFS_KTHREAD_ZOMBIE) {
rc = -EIO;
mutex_unlock(&ecryptfs_kthread_ctl.mux);
printk(KERN_ERR "%s: We are in the middle of shutting down; "
"aborting privileged request to open lower file\n",
__func__);
goto out;
}
list_add_tail(&req.kthread_ctl_list, &ecryptfs_kthread_ctl.req_list);
mutex_unlock(&ecryptfs_kthread_ctl.mux);
wake_up(&ecryptfs_kthread_ctl.wait);
wait_for_completion(&req.done);
if (IS_ERR(*lower_file))
rc = PTR_ERR(*lower_file);
out:
return rc;
} | 238 | True | 1 |
|
CVE-2016-4470 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | NONE | NONE | HIGH | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1341716', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1341716', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/38327424b40bcebe2de92d07312c89360ac9229a', 'name': 'https://github.com/torvalds/linux/commit/38327424b40bcebe2de92d07312c89360ac9229a', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/06/15/11', 'name': '[oss-security] 20160615 CVE-2016-4470: Linux kernel Uninitialized variable in request_key handling user controlled kfree().', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1532.html', 'name': 'RHSA-2016:1532', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1541.html', 'name': 'RHSA-2016:1541', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1539.html', 'name': 'RHSA-2016:1539', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html', 'name': 'SUSE-SU-2016:1937', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'name': 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'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1657.html', 'name': 'RHSA-2016:1657', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00016.html', 'name': 'SUSE-SU-2016:2002', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00012.html', 'name': 'SUSE-SU-2016:1998', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3055-1', 'name': 'USN-3055-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3050-1', 'name': 'USN-3050-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html', 'name': 'SUSE-SU-2016:1961', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00026.html', 'name': 'SUSE-SU-2016:2014', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00019.html', 'name': 'SUSE-SU-2016:2006', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3049-1', 'name': 'USN-3049-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3053-1', 'name': 'USN-3053-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00020.html', 'name': 'SUSE-SU-2016:2007', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html', 'name': 'SUSE-SU-2016:1985', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html', 'name': 'SUSE-SU-2016:2010', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00013.html', 'name': 'SUSE-SU-2016:1999', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html', 'name': 'SUSE-SU-2016:2001', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html', 'name': 'SUSE-SU-2016:1994', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3056-1', 'name': 'USN-3056-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html', 'name': 'SUSE-SU-2016:2003', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html', 'name': 'SUSE-SU-2016:2011', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3057-1', 'name': 'USN-3057-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00018.html', 'name': 'SUSE-SU-2016:2005', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00021.html', 'name': 'SUSE-SU-2016:2009', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3051-1', 'name': 'USN-3051-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3054-1', 'name': 'USN-3054-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2133.html', 'name': 'RHSA-2016:2133', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2128.html', 'name': 'RHSA-2016:2128', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2076.html', 'name': 'RHSA-2016:2076', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2074.html', 'name': 'RHSA-2016:2074', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2006.html', 'name': 'RHSA-2016:2006', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:5.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_for_real_time:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command.'}] | 2021-07-15T19:16Z | 2016-06-27T10:59Z | Other | NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Dan Carpenter | 2016-06-16 15:48:57+01:00 | KEYS: potential uninitialized variable
If __key_link_begin() failed then "edit" would be uninitialized. I've
added a check to fix that.
This allows a random user to crash the kernel, though it's quite
difficult to achieve. There are three ways it can be done as the user
would have to cause an error to occur in __key_link():
(1) Cause the kernel to run out of memory. In practice, this is difficult
to achieve without ENOMEM cropping up elsewhere and aborting the
attempt.
(2) Revoke the destination keyring between the keyring ID being looked up
and it being tested for revocation. In practice, this is difficult to
time correctly because the KEYCTL_REJECT function can only be used
from the request-key upcall process. Further, users can only make use
of what's in /sbin/request-key.conf, though this does including a
rejection debugging test - which means that the destination keyring
has to be the caller's session keyring in practice.
(3) Have just enough key quota available to create a key, a new session
keyring for the upcall and a link in the session keyring, but not then
sufficient quota to create a link in the nominated destination keyring
so that it fails with EDQUOT.
The bug can be triggered using option (3) above using something like the
following:
echo 80 >/proc/sys/kernel/keys/root_maxbytes
keyctl request2 user debug:fred negate @t
The above sets the quota to something much lower (80) to make the bug
easier to trigger, but this is dependent on the system. Note also that
the name of the keyring created contains a random number that may be
between 1 and 10 characters in size, so may throw the test off by
changing the amount of quota used.
Assuming the failure occurs, something like the following will be seen:
kfree_debugcheck: out of range ptr 6b6b6b6b6b6b6b68h
------------[ cut here ]------------
kernel BUG at ../mm/slab.c:2821!
...
RIP: 0010:[<ffffffff811600f9>] kfree_debugcheck+0x20/0x25
RSP: 0018:ffff8804014a7de8 EFLAGS: 00010092
RAX: 0000000000000034 RBX: 6b6b6b6b6b6b6b68 RCX: 0000000000000000
RDX: 0000000000040001 RSI: 00000000000000f6 RDI: 0000000000000300
RBP: ffff8804014a7df0 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8804014a7e68 R11: 0000000000000054 R12: 0000000000000202
R13: ffffffff81318a66 R14: 0000000000000000 R15: 0000000000000001
...
Call Trace:
kfree+0xde/0x1bc
assoc_array_cancel_edit+0x1f/0x36
__key_link_end+0x55/0x63
key_reject_and_link+0x124/0x155
keyctl_reject_key+0xb6/0xe0
keyctl_negate_key+0x10/0x12
SyS_keyctl+0x9f/0xe7
do_syscall_64+0x63/0x13a
entry_SYSCALL64_slow_path+0x25/0x25
Fixes: f70e2e06196a ('KEYS: Do preallocation for __key_link()')
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: David Howells <[email protected]>
cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]> | 38327424b40bcebe2de92d07312c89360ac9229a | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | key_reject_and_link | key_reject_and_link( struct key * key , unsigned timeout , unsigned error , struct key * keyring , struct key * authkey) | ['key', 'timeout', 'error', 'keyring', 'authkey'] | int key_reject_and_link(struct key *key,
unsigned timeout,
unsigned error,
struct key *keyring,
struct key *authkey)
{
struct assoc_array_edit *edit;
struct timespec now;
int ret, awaken, link_ret = 0;
key_check(key);
key_check(keyring);
awaken = 0;
ret = -EBUSY;
if (keyring) {
if (keyring->restrict_link)
return -EPERM;
link_ret = __key_link_begin(keyring, &key->index_key, &edit);
}
mutex_lock(&key_construction_mutex);
/* can't instantiate twice */
if (!test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {
/* mark the key as being negatively instantiated */
atomic_inc(&key->user->nikeys);
key->reject_error = -error;
smp_wmb();
set_bit(KEY_FLAG_NEGATIVE, &key->flags);
set_bit(KEY_FLAG_INSTANTIATED, &key->flags);
now = current_kernel_time();
key->expiry = now.tv_sec + timeout;
key_schedule_gc(key->expiry + key_gc_delay);
if (test_and_clear_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags))
awaken = 1;
ret = 0;
/* and link it into the destination keyring */
if (keyring && link_ret == 0)
__key_link(key, &edit);
/* disable the authorisation key */
if (authkey)
key_revoke(authkey);
}
mutex_unlock(&key_construction_mutex);
if (keyring)
__key_link_end(keyring, &key->index_key, edit);
/* wake up anyone waiting for a key to be constructed */
if (awaken)
wake_up_bit(&key->flags, KEY_FLAG_USER_CONSTRUCT);
return ret == 0 ? link_ret : ret;
} | 270 | True | 1 |
|
CVE-2016-5829 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/93a2001bdfd5376c3dc2158653034c20392d15c5', 'name': 'https://github.com/torvalds/linux/commit/93a2001bdfd5376c3dc2158653034c20392d15c5', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/06/26/2', 'name': '[oss-security] 20160626 Re: CVE Request: Linux kernel HID: hiddev buffer overflows', 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93a2001bdfd5376c3dc2158653034c20392d15c5', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93a2001bdfd5376c3dc2158653034c20392d15c5', 'refsource': 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'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html', 'name': 'openSUSE-SU-2016:2184', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html', 'name': 'SUSE-SU-2016:2180', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91450', 'name': '91450', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3072-1', 'name': 'USN-3072-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html', 'name': 'SUSE-SU-2016:2174', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-4', 'name': 'USN-3070-4', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html', 'name': 'SUSE-SU-2016:2177', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-1', 'name': 'USN-3070-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html', 'name': 'SUSE-SU-2016:2105', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html', 'name': 'SUSE-SU-2016:2018', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3071-2', 'name': 'USN-3071-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2584.html', 'name': 'RHSA-2016:2584', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2006.html', 'name': 'RHSA-2016:2006', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12:sp1:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Multiple heap-based buffer overflows in the hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c in the Linux kernel through 4.6.3 allow local users to cause a denial of service or possibly have unspecified other impact via a crafted (1) HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call.'}] | 2018-01-05T02:31Z | 2016-06-27T10:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Scott Bauer | 2016-06-23 08:59:47-06:00 | HID: hiddev: validate num_values for HIDIOCGUSAGES, HIDIOCSUSAGES commands
This patch validates the num_values parameter from userland during the
HIDIOCGUSAGES and HIDIOCSUSAGES commands. Previously, if the report id was set
to HID_REPORT_ID_UNKNOWN, we would fail to validate the num_values parameter
leading to a heap overflow.
Cc: [email protected]
Signed-off-by: Scott Bauer <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]> | 93a2001bdfd5376c3dc2158653034c20392d15c5 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | hiddev_ioctl_usage | hiddev_ioctl_usage( struct hiddev * hiddev , unsigned int cmd , void __user * user_arg) | ['hiddev', 'cmd', 'user_arg'] | static noinline int hiddev_ioctl_usage(struct hiddev *hiddev, unsigned int cmd, void __user *user_arg)
{
struct hid_device *hid = hiddev->hid;
struct hiddev_report_info rinfo;
struct hiddev_usage_ref_multi *uref_multi = NULL;
struct hiddev_usage_ref *uref;
struct hid_report *report;
struct hid_field *field;
int i;
uref_multi = kmalloc(sizeof(struct hiddev_usage_ref_multi), GFP_KERNEL);
if (!uref_multi)
return -ENOMEM;
uref = &uref_multi->uref;
if (cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) {
if (copy_from_user(uref_multi, user_arg,
sizeof(*uref_multi)))
goto fault;
} else {
if (copy_from_user(uref, user_arg, sizeof(*uref)))
goto fault;
}
switch (cmd) {
case HIDIOCGUCODE:
rinfo.report_type = uref->report_type;
rinfo.report_id = uref->report_id;
if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
goto inval;
if (uref->field_index >= report->maxfield)
goto inval;
field = report->field[uref->field_index];
if (uref->usage_index >= field->maxusage)
goto inval;
uref->usage_code = field->usage[uref->usage_index].hid;
if (copy_to_user(user_arg, uref, sizeof(*uref)))
goto fault;
goto goodreturn;
default:
if (cmd != HIDIOCGUSAGE &&
cmd != HIDIOCGUSAGES &&
uref->report_type == HID_REPORT_TYPE_INPUT)
goto inval;
if (uref->report_id == HID_REPORT_ID_UNKNOWN) {
field = hiddev_lookup_usage(hid, uref);
if (field == NULL)
goto inval;
} else {
rinfo.report_type = uref->report_type;
rinfo.report_id = uref->report_id;
if ((report = hiddev_lookup_report(hid, &rinfo)) == NULL)
goto inval;
if (uref->field_index >= report->maxfield)
goto inval;
field = report->field[uref->field_index];
if (cmd == HIDIOCGCOLLECTIONINDEX) {
if (uref->usage_index >= field->maxusage)
goto inval;
} else if (uref->usage_index >= field->report_count)
goto inval;
else if ((cmd == HIDIOCGUSAGES || cmd == HIDIOCSUSAGES) &&
(uref_multi->num_values > HID_MAX_MULTI_USAGES ||
uref->usage_index + uref_multi->num_values > field->report_count))
goto inval;
}
switch (cmd) {
case HIDIOCGUSAGE:
uref->value = field->value[uref->usage_index];
if (copy_to_user(user_arg, uref, sizeof(*uref)))
goto fault;
goto goodreturn;
case HIDIOCSUSAGE:
field->value[uref->usage_index] = uref->value;
goto goodreturn;
case HIDIOCGCOLLECTIONINDEX:
i = field->usage[uref->usage_index].collection_index;
kfree(uref_multi);
return i;
case HIDIOCGUSAGES:
for (i = 0; i < uref_multi->num_values; i++)
uref_multi->values[i] =
field->value[uref->usage_index + i];
if (copy_to_user(user_arg, uref_multi,
sizeof(*uref_multi)))
goto fault;
goto goodreturn;
case HIDIOCSUSAGES:
for (i = 0; i < uref_multi->num_values; i++)
field->value[uref->usage_index + i] =
uref_multi->values[i];
goto goodreturn;
}
goodreturn:
kfree(uref_multi);
return 0;
fault:
kfree(uref_multi);
return -EFAULT;
inval:
kfree(uref_multi);
return -EINVAL;
}
} | 649 | True | 1 |
|
CVE-2016-1237 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:N/A:N | LOCAL | LOW | NONE | COMPLETE | NONE | NONE | 4.9 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | NONE | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1350845', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1350845', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/06/25/2', 'name': "[oss-security] 20160625 Linux CVE-2016-1237: nfsd: any user can set a file's ACL over NFS and grant access to it", 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4', 'name': 'https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3070-2', 'name': 'USN-3070-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91456', 'name': '91456', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-1', 'name': 'USN-3070-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3053-1', 'name': 'USN-3053-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-3', 'name': 'USN-3070-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-4', 'name': 'USN-3070-4', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-284'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.3', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.'}] | 2016-11-28T19:58Z | 2016-06-29T14:10Z | Improper Access Control | The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Access control involves the use of several protection mechanisms such as:
Authentication (proving the identity of an actor)
Authorization (ensuring that a given actor can access a resource), and
Accountability (tracking of activities that were performed)
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc.
There are two distinct behaviors that can introduce access control weaknesses:
Specification: incorrect privileges, permissions, ownership, etc. are explicitly specified for either the user or the resource (for example, setting a password file to be world-writable, or giving administrator capabilities to a guest user). This action could be performed by the program or the administrator.
Enforcement: the mechanism contains errors that prevent it from properly enforcing the specified access control requirements (e.g., allowing the user to specify their own privileges, or allowing a syntactically-incorrect ACL to produce insecure settings). This problem occurs within the program itself, in that it does not actually enforce the intended security policy that the administrator specifies.
| https://cwe.mitre.org/data/definitions/284.html | 0 | Ben Hutchings | 2016-06-22 19:43:35+01:00 | nfsd: check permissions when setting ACLs
Use set_posix_acl, which includes proper permission checks, instead of
calling ->set_acl directly. Without this anyone may be able to grant
themselves permissions to a file by setting the ACL.
Lock the inode to make the new checks atomic with respect to set_acl.
(Also, nfsd was the only caller of set_acl not locking the inode, so I
suspect this may fix other races.)
This also simplifies the code, and ensures our ACLs are checked by
posix_acl_valid.
The permission checks and the inode locking were lost with commit
4ac7249e, which changed nfsd to use the set_acl inode operation directly
instead of going through xattr handlers.
Reported-by: David Sinquin <[email protected]>
[[email protected]: use set_posix_acl]
Fixes: 4ac7249e
Cc: Christoph Hellwig <[email protected]>
Cc: Al Viro <[email protected]>
Cc: [email protected]
Signed-off-by: J. Bruce Fields <[email protected]> | 999653786df6954a31044528ac3f7a5dadca08f4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | nfsacld_proc_setacl | nfsacld_proc_setacl( struct svc_rqst * rqstp , struct nfsd3_setaclargs * argp , struct nfsd_attrstat * resp) | ['rqstp', 'argp', 'resp'] | static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
struct nfsd3_setaclargs *argp,
struct nfsd_attrstat *resp)
{
struct inode *inode;
svc_fh *fh;
__be32 nfserr = 0;
int error;
dprintk("nfsd: SETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
fh = fh_copy(&resp->fh, &argp->fh);
nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
if (nfserr)
goto out;
inode = d_inode(fh->fh_dentry);
if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
error = -EOPNOTSUPP;
goto out_errno;
}
error = fh_want_write(fh);
if (error)
goto out_errno;
error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
if (error)
goto out_drop_write;
error = inode->i_op->set_acl(inode, argp->acl_default,
ACL_TYPE_DEFAULT);
if (error)
goto out_drop_write;
fh_drop_write(fh);
nfserr = fh_getattr(fh, &resp->stat);
out:
/* argp->acl_{access,default} may have been allocated in
nfssvc_decode_setaclargs. */
posix_acl_release(argp->acl_access);
posix_acl_release(argp->acl_default);
return nfserr;
out_drop_write:
fh_drop_write(fh);
out_errno:
nfserr = nfserrno(error);
goto out;
} | 238 | True | 1 |
|
CVE-2016-1237 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:N/A:N | LOCAL | LOW | NONE | COMPLETE | NONE | NONE | 4.9 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | NONE | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1350845', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1350845', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/06/25/2', 'name': "[oss-security] 20160625 Linux CVE-2016-1237: nfsd: any user can set a file's ACL over NFS and grant access to it", 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4', 'name': 'https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3070-2', 'name': 'USN-3070-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91456', 'name': '91456', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-1', 'name': 'USN-3070-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3053-1', 'name': 'USN-3053-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-3', 'name': 'USN-3070-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-4', 'name': 'USN-3070-4', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-284'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.3', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.'}] | 2016-11-28T19:58Z | 2016-06-29T14:10Z | Improper Access Control | The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Access control involves the use of several protection mechanisms such as:
Authentication (proving the identity of an actor)
Authorization (ensuring that a given actor can access a resource), and
Accountability (tracking of activities that were performed)
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc.
There are two distinct behaviors that can introduce access control weaknesses:
Specification: incorrect privileges, permissions, ownership, etc. are explicitly specified for either the user or the resource (for example, setting a password file to be world-writable, or giving administrator capabilities to a guest user). This action could be performed by the program or the administrator.
Enforcement: the mechanism contains errors that prevent it from properly enforcing the specified access control requirements (e.g., allowing the user to specify their own privileges, or allowing a syntactically-incorrect ACL to produce insecure settings). This problem occurs within the program itself, in that it does not actually enforce the intended security policy that the administrator specifies.
| https://cwe.mitre.org/data/definitions/284.html | 0 | Ben Hutchings | 2016-06-22 19:43:35+01:00 | nfsd: check permissions when setting ACLs
Use set_posix_acl, which includes proper permission checks, instead of
calling ->set_acl directly. Without this anyone may be able to grant
themselves permissions to a file by setting the ACL.
Lock the inode to make the new checks atomic with respect to set_acl.
(Also, nfsd was the only caller of set_acl not locking the inode, so I
suspect this may fix other races.)
This also simplifies the code, and ensures our ACLs are checked by
posix_acl_valid.
The permission checks and the inode locking were lost with commit
4ac7249e, which changed nfsd to use the set_acl inode operation directly
instead of going through xattr handlers.
Reported-by: David Sinquin <[email protected]>
[[email protected]: use set_posix_acl]
Fixes: 4ac7249e
Cc: Christoph Hellwig <[email protected]>
Cc: Al Viro <[email protected]>
Cc: [email protected]
Signed-off-by: J. Bruce Fields <[email protected]> | 999653786df6954a31044528ac3f7a5dadca08f4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | nfsd3_proc_setacl | nfsd3_proc_setacl( struct svc_rqst * rqstp , struct nfsd3_setaclargs * argp , struct nfsd3_attrstat * resp) | ['rqstp', 'argp', 'resp'] | static __be32 nfsd3_proc_setacl(struct svc_rqst * rqstp,
struct nfsd3_setaclargs *argp,
struct nfsd3_attrstat *resp)
{
struct inode *inode;
svc_fh *fh;
__be32 nfserr = 0;
int error;
fh = fh_copy(&resp->fh, &argp->fh);
nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
if (nfserr)
goto out;
inode = d_inode(fh->fh_dentry);
if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
error = -EOPNOTSUPP;
goto out_errno;
}
error = fh_want_write(fh);
if (error)
goto out_errno;
error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
if (error)
goto out_drop_write;
error = inode->i_op->set_acl(inode, argp->acl_default,
ACL_TYPE_DEFAULT);
out_drop_write:
fh_drop_write(fh);
out_errno:
nfserr = nfserrno(error);
out:
/* argp->acl_{access,default} may have been allocated in
nfs3svc_decode_setaclargs. */
posix_acl_release(argp->acl_access);
posix_acl_release(argp->acl_default);
RETURN_STATUS(nfserr);
} | 200 | True | 1 |
|
CVE-2016-1237 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:N/A:N | LOCAL | LOW | NONE | COMPLETE | NONE | NONE | 4.9 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | NONE | NONE | 5.5 | MEDIUM | 1.8 | 3.6 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1350845', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1350845', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/06/25/2', 'name': "[oss-security] 20160625 Linux CVE-2016-1237: nfsd: any user can set a file's ACL over NFS and grant access to it", 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4', 'name': 'https://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-3070-2', 'name': 'USN-3070-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91456', 'name': '91456', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-1', 'name': 'USN-3070-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3053-1', 'name': 'USN-3053-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.debian.org/security/2016/dsa-3607', 'name': 'DSA-3607', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-3', 'name': 'USN-3070-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-4', 'name': 'USN-3070-4', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-284'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.3', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.'}] | 2016-11-28T19:58Z | 2016-06-29T14:10Z | Improper Access Control | The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Access control involves the use of several protection mechanisms such as:
Authentication (proving the identity of an actor)
Authorization (ensuring that a given actor can access a resource), and
Accountability (tracking of activities that were performed)
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc.
There are two distinct behaviors that can introduce access control weaknesses:
Specification: incorrect privileges, permissions, ownership, etc. are explicitly specified for either the user or the resource (for example, setting a password file to be world-writable, or giving administrator capabilities to a guest user). This action could be performed by the program or the administrator.
Enforcement: the mechanism contains errors that prevent it from properly enforcing the specified access control requirements (e.g., allowing the user to specify their own privileges, or allowing a syntactically-incorrect ACL to produce insecure settings). This problem occurs within the program itself, in that it does not actually enforce the intended security policy that the administrator specifies.
| https://cwe.mitre.org/data/definitions/284.html | 0 | Ben Hutchings | 2016-06-22 19:43:35+01:00 | nfsd: check permissions when setting ACLs
Use set_posix_acl, which includes proper permission checks, instead of
calling ->set_acl directly. Without this anyone may be able to grant
themselves permissions to a file by setting the ACL.
Lock the inode to make the new checks atomic with respect to set_acl.
(Also, nfsd was the only caller of set_acl not locking the inode, so I
suspect this may fix other races.)
This also simplifies the code, and ensures our ACLs are checked by
posix_acl_valid.
The permission checks and the inode locking were lost with commit
4ac7249e, which changed nfsd to use the set_acl inode operation directly
instead of going through xattr handlers.
Reported-by: David Sinquin <[email protected]>
[[email protected]: use set_posix_acl]
Fixes: 4ac7249e
Cc: Christoph Hellwig <[email protected]>
Cc: Al Viro <[email protected]>
Cc: [email protected]
Signed-off-by: J. Bruce Fields <[email protected]> | 999653786df6954a31044528ac3f7a5dadca08f4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | nfsd4_set_nfs4_acl | nfsd4_set_nfs4_acl( struct svc_rqst * rqstp , struct svc_fh * fhp , struct nfs4_acl * acl) | ['rqstp', 'fhp', 'acl'] | nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct nfs4_acl *acl)
{
__be32 error;
int host_error;
struct dentry *dentry;
struct inode *inode;
struct posix_acl *pacl = NULL, *dpacl = NULL;
unsigned int flags = 0;
/* Get inode */
error = fh_verify(rqstp, fhp, 0, NFSD_MAY_SATTR);
if (error)
return error;
dentry = fhp->fh_dentry;
inode = d_inode(dentry);
if (!inode->i_op->set_acl || !IS_POSIXACL(inode))
return nfserr_attrnotsupp;
if (S_ISDIR(inode->i_mode))
flags = NFS4_ACL_DIR;
host_error = nfs4_acl_nfsv4_to_posix(acl, &pacl, &dpacl, flags);
if (host_error == -EINVAL)
return nfserr_attrnotsupp;
if (host_error < 0)
goto out_nfserr;
host_error = inode->i_op->set_acl(inode, pacl, ACL_TYPE_ACCESS);
if (host_error < 0)
goto out_release;
if (S_ISDIR(inode->i_mode)) {
host_error = inode->i_op->set_acl(inode, dpacl,
ACL_TYPE_DEFAULT);
}
out_release:
posix_acl_release(pacl);
posix_acl_release(dpacl);
out_nfserr:
if (host_error == -EOPNOTSUPP)
return nfserr_attrnotsupp;
else
return nfserrno(host_error);
} | 232 | True | 1 |
|
CVE-2016-6156 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:P | LOCAL | MEDIUM | NONE | NONE | NONE | PARTIAL | 1.9 | CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | LOCAL | HIGH | NONE | NONE | UNCHANGED | NONE | NONE | HIGH | 5.1 | MEDIUM | 1.4 | 3.6 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1353490', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1353490', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096cdc6f52225835ff503f987a0d68ef770bb78e', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=096cdc6f52225835ff503f987a0d68ef770bb78e', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://bugzilla.kernel.org/show_bug.cgi?id=120131', 'name': 'https://bugzilla.kernel.org/show_bug.cgi?id=120131', 'refsource': 'MISC', 'tags': ['Issue Tracking']}, {'url': 'http://seclists.org/bugtraq/2016/Jul/20', 'name': '20160704 [CVE-2016-6156] Double-Fetch Vulnerability in Linux-4.6/drivers/platform/chrome/cros_ec_dev.c', 'refsource': 'BUGTRAQ', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://github.com/torvalds/linux/commit/096cdc6f52225835ff503f987a0d68ef770bb78e', 'name': 'https://github.com/torvalds/linux/commit/096cdc6f52225835ff503f987a0d68ef770bb78e', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.securityfocus.com/bid/91553', 'name': '91553', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.6', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the ec_device_ioctl_xcmd function in drivers/platform/chrome/cros_ec_dev.c in the Linux kernel before 4.7 allows local users to cause a denial of service (out-of-bounds array access) by changing a certain size value, aka a "double fetch" vulnerability.'}] | 2016-11-28T20:30Z | 2016-08-06T20:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Dan Carpenter | 2016-06-21 16:58:46+03:00 | platform/chrome: cros_ec_dev - double fetch bug in ioctl
We verify "u_cmd.outsize" and "u_cmd.insize" but we need to make sure
that those values have not changed between the two copy_from_user()
calls. Otherwise it could lead to a buffer overflow.
Additionally, cros_ec_cmd_xfer() can set s_cmd->insize to a lower value.
We should use the new smaller value so we don't copy too much data to
the user.
Reported-by: Pengfei Wang <[email protected]>
Fixes: a841178445bb ('mfd: cros_ec: Use a zero-length array for command data')
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Tested-by: Gwendal Grignou <[email protected]>
Cc: <[email protected]> # v4.2+
Signed-off-by: Olof Johansson <[email protected]> | 096cdc6f52225835ff503f987a0d68ef770bb78e | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ec_device_ioctl_xcmd | ec_device_ioctl_xcmd( struct cros_ec_dev * ec , void __user * arg) | ['ec', 'arg'] | static long ec_device_ioctl_xcmd(struct cros_ec_dev *ec, void __user *arg)
{
long ret;
struct cros_ec_command u_cmd;
struct cros_ec_command *s_cmd;
if (copy_from_user(&u_cmd, arg, sizeof(u_cmd)))
return -EFAULT;
if ((u_cmd.outsize > EC_MAX_MSG_BYTES) ||
(u_cmd.insize > EC_MAX_MSG_BYTES))
return -EINVAL;
s_cmd = kmalloc(sizeof(*s_cmd) + max(u_cmd.outsize, u_cmd.insize),
GFP_KERNEL);
if (!s_cmd)
return -ENOMEM;
if (copy_from_user(s_cmd, arg, sizeof(*s_cmd) + u_cmd.outsize)) {
ret = -EFAULT;
goto exit;
}
s_cmd->command += ec->cmd_offset;
ret = cros_ec_cmd_xfer(ec->ec_dev, s_cmd);
/* Only copy data to userland if data was received. */
if (ret < 0)
goto exit;
if (copy_to_user(arg, s_cmd, sizeof(*s_cmd) + u_cmd.insize))
ret = -EFAULT;
exit:
kfree(s_cmd);
return ret;
} | 191 | True | 1 |
|
CVE-2016-6187 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a46a4647fd1df9cf52e43bf467f0d9265096ca', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a46a4647fd1df9cf52e43bf467f0d9265096ca', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/07/09/2', 'name': '[oss-security] 20160709 Re: CVE request: apparmor: oops in apparmor_setprocattr()', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-kernel&m=146793642811929&w=2', 'name': '[linux-kernel] 20160708 [GIT PULL] Fix for AppArmor oops in apparmor_setprocattr()', 'refsource': 'MLIST', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/30a46a4647fd1df9cf52e43bf467f0d9265096ca', 'name': 'https://github.com/torvalds/linux/commit/30a46a4647fd1df9cf52e43bf467f0d9265096ca', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.5', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1354383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1354383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.securityfocus.com/bid/91696', 'name': '91696', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}, {'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.4', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The apparmor_setprocattr function in security/apparmor/lsm.c in the Linux kernel before 4.6.5 does not validate the buffer size, which allows local users to gain privileges by triggering an AppArmor setprocattr hook.'}] | 2016-11-28T20:30Z | 2016-08-06T20:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Vegard Nossum | 2016-07-07 13:41:11-07:00 | apparmor: fix oops, validate buffer size in apparmor_setprocattr()
When proc_pid_attr_write() was changed to use memdup_user apparmor's
(interface violating) assumption that the setprocattr buffer was always
a single page was violated.
The size test is not strictly speaking needed as proc_pid_attr_write()
will reject anything larger, but for the sake of robustness we can keep
it in.
SMACK and SELinux look safe to me, but somebody else should probably
have a look just in case.
Based on original patch from Vegard Nossum <[email protected]>
modified for the case that apparmor provides null termination.
Fixes: bb646cdb12e75d82258c2f2e7746d5952d3e321a
Reported-by: Vegard Nossum <[email protected]>
Cc: Al Viro <[email protected]>
Cc: John Johansen <[email protected]>
Cc: Paul Moore <[email protected]>
Cc: Stephen Smalley <[email protected]>
Cc: Eric Paris <[email protected]>
Cc: Casey Schaufler <[email protected]>
Cc: [email protected]
Signed-off-by: John Johansen <[email protected]>
Reviewed-by: Tyler Hicks <[email protected]>
Signed-off-by: James Morris <[email protected]> | 30a46a4647fd1df9cf52e43bf467f0d9265096ca | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | apparmor_setprocattr | apparmor_setprocattr( struct task_struct * task , char * name , void * value , size_t size) | ['task', 'name', 'value', 'size'] | static int apparmor_setprocattr(struct task_struct *task, char *name,
void *value, size_t size)
{
struct common_audit_data sa;
struct apparmor_audit_data aad = {0,};
char *command, *args = value;
size_t arg_size;
int error;
if (size == 0)
return -EINVAL;
/* args points to a PAGE_SIZE buffer, AppArmor requires that
* the buffer must be null terminated or have size <= PAGE_SIZE -1
* so that AppArmor can null terminate them
*/
if (args[size - 1] != '\0') {
if (size == PAGE_SIZE)
return -EINVAL;
args[size] = '\0';
}
/* task can only write its own attributes */
if (current != task)
return -EACCES;
args = value;
args = strim(args);
command = strsep(&args, " ");
if (!args)
return -EINVAL;
args = skip_spaces(args);
if (!*args)
return -EINVAL;
arg_size = size - (args - (char *) value);
if (strcmp(name, "current") == 0) {
if (strcmp(command, "changehat") == 0) {
error = aa_setprocattr_changehat(args, arg_size,
!AA_DO_TEST);
} else if (strcmp(command, "permhat") == 0) {
error = aa_setprocattr_changehat(args, arg_size,
AA_DO_TEST);
} else if (strcmp(command, "changeprofile") == 0) {
error = aa_setprocattr_changeprofile(args, !AA_ONEXEC,
!AA_DO_TEST);
} else if (strcmp(command, "permprofile") == 0) {
error = aa_setprocattr_changeprofile(args, !AA_ONEXEC,
AA_DO_TEST);
} else
goto fail;
} else if (strcmp(name, "exec") == 0) {
if (strcmp(command, "exec") == 0)
error = aa_setprocattr_changeprofile(args, AA_ONEXEC,
!AA_DO_TEST);
else
goto fail;
} else
/* only support the "current" and "exec" process attributes */
return -EINVAL;
if (!error)
error = size;
return error;
fail:
sa.type = LSM_AUDIT_DATA_NONE;
sa.aad = &aad;
aad.profile = aa_current_profile();
aad.op = OP_SETPROCATTR;
aad.info = name;
aad.error = -EINVAL;
aa_audit_msg(AUDIT_APPARMOR_DENIED, &sa, NULL);
return -EINVAL;
} | 393 | True | 1 |
|
CVE-2016-6187 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a46a4647fd1df9cf52e43bf467f0d9265096ca', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a46a4647fd1df9cf52e43bf467f0d9265096ca', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/07/09/2', 'name': '[oss-security] 20160709 Re: CVE request: apparmor: oops in apparmor_setprocattr()', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-kernel&m=146793642811929&w=2', 'name': '[linux-kernel] 20160708 [GIT PULL] Fix for AppArmor oops in apparmor_setprocattr()', 'refsource': 'MLIST', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/30a46a4647fd1df9cf52e43bf467f0d9265096ca', 'name': 'https://github.com/torvalds/linux/commit/30a46a4647fd1df9cf52e43bf467f0d9265096ca', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.5', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1354383', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1354383', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.securityfocus.com/bid/91696', 'name': '91696', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}, {'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.4', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The apparmor_setprocattr function in security/apparmor/lsm.c in the Linux kernel before 4.6.5 does not validate the buffer size, which allows local users to gain privileges by triggering an AppArmor setprocattr hook.'}] | 2016-11-28T20:30Z | 2016-08-06T20:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Vegard Nossum | 2016-07-07 13:41:11-07:00 | apparmor: fix oops, validate buffer size in apparmor_setprocattr()
When proc_pid_attr_write() was changed to use memdup_user apparmor's
(interface violating) assumption that the setprocattr buffer was always
a single page was violated.
The size test is not strictly speaking needed as proc_pid_attr_write()
will reject anything larger, but for the sake of robustness we can keep
it in.
SMACK and SELinux look safe to me, but somebody else should probably
have a look just in case.
Based on original patch from Vegard Nossum <[email protected]>
modified for the case that apparmor provides null termination.
Fixes: bb646cdb12e75d82258c2f2e7746d5952d3e321a
Reported-by: Vegard Nossum <[email protected]>
Cc: Al Viro <[email protected]>
Cc: John Johansen <[email protected]>
Cc: Paul Moore <[email protected]>
Cc: Stephen Smalley <[email protected]>
Cc: Eric Paris <[email protected]>
Cc: Casey Schaufler <[email protected]>
Cc: [email protected]
Signed-off-by: John Johansen <[email protected]>
Reviewed-by: Tyler Hicks <[email protected]>
Signed-off-by: James Morris <[email protected]> | 30a46a4647fd1df9cf52e43bf467f0d9265096ca | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | apparmor_setprocattr | apparmor_setprocattr( struct task_struct * task , char * name , void * value , size_t size) | ['task', 'name', 'value', 'size'] | static int apparmor_setprocattr(struct task_struct *task, char *name,
void *value, size_t size)
{
struct common_audit_data sa;
struct apparmor_audit_data aad = {0,};
char *command, *args = value;
size_t arg_size;
int error;
if (size == 0)
return -EINVAL;
/* args points to a PAGE_SIZE buffer, AppArmor requires that
* the buffer must be null terminated or have size <= PAGE_SIZE -1
* so that AppArmor can null terminate them
*/
if (args[size - 1] != '\0') {
if (size == PAGE_SIZE)
return -EINVAL;
args[size] = '\0';
}
/* task can only write its own attributes */
if (current != task)
return -EACCES;
args = value;
args = strim(args);
command = strsep(&args, " ");
if (!args)
return -EINVAL;
args = skip_spaces(args);
if (!*args)
return -EINVAL;
arg_size = size - (args - (char *) value);
if (strcmp(name, "current") == 0) {
if (strcmp(command, "changehat") == 0) {
error = aa_setprocattr_changehat(args, arg_size,
!AA_DO_TEST);
} else if (strcmp(command, "permhat") == 0) {
error = aa_setprocattr_changehat(args, arg_size,
AA_DO_TEST);
} else if (strcmp(command, "changeprofile") == 0) {
error = aa_setprocattr_changeprofile(args, !AA_ONEXEC,
!AA_DO_TEST);
} else if (strcmp(command, "permprofile") == 0) {
error = aa_setprocattr_changeprofile(args, !AA_ONEXEC,
AA_DO_TEST);
} else
goto fail;
} else if (strcmp(name, "exec") == 0) {
if (strcmp(command, "exec") == 0)
error = aa_setprocattr_changeprofile(args, AA_ONEXEC,
!AA_DO_TEST);
else
goto fail;
} else
/* only support the "current" and "exec" process attributes */
return -EINVAL;
if (!error)
error = size;
return error;
fail:
sa.type = LSM_AUDIT_DATA_NONE;
sa.aad = &aad;
aad.profile = aa_current_profile();
aad.op = OP_SETPROCATTR;
aad.info = name;
aad.error = -EINVAL;
aa_audit_msg(AUDIT_APPARMOR_DENIED, &sa, NULL);
return -EINVAL;
} | 393 | True | 1 |
||
CVE-2016-5696 | False | False | False | False | AV:N/AC:M/Au:N/C:N/I:P/A:P | NETWORK | MEDIUM | NONE | NONE | PARTIAL | PARTIAL | 5.8 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L | NETWORK | HIGH | NONE | NONE | UNCHANGED | NONE | LOW | LOW | 4.8 | MEDIUM | 2.2 | 2.5 | nan | [{'url': 'https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758', 'name': 'https://github.com/torvalds/linux/commit/75ff39ccc1bd5d3c455b6822ab09e533c551f758', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1354708', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1354708', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/07/12/2', 'name': '[oss-security] 20160712 Re: CVE-2016-5389: linux kernel - challange ack information leak.', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html', 'name': 'http://www.prnewswire.com/news-releases/mitnick-attack-reappears-at-geekpwn-macau-contest-300270779.html', 'refsource': 'MISC', 'tags': ['Technical Description']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=75ff39ccc1bd5d3c455b6822ab09e533c551f758', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'name': 'http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://github.com/Gnoxter/mountain_goat', 'name': 'https://github.com/Gnoxter/mountain_goat', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://source.android.com/security/bulletin/2016-10-01.html', 'name': 'http://source.android.com/security/bulletin/2016-10-01.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf', 'name': 'https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_cao.pdf', 'refsource': 'MISC', 'tags': ['Technical Description']}, {'url': 'http://www.ubuntu.com/usn/USN-3072-2', 'name': 'USN-3072-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3071-1', 'name': 'USN-3071-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1657.html', 'name': 'RHSA-2016:1657', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91704', 'name': '91704', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036625', 'name': '1036625', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-3', 'name': 'USN-3070-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-2', 'name': 'USN-3070-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1633.html', 'name': 'RHSA-2016:1633', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1631.html', 'name': 'RHSA-2016:1631', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1632.html', 'name': 'RHSA-2016:1632', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3072-1', 'name': 'USN-3072-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://kc.mcafee.com/corporate/index?page=content&id=SB10167', 'name': 'https://kc.mcafee.com/corporate/index?page=content&id=SB10167', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-4', 'name': 'USN-3070-4', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1664.html', 'name': 'RHSA-2016:1664', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-1', 'name': 'USN-3070-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1814.html', 'name': 'RHSA-2016:1814', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1815.html', 'name': 'RHSA-2016:1815', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3071-2', 'name': 'USN-3071-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://bto.bluecoat.com/security-advisory/sa131', 'name': 'https://bto.bluecoat.com/security-advisory/sa131', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-1939.html', 'name': 'RHSA-2016:1939', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://security.paloaltonetworks.com/CVE-2016-5696', 'name': 'https://security.paloaltonetworks.com/CVE-2016-5696', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.arista.com/en/support/advisories-notices/security-advisories/1461-security-advisory-23', 'name': 'https://www.arista.com/en/support/advisories-notices/security-advisories/1461-security-advisory-23', 'refsource': 'MISC', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:*:*:*:*:*:*:*:*', 'versionEndIncluding': '7.0', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:oracle:vm_server:3.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:oracle:vm_server:3.3:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.6', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'net/ipv4/tcp_input.c in the Linux kernel before 4.7 does not properly determine the rate of challenge ACK segments, which makes it easier for remote attackers to hijack TCP sessions via a blind in-window attack.'}] | 2021-11-17T22:15Z | 2016-08-06T20:59Z | Exposure of Sensitive Information to an Unauthorized Actor | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:
private, personal information, such as personal messages, financial data, health records, geographic location, or contact details
system status and environment, such as the operating system and installed packages
business secrets and intellectual property
network status and configuration
the product's own code or internal state
metadata, e.g. logging of connections or message headers
indirect information, such as a discrepancy between two internal operations that can be observed by an outsider
Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:
the product's own users
people or organizations whose information is created or used by the product, even if they are not direct product users
the product's administrators, including the admins of the system(s) and/or networks on which the product operates
the developer
Information exposures can occur in different ways:
the code explicitly inserts sensitive information into resources or messages that are intentionally made accessible to unauthorized actors, but should not contain the information - i.e., the information should have been "scrubbed" or "sanitized"
a different weakness or mistake indirectly inserts the sensitive information into resources, such as a web script error revealing the full system path of the program.
the code manages resources that intentionally contain sensitive information, but the resources are unintentionally made accessible to unauthorized actors. In this case, the information exposure is resultant - i.e., a different weakness enabled the access to the information in the first place.
It is common practice to describe any loss of confidentiality as an "information exposure," but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.
| https://cwe.mitre.org/data/definitions/200.html | 0 | Eric Dumazet | 2016-07-10 10:04:02+02:00 | tcp: make challenge acks less predictable
Yue Cao claims that current host rate limiting of challenge ACKS
(RFC 5961) could leak enough information to allow a patient attacker
to hijack TCP sessions. He will soon provide details in an academic
paper.
This patch increases the default limit from 100 to 1000, and adds
some randomization so that the attacker can no longer hijack
sessions without spending a considerable amount of probes.
Based on initial analysis and patch from Linus.
Note that we also have per socket rate limiting, so it is tempting
to remove the host limit in the future.
v2: randomize the count of challenge acks per second, not the period.
Fixes: 282f23c6ee34 ("tcp: implement RFC 5961 3.2")
Reported-by: Yue Cao <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Suggested-by: Linus Torvalds <[email protected]>
Cc: Yuchung Cheng <[email protected]>
Cc: Neal Cardwell <[email protected]>
Acked-by: Neal Cardwell <[email protected]>
Acked-by: Yuchung Cheng <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 75ff39ccc1bd5d3c455b6822ab09e533c551f758 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | tcp_send_challenge_ack | tcp_send_challenge_ack( struct sock * sk , const struct sk_buff * skb) | ['sk', 'skb'] | static void tcp_send_challenge_ack(struct sock *sk, const struct sk_buff *skb)
{
/* unprotected vars, we dont care of overwrites */
static u32 challenge_timestamp;
static unsigned int challenge_count;
struct tcp_sock *tp = tcp_sk(sk);
u32 now;
/* First check our per-socket dupack rate limit. */
if (tcp_oow_rate_limited(sock_net(sk), skb,
LINUX_MIB_TCPACKSKIPPEDCHALLENGE,
&tp->last_oow_ack_time))
return;
/* Then check the check host-wide RFC 5961 rate limit. */
now = jiffies / HZ;
if (now != challenge_timestamp) {
challenge_timestamp = now;
challenge_count = 0;
}
if (++challenge_count <= sysctl_tcp_challenge_ack_limit) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPCHALLENGEACK);
tcp_send_ack(sk);
}
} | 104 | True | 1 |
|
CVE-2016-5400 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | PHYSICAL | LOW | LOW | NONE | UNCHANGED | NONE | NONE | HIGH | 4.3 | MEDIUM | 0.7 | 3.6 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa93d1fee85c890a34f2510a310e55ee76a27848', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa93d1fee85c890a34f2510a310e55ee76a27848', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://github.com/torvalds/linux/commit/aa93d1fee85c890a34f2510a310e55ee76a27848', 'name': 'https://github.com/torvalds/linux/commit/aa93d1fee85c890a34f2510a310e55ee76a27848', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/07/25/1', 'name': '[oss-security] 20160725 CVE-2016-5400 - linux kernel: denial of service in airspy USB driver.', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1358184', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1358184', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.ubuntu.com/usn/USN-3070-2', 'name': 'USN-3070-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-1', 'name': 'USN-3070-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/92104', 'name': '92104', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-3', 'name': 'USN-3070-3', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3070-4', 'name': 'USN-3070-4', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036432', 'name': '1036432', 'refsource': 'SECTRACK', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.6.6', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Memory leak in the airspy_probe function in drivers/media/usb/airspy/airspy.c in the airspy USB driver in the Linux kernel before 4.7 allows local users to cause a denial of service (memory consumption) via a crafted USB device that emulates many VFL_TYPE_SDR or VFL_TYPE_SUBDEV devices and performs many connect and disconnect operations.'}] | 2017-09-01T01:29Z | 2016-08-06T20:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | James Patrick-Evans | 2016-07-15 16:40:45+01:00 | media: fix airspy usb probe error path
Fix a memory leak on probe error of the airspy usb device driver.
The problem is triggered when more than 64 usb devices register with
v4l2 of type VFL_TYPE_SDR or VFL_TYPE_SUBDEV.
The memory leak is caused by the probe function of the airspy driver
mishandeling errors and not freeing the corresponding control structures
when an error occours registering the device to v4l2 core.
A badusb device can emulate 64 of these devices, and then through
continual emulated connect/disconnect of the 65th device, cause the
kernel to run out of RAM and crash the kernel, thus causing a local DOS
vulnerability.
Fixes CVE-2016-5400
Signed-off-by: James Patrick-Evans <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Cc: [email protected] # 3.17+
Signed-off-by: Linus Torvalds <[email protected]> | aa93d1fee85c890a34f2510a310e55ee76a27848 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | airspy_probe | airspy_probe( struct usb_interface * intf , const struct usb_device_id * id) | ['intf', 'id'] | static int airspy_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct airspy *s;
int ret;
u8 u8tmp, buf[BUF_SIZE];
s = kzalloc(sizeof(struct airspy), GFP_KERNEL);
if (s == NULL) {
dev_err(&intf->dev, "Could not allocate memory for state\n");
return -ENOMEM;
}
mutex_init(&s->v4l2_lock);
mutex_init(&s->vb_queue_lock);
spin_lock_init(&s->queued_bufs_lock);
INIT_LIST_HEAD(&s->queued_bufs);
s->dev = &intf->dev;
s->udev = interface_to_usbdev(intf);
s->f_adc = bands[0].rangelow;
s->f_rf = bands_rf[0].rangelow;
s->pixelformat = formats[0].pixelformat;
s->buffersize = formats[0].buffersize;
/* Detect device */
ret = airspy_ctrl_msg(s, CMD_BOARD_ID_READ, 0, 0, &u8tmp, 1);
if (ret == 0)
ret = airspy_ctrl_msg(s, CMD_VERSION_STRING_READ, 0, 0,
buf, BUF_SIZE);
if (ret) {
dev_err(s->dev, "Could not detect board\n");
goto err_free_mem;
}
buf[BUF_SIZE - 1] = '\0';
dev_info(s->dev, "Board ID: %02x\n", u8tmp);
dev_info(s->dev, "Firmware version: %s\n", buf);
/* Init videobuf2 queue structure */
s->vb_queue.type = V4L2_BUF_TYPE_SDR_CAPTURE;
s->vb_queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
s->vb_queue.drv_priv = s;
s->vb_queue.buf_struct_size = sizeof(struct airspy_frame_buf);
s->vb_queue.ops = &airspy_vb2_ops;
s->vb_queue.mem_ops = &vb2_vmalloc_memops;
s->vb_queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
ret = vb2_queue_init(&s->vb_queue);
if (ret) {
dev_err(s->dev, "Could not initialize vb2 queue\n");
goto err_free_mem;
}
/* Init video_device structure */
s->vdev = airspy_template;
s->vdev.queue = &s->vb_queue;
s->vdev.queue->lock = &s->vb_queue_lock;
video_set_drvdata(&s->vdev, s);
/* Register the v4l2_device structure */
s->v4l2_dev.release = airspy_video_release;
ret = v4l2_device_register(&intf->dev, &s->v4l2_dev);
if (ret) {
dev_err(s->dev, "Failed to register v4l2-device (%d)\n", ret);
goto err_free_mem;
}
/* Register controls */
v4l2_ctrl_handler_init(&s->hdl, 5);
s->lna_gain_auto = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops,
V4L2_CID_RF_TUNER_LNA_GAIN_AUTO, 0, 1, 1, 0);
s->lna_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops,
V4L2_CID_RF_TUNER_LNA_GAIN, 0, 14, 1, 8);
v4l2_ctrl_auto_cluster(2, &s->lna_gain_auto, 0, false);
s->mixer_gain_auto = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops,
V4L2_CID_RF_TUNER_MIXER_GAIN_AUTO, 0, 1, 1, 0);
s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops,
V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 15, 1, 8);
v4l2_ctrl_auto_cluster(2, &s->mixer_gain_auto, 0, false);
s->if_gain = v4l2_ctrl_new_std(&s->hdl, &airspy_ctrl_ops,
V4L2_CID_RF_TUNER_IF_GAIN, 0, 15, 1, 0);
if (s->hdl.error) {
ret = s->hdl.error;
dev_err(s->dev, "Could not initialize controls\n");
goto err_free_controls;
}
v4l2_ctrl_handler_setup(&s->hdl);
s->v4l2_dev.ctrl_handler = &s->hdl;
s->vdev.v4l2_dev = &s->v4l2_dev;
s->vdev.lock = &s->v4l2_lock;
ret = video_register_device(&s->vdev, VFL_TYPE_SDR, -1);
if (ret) {
dev_err(s->dev, "Failed to register as video device (%d)\n",
ret);
goto err_unregister_v4l2_dev;
}
dev_info(s->dev, "Registered as %s\n",
video_device_node_name(&s->vdev));
dev_notice(s->dev, "SDR API is still slightly experimental and functionality changes may follow\n");
return 0;
err_free_controls:
v4l2_ctrl_handler_free(&s->hdl);
err_unregister_v4l2_dev:
v4l2_device_unregister(&s->v4l2_dev);
err_free_mem:
kfree(s);
return ret;
} | 755 | True | 1 |
|
CVE-2016-6136 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:P/A:N | LOCAL | MEDIUM | NONE | NONE | PARTIAL | NONE | 1.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N | LOCAL | HIGH | LOW | NONE | UNCHANGED | NONE | HIGH | NONE | 4.7 | MEDIUM | 1.0 | 3.6 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1353533', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1353533', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/43761473c254b45883a64441dd0bc85a42f3645c', 'name': 'https://github.com/torvalds/linux/commit/43761473c254b45883a64441dd0bc85a42f3645c', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://github.com/linux-audit/audit-kernel/issues/18', 'name': 'https://github.com/linux-audit/audit-kernel/issues/18', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=43761473c254b45883a64441dd0bc85a42f3645c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=43761473c254b45883a64441dd0bc85a42f3645c', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.securityfocus.com/archive/1/538835/30/0/threaded', 'name': '20160704 [CVE-2016-6136] Double-Fetch Vulnerability in Linux-4.6/kernel/auditsc.c', 'refsource': 'BUGTRAQ', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://bugzilla.kernel.org/show_bug.cgi?id=120681', 'name': 'https://bugzilla.kernel.org/show_bug.cgi?id=120681', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://source.android.com/security/bulletin/2016-11-01.html', 'name': 'https://source.android.com/security/bulletin/2016-11-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91558', 'name': '91558', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0307.html', 'name': 'RHSA-2017:0307', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2584.html', 'name': 'RHSA-2016:2584', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.7', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the audit_log_single_execve_arg function in kernel/auditsc.c in the Linux kernel through 4.7 allows local users to bypass intended character-set restrictions or disrupt system-call auditing by changing a certain string, aka a "double fetch" vulnerability.'}] | 2018-01-05T02:31Z | 2016-08-06T20:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Paul Moore | 2016-07-19 17:42:57-04:00 | audit: fix a double fetch in audit_log_single_execve_arg()
There is a double fetch problem in audit_log_single_execve_arg()
where we first check the execve(2) argumnets for any "bad" characters
which would require hex encoding and then re-fetch the arguments for
logging in the audit record[1]. Of course this leaves a window of
opportunity for an unsavory application to munge with the data.
This patch reworks things by only fetching the argument data once[2]
into a buffer where it is scanned and logged into the audit
records(s). In addition to fixing the double fetch, this patch
improves on the original code in a few other ways: better handling
of large arguments which require encoding, stricter record length
checking, and some performance improvements (completely unverified,
but we got rid of some strlen() calls, that's got to be a good
thing).
As part of the development of this patch, I've also created a basic
regression test for the audit-testsuite, the test can be tracked on
GitHub at the following link:
* https://github.com/linux-audit/audit-testsuite/issues/25
[1] If you pay careful attention, there is actually a triple fetch
problem due to a strnlen_user() call at the top of the function.
[2] This is a tiny white lie, we do make a call to strnlen_user()
prior to fetching the argument data. I don't like it, but due to the
way the audit record is structured we really have no choice unless we
copy the entire argument at once (which would require a rather
wasteful allocation). The good news is that with this patch the
kernel no longer relies on this strnlen_user() value for anything
beyond recording it in the log, we also update it with a trustworthy
value whenever possible.
Reported-by: Pengfei Wang <[email protected]>
Cc: <[email protected]>
Signed-off-by: Paul Moore <[email protected]> | 43761473c254b45883a64441dd0bc85a42f3645c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | audit_log_execve_info | audit_log_execve_info( struct audit_context * context , struct audit_buffer ** ab) | ['context', 'ab'] | static void audit_log_execve_info(struct audit_context *context,
struct audit_buffer **ab)
{
int i, len;
size_t len_sent = 0;
const char __user *p;
char *buf;
p = (const char __user *)current->mm->arg_start;
audit_log_format(*ab, "argc=%d", context->execve.argc);
/*
* we need some kernel buffer to hold the userspace args. Just
* allocate one big one rather than allocating one of the right size
* for every single argument inside audit_log_single_execve_arg()
* should be <8k allocation so should be pretty safe.
*/
buf = kmalloc(MAX_EXECVE_AUDIT_LEN + 1, GFP_KERNEL);
if (!buf) {
audit_panic("out of memory for argv string");
return;
}
for (i = 0; i < context->execve.argc; i++) {
len = audit_log_single_execve_arg(context, ab, i,
&len_sent, p, buf);
if (len <= 0)
break;
p += len;
}
kfree(buf);
} | 141 | True | 1 |
|
CVE-2016-6136 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:P/A:N | LOCAL | MEDIUM | NONE | NONE | PARTIAL | NONE | 1.9 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N | LOCAL | HIGH | LOW | NONE | UNCHANGED | NONE | HIGH | NONE | 4.7 | MEDIUM | 1.0 | 3.6 | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1353533', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1353533', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/43761473c254b45883a64441dd0bc85a42f3645c', 'name': 'https://github.com/torvalds/linux/commit/43761473c254b45883a64441dd0bc85a42f3645c', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://github.com/linux-audit/audit-kernel/issues/18', 'name': 'https://github.com/linux-audit/audit-kernel/issues/18', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=43761473c254b45883a64441dd0bc85a42f3645c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=43761473c254b45883a64441dd0bc85a42f3645c', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.securityfocus.com/archive/1/538835/30/0/threaded', 'name': '20160704 [CVE-2016-6136] Double-Fetch Vulnerability in Linux-4.6/kernel/auditsc.c', 'refsource': 'BUGTRAQ', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://bugzilla.kernel.org/show_bug.cgi?id=120681', 'name': 'https://bugzilla.kernel.org/show_bug.cgi?id=120681', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://source.android.com/security/bulletin/2016-11-01.html', 'name': 'https://source.android.com/security/bulletin/2016-11-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/91558', 'name': '91558', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0307.html', 'name': 'RHSA-2017:0307', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2584.html', 'name': 'RHSA-2016:2584', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2574.html', 'name': 'RHSA-2016:2574', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.7', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the audit_log_single_execve_arg function in kernel/auditsc.c in the Linux kernel through 4.7 allows local users to bypass intended character-set restrictions or disrupt system-call auditing by changing a certain string, aka a "double fetch" vulnerability.'}] | 2018-01-05T02:31Z | 2016-08-06T20:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Paul Moore | 2016-07-19 17:42:57-04:00 | audit: fix a double fetch in audit_log_single_execve_arg()
There is a double fetch problem in audit_log_single_execve_arg()
where we first check the execve(2) argumnets for any "bad" characters
which would require hex encoding and then re-fetch the arguments for
logging in the audit record[1]. Of course this leaves a window of
opportunity for an unsavory application to munge with the data.
This patch reworks things by only fetching the argument data once[2]
into a buffer where it is scanned and logged into the audit
records(s). In addition to fixing the double fetch, this patch
improves on the original code in a few other ways: better handling
of large arguments which require encoding, stricter record length
checking, and some performance improvements (completely unverified,
but we got rid of some strlen() calls, that's got to be a good
thing).
As part of the development of this patch, I've also created a basic
regression test for the audit-testsuite, the test can be tracked on
GitHub at the following link:
* https://github.com/linux-audit/audit-testsuite/issues/25
[1] If you pay careful attention, there is actually a triple fetch
problem due to a strnlen_user() call at the top of the function.
[2] This is a tiny white lie, we do make a call to strnlen_user()
prior to fetching the argument data. I don't like it, but due to the
way the audit record is structured we really have no choice unless we
copy the entire argument at once (which would require a rather
wasteful allocation). The good news is that with this patch the
kernel no longer relies on this strnlen_user() value for anything
beyond recording it in the log, we also update it with a trustworthy
value whenever possible.
Reported-by: Pengfei Wang <[email protected]>
Cc: <[email protected]>
Signed-off-by: Paul Moore <[email protected]> | 43761473c254b45883a64441dd0bc85a42f3645c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | audit_log_single_execve_arg | audit_log_single_execve_arg( struct audit_context * context , struct audit_buffer ** ab , int arg_num , size_t * len_sent , const char __user * p , char * buf) | ['context', 'ab', 'arg_num', 'len_sent', 'p', 'buf'] | static int audit_log_single_execve_arg(struct audit_context *context,
struct audit_buffer **ab,
int arg_num,
size_t *len_sent,
const char __user *p,
char *buf)
{
char arg_num_len_buf[12];
const char __user *tmp_p = p;
/* how many digits are in arg_num? 5 is the length of ' a=""' */
size_t arg_num_len = snprintf(arg_num_len_buf, 12, "%d", arg_num) + 5;
size_t len, len_left, to_send;
size_t max_execve_audit_len = MAX_EXECVE_AUDIT_LEN;
unsigned int i, has_cntl = 0, too_long = 0;
int ret;
/* strnlen_user includes the null we don't want to send */
len_left = len = strnlen_user(p, MAX_ARG_STRLEN) - 1;
/*
* We just created this mm, if we can't find the strings
* we just copied into it something is _very_ wrong. Similar
* for strings that are too long, we should not have created
* any.
*/
if (WARN_ON_ONCE(len < 0 || len > MAX_ARG_STRLEN - 1)) {
send_sig(SIGKILL, current, 0);
return -1;
}
/* walk the whole argument looking for non-ascii chars */
do {
if (len_left > MAX_EXECVE_AUDIT_LEN)
to_send = MAX_EXECVE_AUDIT_LEN;
else
to_send = len_left;
ret = copy_from_user(buf, tmp_p, to_send);
/*
* There is no reason for this copy to be short. We just
* copied them here, and the mm hasn't been exposed to user-
* space yet.
*/
if (ret) {
WARN_ON(1);
send_sig(SIGKILL, current, 0);
return -1;
}
buf[to_send] = '\0';
has_cntl = audit_string_contains_control(buf, to_send);
if (has_cntl) {
/*
* hex messages get logged as 2 bytes, so we can only
* send half as much in each message
*/
max_execve_audit_len = MAX_EXECVE_AUDIT_LEN / 2;
break;
}
len_left -= to_send;
tmp_p += to_send;
} while (len_left > 0);
len_left = len;
if (len > max_execve_audit_len)
too_long = 1;
/* rewalk the argument actually logging the message */
for (i = 0; len_left > 0; i++) {
int room_left;
if (len_left > max_execve_audit_len)
to_send = max_execve_audit_len;
else
to_send = len_left;
/* do we have space left to send this argument in this ab? */
room_left = MAX_EXECVE_AUDIT_LEN - arg_num_len - *len_sent;
if (has_cntl)
room_left -= (to_send * 2);
else
room_left -= to_send;
if (room_left < 0) {
*len_sent = 0;
audit_log_end(*ab);
*ab = audit_log_start(context, GFP_KERNEL, AUDIT_EXECVE);
if (!*ab)
return 0;
}
/*
* first record needs to say how long the original string was
* so we can be sure nothing was lost.
*/
if ((i == 0) && (too_long))
audit_log_format(*ab, " a%d_len=%zu", arg_num,
has_cntl ? 2*len : len);
/*
* normally arguments are small enough to fit and we already
* filled buf above when we checked for control characters
* so don't bother with another copy_from_user
*/
if (len >= max_execve_audit_len)
ret = copy_from_user(buf, p, to_send);
else
ret = 0;
if (ret) {
WARN_ON(1);
send_sig(SIGKILL, current, 0);
return -1;
}
buf[to_send] = '\0';
/* actually log it */
audit_log_format(*ab, " a%d", arg_num);
if (too_long)
audit_log_format(*ab, "[%d]", i);
audit_log_format(*ab, "=");
if (has_cntl)
audit_log_n_hex(*ab, buf, to_send);
else
audit_log_string(*ab, buf);
p += to_send;
len_left -= to_send;
*len_sent += arg_num_len;
if (has_cntl)
*len_sent += to_send * 2;
else
*len_sent += to_send;
}
/* include the null we didn't log */
return len + 1;
} | 515 | True | 1 |
|
CVE-2016-8658 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:P/A:C | LOCAL | LOW | NONE | NONE | PARTIAL | COMPLETE | 5.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | NONE | LOW | HIGH | 6.1 | MEDIUM | 1.8 | 4.2 | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5', 'refsource': 'CONFIRM', 'tags': ['Release Notes']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/10/13/1', 'name': '[oss-security] 20161013 Re: CVE Request -- Broadcom Wifi Driver Brcmfmac brcmf_cfg80211_start_ap Buffer Overflow', 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1384403', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1384403', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ded89912156b1a47d940a0c954c43afbabd0c42c', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ded89912156b1a47d940a0c954c43afbabd0c42c', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://github.com/torvalds/linux/commit/ded89912156b1a47d940a0c954c43afbabd0c42c', 'name': 'https://github.com/torvalds/linux/commit/ded89912156b1a47d940a0c954c43afbabd0c42c', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.securityfocus.com/bid/93541', 'name': '93541', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3145-2', 'name': 'USN-3145-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3145-1', 'name': 'USN-3145-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.7.4', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.7.5 allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket.'}] | 2017-01-07T03:00Z | 2016-10-16T21:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Arend Van Spriel | 2016-09-05 10:45:47+01:00 | brcmfmac: avoid potential stack overflow in brcmf_cfg80211_start_ap()
User-space can choose to omit NL80211_ATTR_SSID and only provide raw
IE TLV data. When doing so it can provide SSID IE with length exceeding
the allowed size. The driver further processes this IE copying it
into a local variable without checking the length. Hence stack can be
corrupted and used as exploit.
Cc: [email protected] # v4.7
Reported-by: Daxing Guo <[email protected]>
Reviewed-by: Hante Meuleman <[email protected]>
Reviewed-by: Pieter-Paul Giesberts <[email protected]>
Reviewed-by: Franky Lin <[email protected]>
Signed-off-by: Arend van Spriel <[email protected]>
Signed-off-by: Kalle Valo <[email protected]> | ded89912156b1a47d940a0c954c43afbabd0c42c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | brcmf_cfg80211_start_ap | brcmf_cfg80211_start_ap( struct wiphy * wiphy , struct net_device * ndev , struct cfg80211_ap_settings * settings) | ['wiphy', 'ndev', 'settings'] | brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
struct cfg80211_ap_settings *settings)
{
s32 ie_offset;
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct brcmf_if *ifp = netdev_priv(ndev);
const struct brcmf_tlv *ssid_ie;
const struct brcmf_tlv *country_ie;
struct brcmf_ssid_le ssid_le;
s32 err = -EPERM;
const struct brcmf_tlv *rsn_ie;
const struct brcmf_vs_tlv *wpa_ie;
struct brcmf_join_params join_params;
enum nl80211_iftype dev_role;
struct brcmf_fil_bss_enable_le bss_enable;
u16 chanspec = chandef_to_chanspec(&cfg->d11inf, &settings->chandef);
bool mbss;
int is_11d;
brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
settings->chandef.chan->hw_value,
settings->chandef.center_freq1, settings->chandef.width,
settings->beacon_interval, settings->dtim_period);
brcmf_dbg(TRACE, "ssid=%s(%zu), auth_type=%d, inactivity_timeout=%d\n",
settings->ssid, settings->ssid_len, settings->auth_type,
settings->inactivity_timeout);
dev_role = ifp->vif->wdev.iftype;
mbss = ifp->vif->mbss;
/* store current 11d setting */
brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_REGULATORY, &ifp->vif->is_11d);
country_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
settings->beacon.tail_len,
WLAN_EID_COUNTRY);
is_11d = country_ie ? 1 : 0;
memset(&ssid_le, 0, sizeof(ssid_le));
if (settings->ssid == NULL || settings->ssid_len == 0) {
ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
ssid_ie = brcmf_parse_tlvs(
(u8 *)&settings->beacon.head[ie_offset],
settings->beacon.head_len - ie_offset,
WLAN_EID_SSID);
if (!ssid_ie)
return -EINVAL;
memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
brcmf_dbg(TRACE, "SSID is (%s) in Head\n", ssid_le.SSID);
} else {
memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
}
if (!mbss) {
brcmf_set_mpc(ifp, 0);
brcmf_configure_arp_nd_offload(ifp, false);
}
/* find the RSN_IE */
rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
settings->beacon.tail_len, WLAN_EID_RSN);
/* find the WPA_IE */
wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
settings->beacon.tail_len);
if ((wpa_ie != NULL || rsn_ie != NULL)) {
brcmf_dbg(TRACE, "WPA(2) IE is found\n");
if (wpa_ie != NULL) {
/* WPA IE */
err = brcmf_configure_wpaie(ifp, wpa_ie, false);
if (err < 0)
goto exit;
} else {
struct brcmf_vs_tlv *tmp_ie;
tmp_ie = (struct brcmf_vs_tlv *)rsn_ie;
/* RSN IE */
err = brcmf_configure_wpaie(ifp, tmp_ie, true);
if (err < 0)
goto exit;
}
} else {
brcmf_dbg(TRACE, "No WPA(2) IEs found\n");
brcmf_configure_opensecurity(ifp);
}
brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon);
/* Parameters shared by all radio interfaces */
if (!mbss) {
if (is_11d != ifp->vif->is_11d) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
is_11d);
if (err < 0) {
brcmf_err("Regulatory Set Error, %d\n", err);
goto exit;
}
}
if (settings->beacon_interval) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
settings->beacon_interval);
if (err < 0) {
brcmf_err("Beacon Interval Set Error, %d\n",
err);
goto exit;
}
}
if (settings->dtim_period) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
settings->dtim_period);
if (err < 0) {
brcmf_err("DTIM Interval Set Error, %d\n", err);
goto exit;
}
}
if ((dev_role == NL80211_IFTYPE_AP) &&
((ifp->ifidx == 0) ||
!brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
if (err < 0) {
brcmf_err("BRCMF_C_DOWN error %d\n", err);
goto exit;
}
brcmf_fil_iovar_int_set(ifp, "apsta", 0);
}
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
if (err < 0) {
brcmf_err("SET INFRA error %d\n", err);
goto exit;
}
} else if (WARN_ON(is_11d != ifp->vif->is_11d)) {
/* Multiple-BSS should use same 11d configuration */
err = -EINVAL;
goto exit;
}
/* Interface specific setup */
if (dev_role == NL80211_IFTYPE_AP) {
if ((brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS)) && (!mbss))
brcmf_fil_iovar_int_set(ifp, "mbss", 1);
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
if (err < 0) {
brcmf_err("setting AP mode failed %d\n", err);
goto exit;
}
if (!mbss) {
/* Firmware 10.x requires setting channel after enabling
* AP and before bringing interface up.
*/
err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
if (err < 0) {
brcmf_err("Set Channel failed: chspec=%d, %d\n",
chanspec, err);
goto exit;
}
}
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
if (err < 0) {
brcmf_err("BRCMF_C_UP error (%d)\n", err);
goto exit;
}
/* On DOWN the firmware removes the WEP keys, reconfigure
* them if they were set.
*/
brcmf_cfg80211_reconfigure_wep(ifp);
memset(&join_params, 0, sizeof(join_params));
/* join parameters starts with ssid */
memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
/* create softap */
err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
&join_params, sizeof(join_params));
if (err < 0) {
brcmf_err("SET SSID error (%d)\n", err);
goto exit;
}
if (settings->hidden_ssid) {
err = brcmf_fil_iovar_int_set(ifp, "closednet", 1);
if (err) {
brcmf_err("closednet error (%d)\n", err);
goto exit;
}
}
brcmf_dbg(TRACE, "AP mode configuration complete\n");
} else if (dev_role == NL80211_IFTYPE_P2P_GO) {
err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
if (err < 0) {
brcmf_err("Set Channel failed: chspec=%d, %d\n",
chanspec, err);
goto exit;
}
err = brcmf_fil_bsscfg_data_set(ifp, "ssid", &ssid_le,
sizeof(ssid_le));
if (err < 0) {
brcmf_err("setting ssid failed %d\n", err);
goto exit;
}
bss_enable.bsscfgidx = cpu_to_le32(ifp->bsscfgidx);
bss_enable.enable = cpu_to_le32(1);
err = brcmf_fil_iovar_data_set(ifp, "bss", &bss_enable,
sizeof(bss_enable));
if (err < 0) {
brcmf_err("bss_enable config failed %d\n", err);
goto exit;
}
brcmf_dbg(TRACE, "GO mode configuration complete\n");
} else {
WARN_ON(1);
}
set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
brcmf_net_setcarrier(ifp, true);
exit:
if ((err) && (!mbss)) {
brcmf_set_mpc(ifp, 1);
brcmf_configure_arp_nd_offload(ifp, true);
}
return err;
} | 1232 | True | 1 |
|
CVE-2016-7425 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2016/09/17/2', 'name': '[oss-security] 20160916 Re: linux kernel SCSI arcmsr driver: buffer overflow in arcmsr_iop_message_xfer()', 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'http://marc.info/?l=linux-scsi&m=147394713328707&w=2', 'name': '[linux-kernel] 20160915 [patch v2] arcmsr: buffer overflow in arcmsr_iop_message_xfer()', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1377330', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1377330', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://security-tracker.debian.org/tracker/CVE-2016-7425', 'name': 'https://security-tracker.debian.org/tracker/CVE-2016-7425', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-scsi&m=147394796228991&w=2', 'name': '[linux-kernel] 20160915 Re: [patch v2] arcmsr: buffer overflow in arcmsr_iop_message_xfer()', 'refsource': 'MLIST', 'tags': ['Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7bc2b55a5c030685b399bb65b6baa9ccc3d1f167', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7bc2b55a5c030685b399bb65b6baa9ccc3d1f167', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'https://github.com/torvalds/linux/commit/7bc2b55a5c030685b399bb65b6baa9ccc3d1f167', 'name': 'https://github.com/torvalds/linux/commit/7bc2b55a5c030685b399bb65b6baa9ccc3d1f167', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.securityfocus.com/bid/93037', 'name': '93037', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3145-2', 'name': 'USN-3145-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3145-1', 'name': 'USN-3145-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3144-2', 'name': 'USN-3144-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3144-1', 'name': 'USN-3144-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel through 4.8.2 does not restrict a certain length field, which allows local users to gain privileges or cause a denial of service (heap-based buffer overflow) via an ARCMSR_MESSAGE_WRITE_WQBUFFER control code.'}] | 2017-01-07T03:00Z | 2016-10-16T21:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Dan Carpenter | 2016-09-15 16:44:56+03:00 | scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer()
We need to put an upper bound on "user_len" so the memcpy() doesn't
overflow.
Cc: <[email protected]>
Reported-by: Marco Grassi <[email protected]>
Signed-off-by: Dan Carpenter <[email protected]>
Reviewed-by: Tomas Henzl <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]> | 7bc2b55a5c030685b399bb65b6baa9ccc3d1f167 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | arcmsr_iop_message_xfer | arcmsr_iop_message_xfer( struct AdapterControlBlock * acb , struct scsi_cmnd * cmd) | ['acb', 'cmd'] | static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd)
{
char *buffer;
unsigned short use_sg;
int retvalue = 0, transfer_len = 0;
unsigned long flags;
struct CMD_MESSAGE_FIELD *pcmdmessagefld;
uint32_t controlcode = (uint32_t)cmd->cmnd[5] << 24 |
(uint32_t)cmd->cmnd[6] << 16 |
(uint32_t)cmd->cmnd[7] << 8 |
(uint32_t)cmd->cmnd[8];
struct scatterlist *sg;
use_sg = scsi_sg_count(cmd);
sg = scsi_sglist(cmd);
buffer = kmap_atomic(sg_page(sg)) + sg->offset;
if (use_sg > 1) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
transfer_len += sg->length;
if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
retvalue = ARCMSR_MESSAGE_FAIL;
pr_info("%s: ARCMSR_MESSAGE_FAIL!\n", __func__);
goto message_out;
}
pcmdmessagefld = (struct CMD_MESSAGE_FIELD *)buffer;
switch (controlcode) {
case ARCMSR_MESSAGE_READ_RQBUFFER: {
unsigned char *ver_addr;
uint8_t *ptmpQbuffer;
uint32_t allxfer_len = 0;
ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
if (!ver_addr) {
retvalue = ARCMSR_MESSAGE_FAIL;
pr_info("%s: memory not enough!\n", __func__);
goto message_out;
}
ptmpQbuffer = ver_addr;
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
if (acb->rqbuf_getIndex != acb->rqbuf_putIndex) {
unsigned int tail = acb->rqbuf_getIndex;
unsigned int head = acb->rqbuf_putIndex;
unsigned int cnt_to_end = CIRC_CNT_TO_END(head, tail, ARCMSR_MAX_QBUFFER);
allxfer_len = CIRC_CNT(head, tail, ARCMSR_MAX_QBUFFER);
if (allxfer_len > ARCMSR_API_DATA_BUFLEN)
allxfer_len = ARCMSR_API_DATA_BUFLEN;
if (allxfer_len <= cnt_to_end)
memcpy(ptmpQbuffer, acb->rqbuffer + tail, allxfer_len);
else {
memcpy(ptmpQbuffer, acb->rqbuffer + tail, cnt_to_end);
memcpy(ptmpQbuffer + cnt_to_end, acb->rqbuffer, allxfer_len - cnt_to_end);
}
acb->rqbuf_getIndex = (acb->rqbuf_getIndex + allxfer_len) % ARCMSR_MAX_QBUFFER;
}
memcpy(pcmdmessagefld->messagedatabuffer, ver_addr,
allxfer_len);
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
struct QBUFFER __iomem *prbuffer;
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
prbuffer = arcmsr_get_iop_rqbuffer(acb);
if (arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
}
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
kfree(ver_addr);
pcmdmessagefld->cmdmessage.Length = allxfer_len;
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
unsigned char *ver_addr;
int32_t user_len, cnt2end;
uint8_t *pQbuffer, *ptmpuserbuffer;
ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
if (!ver_addr) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
ptmpuserbuffer = ver_addr;
user_len = pcmdmessagefld->cmdmessage.Length;
memcpy(ptmpuserbuffer,
pcmdmessagefld->messagedatabuffer, user_len);
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
if (acb->wqbuf_putIndex != acb->wqbuf_getIndex) {
struct SENSE_DATA *sensebuffer =
(struct SENSE_DATA *)cmd->sense_buffer;
arcmsr_write_ioctldata2iop(acb);
/* has error report sensedata */
sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
sensebuffer->SenseKey = ILLEGAL_REQUEST;
sensebuffer->AdditionalSenseLength = 0x0A;
sensebuffer->AdditionalSenseCode = 0x20;
sensebuffer->Valid = 1;
retvalue = ARCMSR_MESSAGE_FAIL;
} else {
pQbuffer = &acb->wqbuffer[acb->wqbuf_putIndex];
cnt2end = ARCMSR_MAX_QBUFFER - acb->wqbuf_putIndex;
if (user_len > cnt2end) {
memcpy(pQbuffer, ptmpuserbuffer, cnt2end);
ptmpuserbuffer += cnt2end;
user_len -= cnt2end;
acb->wqbuf_putIndex = 0;
pQbuffer = acb->wqbuffer;
}
memcpy(pQbuffer, ptmpuserbuffer, user_len);
acb->wqbuf_putIndex += user_len;
acb->wqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
acb->acb_flags &=
~ACB_F_MESSAGE_WQBUFFER_CLEARED;
arcmsr_write_ioctldata2iop(acb);
}
}
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
kfree(ver_addr);
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
uint8_t *pQbuffer = acb->rqbuffer;
arcmsr_clear_iop2drv_rqueue_buffer(acb);
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
acb->rqbuf_getIndex = 0;
acb->rqbuf_putIndex = 0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
uint8_t *pQbuffer = acb->wqbuffer;
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
ACB_F_MESSAGE_WQBUFFER_READED);
acb->wqbuf_getIndex = 0;
acb->wqbuf_putIndex = 0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
uint8_t *pQbuffer;
arcmsr_clear_iop2drv_rqueue_buffer(acb);
spin_lock_irqsave(&acb->rqbuffer_lock, flags);
acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
acb->rqbuf_getIndex = 0;
acb->rqbuf_putIndex = 0;
pQbuffer = acb->rqbuffer;
memset(pQbuffer, 0, sizeof(struct QBUFFER));
spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
spin_lock_irqsave(&acb->wqbuffer_lock, flags);
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
ACB_F_MESSAGE_WQBUFFER_READED);
acb->wqbuf_getIndex = 0;
acb->wqbuf_putIndex = 0;
pQbuffer = acb->wqbuffer;
memset(pQbuffer, 0, sizeof(struct QBUFFER));
spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
break;
}
case ARCMSR_MESSAGE_RETURN_CODE_3F: {
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_3F;
break;
}
case ARCMSR_MESSAGE_SAY_HELLO: {
int8_t *hello_string = "Hello! I am ARCMSR";
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
memcpy(pcmdmessagefld->messagedatabuffer,
hello_string, (int16_t)strlen(hello_string));
break;
}
case ARCMSR_MESSAGE_SAY_GOODBYE: {
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
arcmsr_iop_parking(acb);
break;
}
case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
if (acb->fw_flag == FW_DEADLOCK)
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
else
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
arcmsr_flush_adapter_cache(acb);
break;
}
default:
retvalue = ARCMSR_MESSAGE_FAIL;
pr_info("%s: unknown controlcode!\n", __func__);
}
message_out:
if (use_sg) {
struct scatterlist *sg = scsi_sglist(cmd);
kunmap_atomic(buffer - sg->offset);
}
return retvalue;
} | 1317 | True | 1 |
|
CVE-2016-10044 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | nan | [{'url': 'https://github.com/torvalds/linux/commit/22f6b4d34fcf039c63a94e7670e0da24f8575a5a', 'name': 'https://github.com/torvalds/linux/commit/22f6b4d34fcf039c63a94e7670e0da24f8575a5a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.7', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.7', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://source.android.com/security/bulletin/2017-02-01.html', 'name': 'http://source.android.com/security/bulletin/2017-02-01.html', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=22f6b4d34fcf039c63a94e7670e0da24f8575a5a', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=22f6b4d34fcf039c63a94e7670e0da24f8575a5a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/96122', 'name': '96122', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1037798', 'name': '1037798', 'refsource': 'SECTRACK', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.7.6', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:*:*:*:*:*:*:*:*', 'versionEndIncluding': '7.1.1', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The aio_mount function in fs/aio.c in the Linux kernel before 4.7.7 does not properly restrict execute access, which makes it easier for local users to bypass intended SELinux W^X policy restrictions, and consequently gain privileges, via an io_setup system call.'}] | 2017-07-25T01:29Z | 2017-02-07T07:59Z | Permissions, Privileges, and Access Controls | Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. | https://cwe.mitre.org/data/definitions/264.html | 1 | Jann Horn | 2016-09-16 00:31:22+02:00 | aio: mark AIO pseudo-fs noexec
This ensures that do_mmap() won't implicitly make AIO memory mappings
executable if the READ_IMPLIES_EXEC personality flag is set. Such
behavior is problematic because the security_mmap_file LSM hook doesn't
catch this case, potentially permitting an attacker to bypass a W^X
policy enforced by SELinux.
I have tested the patch on my machine.
To test the behavior, compile and run this:
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/personality.h>
#include <linux/aio_abi.h>
#include <err.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/syscall.h>
int main(void) {
personality(READ_IMPLIES_EXEC);
aio_context_t ctx = 0;
if (syscall(__NR_io_setup, 1, &ctx))
err(1, "io_setup");
char cmd[1000];
sprintf(cmd, "cat /proc/%d/maps | grep -F '/[aio]'",
(int)getpid());
system(cmd);
return 0;
}
In the output, "rw-s" is good, "rwxs" is bad.
Signed-off-by: Jann Horn <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 22f6b4d34fcf039c63a94e7670e0da24f8575a5a | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | aio_mount | aio_mount( struct file_system_type * fs_type , int flags , const char * dev_name , void * data) | ['fs_type', 'flags', 'dev_name', 'data'] | static struct dentry *aio_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
static const struct dentry_operations ops = {
.d_dname = simple_dname,
};
return mount_pseudo(fs_type, "aio:", NULL, &ops, AIO_RING_MAGIC);
} | 50 | True | 1 |
||
CVE-2017-15102 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | PHYSICAL | HIGH | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 6.3 | MEDIUM | 0.4 | 5.9 | False | [{'url': 'https://github.com/torvalds/linux/commit/2fae9e5a7babada041e2e161699ade2447a01989', 'name': 'https://github.com/torvalds/linux/commit/2fae9e5a7babada041e2e161699ade2447a01989', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1505905', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1505905', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://seclists.org/oss-sec/2017/q4/238', 'name': 'http://seclists.org/oss-sec/2017/q4/238', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Mailing List', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2fae9e5a7babada041e2e161699ade2447a01989', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2fae9e5a7babada041e2e161699ade2447a01989', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/101790', 'name': '101790', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://usn.ubuntu.com/3583-2/', 'name': 'USN-3583-2', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'https://usn.ubuntu.com/3583-1/', 'name': 'USN-3583-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-476'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '4.8.1', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The tower_probe function in drivers/usb/misc/legousbtower.c in the Linux kernel before 4.8.1 allows local users (who are physically proximate for inserting a crafted USB device) to gain privileges by leveraging a write-what-where condition that occurs after a race condition and a NULL pointer dereference.'}] | 2019-05-08T18:14Z | 2017-11-15T21:29Z | NULL Pointer Dereference | A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. | NULL pointer dereference issues can occur through a number of flaws, including race conditions, and simple programming omissions.
| https://cwe.mitre.org/data/definitions/476.html | 0 | Greg Kroah-Hartman | 2016-09-19 19:09:51+01:00 | usb: misc: legousbtower: Fix NULL pointer deference
This patch fixes a NULL pointer dereference caused by a race codition in
the probe function of the legousbtower driver. It re-structures the
probe function to only register the interface after successfully reading
the board's firmware ID.
The probe function does not deregister the usb interface after an error
receiving the devices firmware ID. The device file registered
(/dev/usb/legousbtower%d) may be read/written globally before the probe
function returns. When tower_delete is called in the probe function
(after an r/w has been initiated), core dev structures are deleted while
the file operation functions are still running. If the 0 address is
mappable on the machine, this vulnerability can be used to create a
Local Priviege Escalation exploit via a write-what-where condition by
remapping dev->interrupt_out_buffer in tower_write. A forged USB device
and local program execution would be required for LPE. The USB device
would have to delay the control message in tower_probe and accept
the control urb in tower_open whilst guest code initiated a write to the
device file as tower_delete is called from the error in tower_probe.
This bug has existed since 2003. Patch tested by emulated device.
Reported-by: James Patrick-Evans <[email protected]>
Tested-by: James Patrick-Evans <[email protected]>
Signed-off-by: James Patrick-Evans <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]> | 2fae9e5a7babada041e2e161699ade2447a01989 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | tower_probe | tower_probe( struct usb_interface * interface , const struct usb_device_id * id) | ['interface', 'id'] | static int tower_probe (struct usb_interface *interface, const struct usb_device_id *id)
{
struct device *idev = &interface->dev;
struct usb_device *udev = interface_to_usbdev(interface);
struct lego_usb_tower *dev = NULL;
struct usb_host_interface *iface_desc;
struct usb_endpoint_descriptor* endpoint;
struct tower_get_version_reply get_version_reply;
int i;
int retval = -ENOMEM;
int result;
/* allocate memory for our device state and initialize it */
dev = kmalloc (sizeof(struct lego_usb_tower), GFP_KERNEL);
if (!dev)
goto exit;
mutex_init(&dev->lock);
dev->udev = udev;
dev->open_count = 0;
dev->read_buffer = NULL;
dev->read_buffer_length = 0;
dev->read_packet_length = 0;
spin_lock_init (&dev->read_buffer_lock);
dev->packet_timeout_jiffies = msecs_to_jiffies(packet_timeout);
dev->read_last_arrival = jiffies;
init_waitqueue_head (&dev->read_wait);
init_waitqueue_head (&dev->write_wait);
dev->interrupt_in_buffer = NULL;
dev->interrupt_in_endpoint = NULL;
dev->interrupt_in_urb = NULL;
dev->interrupt_in_running = 0;
dev->interrupt_in_done = 0;
dev->interrupt_out_buffer = NULL;
dev->interrupt_out_endpoint = NULL;
dev->interrupt_out_urb = NULL;
dev->interrupt_out_busy = 0;
iface_desc = interface->cur_altsetting;
/* set up the endpoint information */
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
endpoint = &iface_desc->endpoint[i].desc;
if (usb_endpoint_xfer_int(endpoint)) {
if (usb_endpoint_dir_in(endpoint))
dev->interrupt_in_endpoint = endpoint;
else
dev->interrupt_out_endpoint = endpoint;
}
}
if(dev->interrupt_in_endpoint == NULL) {
dev_err(idev, "interrupt in endpoint not found\n");
goto error;
}
if (dev->interrupt_out_endpoint == NULL) {
dev_err(idev, "interrupt out endpoint not found\n");
goto error;
}
dev->read_buffer = kmalloc (read_buffer_size, GFP_KERNEL);
if (!dev->read_buffer)
goto error;
dev->interrupt_in_buffer = kmalloc (usb_endpoint_maxp(dev->interrupt_in_endpoint), GFP_KERNEL);
if (!dev->interrupt_in_buffer)
goto error;
dev->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->interrupt_in_urb)
goto error;
dev->interrupt_out_buffer = kmalloc (write_buffer_size, GFP_KERNEL);
if (!dev->interrupt_out_buffer)
goto error;
dev->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->interrupt_out_urb)
goto error;
dev->interrupt_in_interval = interrupt_in_interval ? interrupt_in_interval : dev->interrupt_in_endpoint->bInterval;
dev->interrupt_out_interval = interrupt_out_interval ? interrupt_out_interval : dev->interrupt_out_endpoint->bInterval;
/* we can register the device now, as it is ready */
usb_set_intfdata (interface, dev);
retval = usb_register_dev (interface, &tower_class);
if (retval) {
/* something prevented us from registering this driver */
dev_err(idev, "Not able to get a minor for this device.\n");
usb_set_intfdata (interface, NULL);
goto error;
}
dev->minor = interface->minor;
/* let the user know what node this device is now attached to */
dev_info(&interface->dev, "LEGO USB Tower #%d now attached to major "
"%d minor %d\n", (dev->minor - LEGO_USB_TOWER_MINOR_BASE),
USB_MAJOR, dev->minor);
/* get the firmware version and log it */
result = usb_control_msg (udev,
usb_rcvctrlpipe(udev, 0),
LEGO_USB_TOWER_REQUEST_GET_VERSION,
USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
0,
0,
&get_version_reply,
sizeof(get_version_reply),
1000);
if (result < 0) {
dev_err(idev, "LEGO USB Tower get version control request failed\n");
retval = result;
goto error;
}
dev_info(&interface->dev, "LEGO USB Tower firmware version is %d.%d "
"build %d\n", get_version_reply.major,
get_version_reply.minor,
le16_to_cpu(get_version_reply.build_no));
exit:
return retval;
error:
tower_delete(dev);
return retval;
} | 636 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | v9fs_xattr_set_acl | v9fs_xattr_set_acl( const struct xattr_handler * handler , struct dentry * dentry , struct inode * inode , const char * name , const void * value , size_t size , int flags) | ['handler', 'dentry', 'inode', 'name', 'value', 'size', 'flags'] | static int v9fs_xattr_set_acl(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
const char *name, const void *value,
size_t size, int flags)
{
int retval;
struct posix_acl *acl;
struct v9fs_session_info *v9ses;
v9ses = v9fs_dentry2v9ses(dentry);
/*
* set the attribute on the remote. Without even looking at the
* xattr value. We leave it to the server to validate
*/
if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
return v9fs_xattr_set(dentry, handler->name, value, size,
flags);
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
if (!inode_owner_or_capable(inode))
return -EPERM;
if (value) {
/* update the cached acl value */
acl = posix_acl_from_xattr(&init_user_ns, value, size);
if (IS_ERR(acl))
return PTR_ERR(acl);
else if (acl) {
retval = posix_acl_valid(inode->i_sb->s_user_ns, acl);
if (retval)
goto err_out;
}
} else
acl = NULL;
switch (handler->flags) {
case ACL_TYPE_ACCESS:
if (acl) {
umode_t mode = inode->i_mode;
retval = posix_acl_equiv_mode(acl, &mode);
if (retval < 0)
goto err_out;
else {
struct iattr iattr;
if (retval == 0) {
/*
* ACL can be represented
* by the mode bits. So don't
* update ACL.
*/
acl = NULL;
value = NULL;
size = 0;
}
/* Updte the mode bits */
iattr.ia_mode = ((mode & S_IALLUGO) |
(inode->i_mode & ~S_IALLUGO));
iattr.ia_valid = ATTR_MODE;
/* FIXME should we update ctime ?
* What is the following setxattr update the
* mode ?
*/
v9fs_vfs_setattr_dotl(dentry, &iattr);
}
}
break;
case ACL_TYPE_DEFAULT:
if (!S_ISDIR(inode->i_mode)) {
retval = acl ? -EINVAL : 0;
goto err_out;
}
break;
default:
BUG();
}
retval = v9fs_xattr_set(dentry, handler->name, value, size, flags);
if (!retval)
set_cached_acl(inode, handler->flags, acl);
err_out:
posix_acl_release(acl);
return retval;
} | 356 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __btrfs_set_acl | __btrfs_set_acl( struct btrfs_trans_handle * trans , struct inode * inode , struct posix_acl * acl , int type) | ['trans', 'inode', 'acl', 'type'] | static int __btrfs_set_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct posix_acl *acl, int type)
{
int ret, size = 0;
const char *name;
char *value = NULL;
switch (type) {
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
ret = posix_acl_equiv_mode(acl, &inode->i_mode);
if (ret < 0)
return ret;
if (ret == 0)
acl = NULL;
}
ret = 0;
break;
case ACL_TYPE_DEFAULT:
if (!S_ISDIR(inode->i_mode))
return acl ? -EINVAL : 0;
name = XATTR_NAME_POSIX_ACL_DEFAULT;
break;
default:
return -EINVAL;
}
if (acl) {
size = posix_acl_xattr_size(acl->a_count);
value = kmalloc(size, GFP_KERNEL);
if (!value) {
ret = -ENOMEM;
goto out;
}
ret = posix_acl_to_xattr(&init_user_ns, acl, value, size);
if (ret < 0)
goto out;
}
ret = __btrfs_setxattr(trans, inode, name, value, size, 0);
out:
kfree(value);
if (!ret)
set_cached_acl(inode, type, acl);
return ret;
} | 232 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ceph_set_acl | ceph_set_acl( struct inode * inode , struct posix_acl * acl , int type) | ['inode', 'acl', 'type'] | int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
int ret = 0, size = 0;
const char *name = NULL;
char *value = NULL;
struct iattr newattrs;
umode_t new_mode = inode->i_mode, old_mode = inode->i_mode;
switch (type) {
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
ret = posix_acl_equiv_mode(acl, &new_mode);
if (ret < 0)
goto out;
if (ret == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:
if (!S_ISDIR(inode->i_mode)) {
ret = acl ? -EINVAL : 0;
goto out;
}
name = XATTR_NAME_POSIX_ACL_DEFAULT;
break;
default:
ret = -EINVAL;
goto out;
}
if (acl) {
size = posix_acl_xattr_size(acl->a_count);
value = kmalloc(size, GFP_NOFS);
if (!value) {
ret = -ENOMEM;
goto out;
}
ret = posix_acl_to_xattr(&init_user_ns, acl, value, size);
if (ret < 0)
goto out_free;
}
if (new_mode != old_mode) {
newattrs.ia_mode = new_mode;
newattrs.ia_valid = ATTR_MODE;
ret = __ceph_setattr(inode, &newattrs);
if (ret)
goto out_free;
}
ret = __ceph_setxattr(inode, name, value, size, 0);
if (ret) {
if (new_mode != old_mode) {
newattrs.ia_mode = old_mode;
newattrs.ia_valid = ATTR_MODE;
__ceph_setattr(inode, &newattrs);
}
goto out_free;
}
ceph_set_cached_acl(inode, type, acl);
out_free:
kfree(value);
out:
return ret;
} | 321 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ext2_set_acl | ext2_set_acl( struct inode * inode , struct posix_acl * acl , int type) | ['inode', 'acl', 'type'] | ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
int name_index;
void *value = NULL;
size_t size = 0;
int error;
switch(type) {
case ACL_TYPE_ACCESS:
name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_equiv_mode(acl, &inode->i_mode);
if (error < 0)
return error;
else {
inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
if (error == 0)
acl = NULL;
}
}
break;
case ACL_TYPE_DEFAULT:
name_index = EXT2_XATTR_INDEX_POSIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
default:
return -EINVAL;
}
if (acl) {
value = ext2_acl_to_disk(acl, &size);
if (IS_ERR(value))
return (int)PTR_ERR(value);
}
error = ext2_xattr_set(inode, name_index, "", value, size, 0);
kfree(value);
if (!error)
set_cached_acl(inode, type, acl);
return error;
} | 204 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __ext4_set_acl | __ext4_set_acl( handle_t * handle , struct inode * inode , int type , struct posix_acl * acl) | ['handle', 'inode', 'type', 'acl'] | __ext4_set_acl(handle_t *handle, struct inode *inode, int type,
struct posix_acl *acl)
{
int name_index;
void *value = NULL;
size_t size = 0;
int error;
switch (type) {
case ACL_TYPE_ACCESS:
name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_equiv_mode(acl, &inode->i_mode);
if (error < 0)
return error;
else {
inode->i_ctime = ext4_current_time(inode);
ext4_mark_inode_dirty(handle, inode);
if (error == 0)
acl = NULL;
}
}
break;
case ACL_TYPE_DEFAULT:
name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
default:
return -EINVAL;
}
if (acl) {
value = ext4_acl_to_disk(acl, &size);
if (IS_ERR(value))
return (int)PTR_ERR(value);
}
error = ext4_xattr_set_handle(handle, inode, name_index, "",
value, size, 0);
kfree(value);
if (!error)
set_cached_acl(inode, type, acl);
return error;
} | 215 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __f2fs_set_acl | __f2fs_set_acl( struct inode * inode , int type , struct posix_acl * acl , struct page * ipage) | ['inode', 'type', 'acl', 'ipage'] | static int __f2fs_set_acl(struct inode *inode, int type,
struct posix_acl *acl, struct page *ipage)
{
int name_index;
void *value = NULL;
size_t size = 0;
int error;
switch (type) {
case ACL_TYPE_ACCESS:
name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_equiv_mode(acl, &inode->i_mode);
if (error < 0)
return error;
set_acl_inode(inode, inode->i_mode);
if (error == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:
name_index = F2FS_XATTR_INDEX_POSIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
default:
return -EINVAL;
}
if (acl) {
value = f2fs_acl_to_disk(acl, &size);
if (IS_ERR(value)) {
clear_inode_flag(inode, FI_ACL_MODE);
return (int)PTR_ERR(value);
}
}
error = f2fs_setxattr(inode, name_index, "", value, size, ipage, 0);
kfree(value);
if (!error)
set_cached_acl(inode, type, acl);
clear_inode_flag(inode, FI_ACL_MODE);
return error;
} | 222 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __gfs2_set_acl | __gfs2_set_acl( struct inode * inode , struct posix_acl * acl , int type) | ['inode', 'acl', 'type'] | int __gfs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
int error;
int len;
char *data;
const char *name = gfs2_acl_name(type);
if (acl && acl->a_count > GFS2_ACL_MAX_ENTRIES(GFS2_SB(inode)))
return -E2BIG;
if (type == ACL_TYPE_ACCESS) {
umode_t mode = inode->i_mode;
error = posix_acl_equiv_mode(acl, &mode);
if (error < 0)
return error;
if (error == 0)
acl = NULL;
if (mode != inode->i_mode) {
inode->i_mode = mode;
mark_inode_dirty(inode);
}
}
if (acl) {
len = posix_acl_to_xattr(&init_user_ns, acl, NULL, 0);
if (len == 0)
return 0;
data = kmalloc(len, GFP_NOFS);
if (data == NULL)
return -ENOMEM;
error = posix_acl_to_xattr(&init_user_ns, acl, data, len);
if (error < 0)
goto out;
} else {
data = NULL;
len = 0;
}
error = __gfs2_xattr_set(inode, name, data, len, 0, GFS2_EATYPE_SYS);
if (error)
goto out;
set_cached_acl(inode, type, acl);
out:
kfree(data);
return error;
} | 247 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | hfsplus_set_posix_acl | hfsplus_set_posix_acl( struct inode * inode , struct posix_acl * acl , int type) | ['inode', 'acl', 'type'] | int hfsplus_set_posix_acl(struct inode *inode, struct posix_acl *acl,
int type)
{
int err;
char *xattr_name;
size_t size = 0;
char *value = NULL;
hfs_dbg(ACL_MOD, "[%s]: ino %lu\n", __func__, inode->i_ino);
switch (type) {
case ACL_TYPE_ACCESS:
xattr_name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
err = posix_acl_equiv_mode(acl, &inode->i_mode);
if (err < 0)
return err;
}
err = 0;
break;
case ACL_TYPE_DEFAULT:
xattr_name = XATTR_NAME_POSIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
default:
return -EINVAL;
}
if (acl) {
size = posix_acl_xattr_size(acl->a_count);
if (unlikely(size > HFSPLUS_MAX_INLINE_DATA_SIZE))
return -ENOMEM;
value = (char *)hfsplus_alloc_attr_entry();
if (unlikely(!value))
return -ENOMEM;
err = posix_acl_to_xattr(&init_user_ns, acl, value, size);
if (unlikely(err < 0))
goto end_set_acl;
}
err = __hfsplus_setxattr(inode, xattr_name, value, size, 0);
end_set_acl:
hfsplus_destroy_attr_entry((hfsplus_attr_entry *)value);
if (!err)
set_cached_acl(inode, type, acl);
return err;
} | 246 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | jffs2_set_acl | jffs2_set_acl( struct inode * inode , struct posix_acl * acl , int type) | ['inode', 'acl', 'type'] | int jffs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
int rc, xprefix;
switch (type) {
case ACL_TYPE_ACCESS:
xprefix = JFFS2_XPREFIX_ACL_ACCESS;
if (acl) {
umode_t mode = inode->i_mode;
rc = posix_acl_equiv_mode(acl, &mode);
if (rc < 0)
return rc;
if (inode->i_mode != mode) {
struct iattr attr;
attr.ia_valid = ATTR_MODE | ATTR_CTIME;
attr.ia_mode = mode;
attr.ia_ctime = CURRENT_TIME_SEC;
rc = jffs2_do_setattr(inode, &attr);
if (rc < 0)
return rc;
}
if (rc == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:
xprefix = JFFS2_XPREFIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
default:
return -EINVAL;
}
rc = __jffs2_set_acl(inode, xprefix, acl);
if (!rc)
set_cached_acl(inode, type, acl);
return rc;
} | 193 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __jfs_set_acl | __jfs_set_acl( tid_t tid , struct inode * inode , int type , struct posix_acl * acl) | ['tid', 'inode', 'type', 'acl'] | static int __jfs_set_acl(tid_t tid, struct inode *inode, int type,
struct posix_acl *acl)
{
char *ea_name;
int rc;
int size = 0;
char *value = NULL;
switch (type) {
case ACL_TYPE_ACCESS:
ea_name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
rc = posix_acl_equiv_mode(acl, &inode->i_mode);
if (rc < 0)
return rc;
inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
if (rc == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:
ea_name = XATTR_NAME_POSIX_ACL_DEFAULT;
break;
default:
return -EINVAL;
}
if (acl) {
size = posix_acl_xattr_size(acl->a_count);
value = kmalloc(size, GFP_KERNEL);
if (!value)
return -ENOMEM;
rc = posix_acl_to_xattr(&init_user_ns, acl, value, size);
if (rc < 0)
goto out;
}
rc = __jfs_setxattr(tid, inode, ea_name, value, size, 0);
out:
kfree(value);
if (!rc)
set_cached_acl(inode, type, acl);
return rc;
} | 213 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ocfs2_set_acl | ocfs2_set_acl( handle_t * handle , struct inode * inode , struct buffer_head * di_bh , int type , struct posix_acl * acl , struct ocfs2_alloc_context * meta_ac , struct ocfs2_alloc_context * data_ac) | ['handle', 'inode', 'di_bh', 'type', 'acl', 'meta_ac', 'data_ac'] | int ocfs2_set_acl(handle_t *handle,
struct inode *inode,
struct buffer_head *di_bh,
int type,
struct posix_acl *acl,
struct ocfs2_alloc_context *meta_ac,
struct ocfs2_alloc_context *data_ac)
{
int name_index;
void *value = NULL;
size_t size = 0;
int ret;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
switch (type) {
case ACL_TYPE_ACCESS:
name_index = OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
umode_t mode = inode->i_mode;
ret = posix_acl_equiv_mode(acl, &mode);
if (ret < 0)
return ret;
if (ret == 0)
acl = NULL;
ret = ocfs2_acl_set_mode(inode, di_bh,
handle, mode);
if (ret)
return ret;
}
break;
case ACL_TYPE_DEFAULT:
name_index = OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
default:
return -EINVAL;
}
if (acl) {
value = ocfs2_acl_to_xattr(acl, &size);
if (IS_ERR(value))
return (int)PTR_ERR(value);
}
if (handle)
ret = ocfs2_xattr_set_handle(handle, inode, di_bh, name_index,
"", value, size, 0,
meta_ac, data_ac);
else
ret = ocfs2_xattr_set(inode, name_index, "", value, size, 0);
kfree(value);
return ret;
} | 263 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | orangefs_set_acl | orangefs_set_acl( struct inode * inode , struct posix_acl * acl , int type) | ['inode', 'acl', 'type'] | int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
int error = 0;
void *value = NULL;
size_t size = 0;
const char *name = NULL;
switch (type) {
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
umode_t mode = inode->i_mode;
/*
* can we represent this with the traditional file
* mode permission bits?
*/
error = posix_acl_equiv_mode(acl, &mode);
if (error < 0) {
gossip_err("%s: posix_acl_equiv_mode err: %d\n",
__func__,
error);
return error;
}
if (inode->i_mode != mode)
SetModeFlag(orangefs_inode);
inode->i_mode = mode;
mark_inode_dirty_sync(inode);
if (error == 0)
acl = NULL;
}
break;
case ACL_TYPE_DEFAULT:
name = XATTR_NAME_POSIX_ACL_DEFAULT;
break;
default:
gossip_err("%s: invalid type %d!\n", __func__, type);
return -EINVAL;
}
gossip_debug(GOSSIP_ACL_DEBUG,
"%s: inode %pU, key %s type %d\n",
__func__, get_khandle_from_ino(inode),
name,
type);
if (acl) {
size = posix_acl_xattr_size(acl->a_count);
value = kmalloc(size, GFP_KERNEL);
if (!value)
return -ENOMEM;
error = posix_acl_to_xattr(&init_user_ns, acl, value, size);
if (error < 0)
goto out;
}
gossip_debug(GOSSIP_ACL_DEBUG,
"%s: name %s, value %p, size %zd, acl %p\n",
__func__, name, value, size, acl);
/*
* Go ahead and set the extended attribute now. NOTE: Suppose acl
* was NULL, then value will be NULL and size will be 0 and that
* will xlate to a removexattr. However, we don't want removexattr
* complain if attributes does not exist.
*/
error = orangefs_inode_setxattr(inode, name, value, size, 0);
out:
kfree(value);
if (!error)
set_cached_acl(inode, type, acl);
return error;
} | 296 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __reiserfs_set_acl | __reiserfs_set_acl( struct reiserfs_transaction_handle * th , struct inode * inode , int type , struct posix_acl * acl) | ['th', 'inode', 'type', 'acl'] | __reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
int type, struct posix_acl *acl)
{
char *name;
void *value = NULL;
size_t size = 0;
int error;
switch (type) {
case ACL_TYPE_ACCESS:
name = XATTR_NAME_POSIX_ACL_ACCESS;
if (acl) {
error = posix_acl_equiv_mode(acl, &inode->i_mode);
if (error < 0)
return error;
else {
if (error == 0)
acl = NULL;
}
}
break;
case ACL_TYPE_DEFAULT:
name = XATTR_NAME_POSIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
default:
return -EINVAL;
}
if (acl) {
value = reiserfs_posix_acl_to_disk(acl, &size);
if (IS_ERR(value))
return (int)PTR_ERR(value);
}
error = reiserfs_xattr_set_handle(th, inode, name, value, size, 0);
/*
* Ensure that the inode gets dirtied if we're only using
* the mode bits and an old ACL didn't exist. We don't need
* to check if the inode is hashed here since we won't get
* called by reiserfs_inherit_default_acl().
*/
if (error == -ENODATA) {
error = 0;
if (type == ACL_TYPE_ACCESS) {
inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
}
}
kfree(value);
if (!error)
set_cached_acl(inode, type, acl);
return error;
} | 231 | True | 1 |
|
CVE-2016-7097 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:N | LOCAL | LOW | NONE | PARTIAL | PARTIAL | NONE | 3.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | LOCAL | LOW | LOW | NONE | UNCHANGED | LOW | LOW | NONE | 4.4 | MEDIUM | 1.8 | 2.5 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/08/26/3', 'name': "[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bit", 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1368938', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'name': 'https://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.spinics.net/lists/linux-fsdevel/msg98328.html', 'name': '[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissions', 'refsource': 'MLIST', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://marc.info/?l=linux-fsdevel&m=147162313630259&w=2', 'name': '[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissions', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'http://www.securityfocus.com/bid/92659', 'name': '92659', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3147-1', 'name': 'USN-3147-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-2', 'name': 'USN-3146-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-3146-1', 'name': 'USN-3146-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2669', 'name': 'RHSA-2017:2669', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0817.html', 'name': 'RHSA-2017:0817', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'name': 'https://support.f5.com/csp/article/K31603170?utm_source=f5support&utm_medium=RSS', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-285'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.2', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.'}] | 2018-01-05T02:31Z | 2016-10-16T21:59Z | Improper Authorization | The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. |
Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.
When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.
| https://cwe.mitre.org/data/definitions/285.html | 0 | Jan Kara | 2016-09-19 17:39:09+02:00 | posix_acl: Clear SGID bit when setting file permissions
When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]> | 073931017b49d9458aa351605b43a7e34598caef | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | xfs_set_acl | xfs_set_acl( struct inode * inode , struct posix_acl * acl , int type) | ['inode', 'acl', 'type'] | xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
int error = 0;
if (!acl)
goto set_acl;
error = -E2BIG;
if (acl->a_count > XFS_ACL_MAX_ENTRIES(XFS_M(inode->i_sb)))
return error;
if (type == ACL_TYPE_ACCESS) {
umode_t mode = inode->i_mode;
error = posix_acl_equiv_mode(acl, &mode);
if (error <= 0) {
acl = NULL;
if (error < 0)
return error;
}
error = xfs_set_mode(inode, mode);
if (error)
return error;
}
set_acl:
return __xfs_set_acl(inode, type, acl);
} | 128 | True | 1 |
|
CVE-2016-6213 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | LOCAL | HIGH | LOW | NONE | UNCHANGED | NONE | NONE | HIGH | 4.7 | MEDIUM | 1.0 | 3.6 | nan | [{'url': 'https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498', 'name': 'https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1356471', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1356471', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/07/13/8', 'name': '[oss-security] 20160713 Re: cve request: local DoS by overflowing kernel mount table using shared bind mount', 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/91754', 'name': '91754', 'refsource': 'BID', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-400'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.15', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.'}] | 2018-01-05T02:31Z | 2016-12-28T07:59Z | Uncontrolled Resource Consumption | The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. |
Limited resources include memory, file system storage, database connection pool entries, and CPU. If an attacker can trigger the allocation of these limited resources, but the number or size of the resources is not controlled, then the attacker could cause a denial of service that consumes all available resources. This would prevent valid users from accessing the software, and it could potentially have an impact on the surrounding environment. For example, a memory exhaustion attack against an application could slow down the application as well as its host operating system.
There are at least three distinct scenarios which can commonly lead to resource exhaustion:
Lack of throttling for the number of allocated resources
Losing all references to a resource before reaching the shutdown stage
Not closing/returning a resource after processing
Resource exhaustion problems are often result due to an incorrect implementation of the following situations:
Error conditions and other exceptional circumstances.
Confusion over which part of the program is responsible for releasing the resource.
| https://cwe.mitre.org/data/definitions/400.html | 0 | Eric W. Biederman | 2016-09-28 00:27:17-05:00 | mnt: Add a per mount namespace limit on the number of mounts
CAI Qian <[email protected]> pointed out that the semantics
of shared subtrees make it possible to create an exponentially
increasing number of mounts in a mount namespace.
mkdir /tmp/1 /tmp/2
mount --make-rshared /
for i in $(seq 1 20) ; do mount --bind /tmp/1 /tmp/2 ; done
Will create create 2^20 or 1048576 mounts, which is a practical problem
as some people have managed to hit this by accident.
As such CVE-2016-6213 was assigned.
Ian Kent <[email protected]> described the situation for autofs users
as follows:
> The number of mounts for direct mount maps is usually not very large because of
> the way they are implemented, large direct mount maps can have performance
> problems. There can be anywhere from a few (likely case a few hundred) to less
> than 10000, plus mounts that have been triggered and not yet expired.
>
> Indirect mounts have one autofs mount at the root plus the number of mounts that
> have been triggered and not yet expired.
>
> The number of autofs indirect map entries can range from a few to the common
> case of several thousand and in rare cases up to between 30000 and 50000. I've
> not heard of people with maps larger than 50000 entries.
>
> The larger the number of map entries the greater the possibility for a large
> number of active mounts so it's not hard to expect cases of a 1000 or somewhat
> more active mounts.
So I am setting the default number of mounts allowed per mount
namespace at 100,000. This is more than enough for any use case I
know of, but small enough to quickly stop an exponential increase
in mounts. Which should be perfect to catch misconfigurations and
malfunctioning programs.
For anyone who needs a higher limit this can be changed by writing
to the new /proc/sys/fs/mount-max sysctl.
Tested-by: CAI Qian <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]> | d29216842a85c7970c536108e093963f02714498 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | umount_tree | umount_tree( struct mount * mnt , enum umount_tree_flags how) | ['mnt', 'how'] | static void umount_tree(struct mount *mnt, enum umount_tree_flags how)
{
LIST_HEAD(tmp_list);
struct mount *p;
if (how & UMOUNT_PROPAGATE)
propagate_mount_unlock(mnt);
/* Gather the mounts to umount */
for (p = mnt; p; p = next_mnt(p, mnt)) {
p->mnt.mnt_flags |= MNT_UMOUNT;
list_move(&p->mnt_list, &tmp_list);
}
/* Hide the mounts from mnt_mounts */
list_for_each_entry(p, &tmp_list, mnt_list) {
list_del_init(&p->mnt_child);
}
/* Add propogated mounts to the tmp_list */
if (how & UMOUNT_PROPAGATE)
propagate_umount(&tmp_list);
while (!list_empty(&tmp_list)) {
bool disconnect;
p = list_first_entry(&tmp_list, struct mount, mnt_list);
list_del_init(&p->mnt_expire);
list_del_init(&p->mnt_list);
__touch_mnt_namespace(p->mnt_ns);
p->mnt_ns = NULL;
if (how & UMOUNT_SYNC)
p->mnt.mnt_flags |= MNT_SYNC_UMOUNT;
disconnect = disconnect_mount(p, how);
pin_insert_group(&p->mnt_umount, &p->mnt_parent->mnt,
disconnect ? &unmounted : NULL);
if (mnt_has_parent(p)) {
mnt_add_count(p->mnt_parent, -1);
if (!disconnect) {
/* Don't forget about p */
list_add_tail(&p->mnt_child, &p->mnt_parent->mnt_mounts);
} else {
umount_mnt(p);
}
}
change_mnt_propagation(p, MS_PRIVATE);
}
} | 260 | True | 1 |
|
CVE-2016-6213 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | LOCAL | HIGH | LOW | NONE | UNCHANGED | NONE | NONE | HIGH | 4.7 | MEDIUM | 1.0 | 3.6 | nan | [{'url': 'https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498', 'name': 'https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1356471', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1356471', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/07/13/8', 'name': '[oss-security] 20160713 Re: cve request: local DoS by overflowing kernel mount table using shared bind mount', 'refsource': 'MLIST', 'tags': ['Mailing List']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/91754', 'name': '91754', 'refsource': 'BID', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:2077', 'name': 'RHSA-2017:2077', 'refsource': 'REDHAT', 'tags': []}, {'url': 'https://access.redhat.com/errata/RHSA-2017:1842', 'name': 'RHSA-2017:1842', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-400'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.15', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.'}] | 2018-01-05T02:31Z | 2016-12-28T07:59Z | Uncontrolled Resource Consumption | The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. |
Limited resources include memory, file system storage, database connection pool entries, and CPU. If an attacker can trigger the allocation of these limited resources, but the number or size of the resources is not controlled, then the attacker could cause a denial of service that consumes all available resources. This would prevent valid users from accessing the software, and it could potentially have an impact on the surrounding environment. For example, a memory exhaustion attack against an application could slow down the application as well as its host operating system.
There are at least three distinct scenarios which can commonly lead to resource exhaustion:
Lack of throttling for the number of allocated resources
Losing all references to a resource before reaching the shutdown stage
Not closing/returning a resource after processing
Resource exhaustion problems are often result due to an incorrect implementation of the following situations:
Error conditions and other exceptional circumstances.
Confusion over which part of the program is responsible for releasing the resource.
| https://cwe.mitre.org/data/definitions/400.html | 0 | Eric W. Biederman | 2016-09-28 00:27:17-05:00 | mnt: Add a per mount namespace limit on the number of mounts
CAI Qian <[email protected]> pointed out that the semantics
of shared subtrees make it possible to create an exponentially
increasing number of mounts in a mount namespace.
mkdir /tmp/1 /tmp/2
mount --make-rshared /
for i in $(seq 1 20) ; do mount --bind /tmp/1 /tmp/2 ; done
Will create create 2^20 or 1048576 mounts, which is a practical problem
as some people have managed to hit this by accident.
As such CVE-2016-6213 was assigned.
Ian Kent <[email protected]> described the situation for autofs users
as follows:
> The number of mounts for direct mount maps is usually not very large because of
> the way they are implemented, large direct mount maps can have performance
> problems. There can be anywhere from a few (likely case a few hundred) to less
> than 10000, plus mounts that have been triggered and not yet expired.
>
> Indirect mounts have one autofs mount at the root plus the number of mounts that
> have been triggered and not yet expired.
>
> The number of autofs indirect map entries can range from a few to the common
> case of several thousand and in rare cases up to between 30000 and 50000. I've
> not heard of people with maps larger than 50000 entries.
>
> The larger the number of map entries the greater the possibility for a large
> number of active mounts so it's not hard to expect cases of a 1000 or somewhat
> more active mounts.
So I am setting the default number of mounts allowed per mount
namespace at 100,000. This is more than enough for any use case I
know of, but small enough to quickly stop an exponential increase
in mounts. Which should be perfect to catch misconfigurations and
malfunctioning programs.
For anyone who needs a higher limit this can be changed by writing
to the new /proc/sys/fs/mount-max sysctl.
Tested-by: CAI Qian <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]> | d29216842a85c7970c536108e093963f02714498 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | propagate_one | propagate_one( struct mount * m) | ['m'] | static int propagate_one(struct mount *m)
{
struct mount *child;
int type;
/* skip ones added by this propagate_mnt() */
if (IS_MNT_NEW(m))
return 0;
/* skip if mountpoint isn't covered by it */
if (!is_subdir(mp->m_dentry, m->mnt.mnt_root))
return 0;
if (peers(m, last_dest)) {
type = CL_MAKE_SHARED;
} else {
struct mount *n, *p;
bool done;
for (n = m; ; n = p) {
p = n->mnt_master;
if (p == dest_master || IS_MNT_MARKED(p))
break;
}
do {
struct mount *parent = last_source->mnt_parent;
if (last_source == first_source)
break;
done = parent->mnt_master == p;
if (done && peers(n, parent))
break;
last_source = last_source->mnt_master;
} while (!done);
type = CL_SLAVE;
/* beginning of peer group among the slaves? */
if (IS_MNT_SHARED(m))
type |= CL_MAKE_SHARED;
}
/* Notice when we are propagating across user namespaces */
if (m->mnt_ns->user_ns != user_ns)
type |= CL_UNPRIVILEGED;
child = copy_tree(last_source, last_source->mnt.mnt_root, type);
if (IS_ERR(child))
return PTR_ERR(child);
child->mnt.mnt_flags &= ~MNT_LOCKED;
mnt_set_mountpoint(m, mp, child);
last_dest = m;
last_source = child;
if (m->mnt_master != dest_master) {
read_seqlock_excl(&mount_lock);
SET_MNT_MARK(m->mnt_master);
read_sequnlock_excl(&mount_lock);
}
hlist_add_head(&child->mnt_hash, list);
return 0;
} | 284 | True | 1 |
|
CVE-2016-5195 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | False | [{'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://dirtycow.ninja', 'name': 'https://dirtycow.ninja', 'refsource': 'MISC', 'tags': ['Third Party Advisory']}, {'url': 'https://security-tracker.debian.org/tracker/CVE-2016-5195', 'name': 'https://security-tracker.debian.org/tracker/CVE-2016-5195', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://access.redhat.com/security/cve/cve-2016-5195', 'name': 'https://access.redhat.com/security/cve/cve-2016-5195', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails', 'name': 'https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails', 'refsource': 'MISC', 'tags': ['Third Party Advisory']}, {'url': 'https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5195.html', 'name': 'https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5195.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/dirtycow/dirtycow.github.io/wiki/PoCs', 'name': 'https://github.com/dirtycow/dirtycow.github.io/wiki/PoCs', 'refsource': 'MISC', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619', 'name': 'https://github.com/torvalds/linux/commit/19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.suse.com/show_bug.cgi?id=1004418', 'name': 'https://bugzilla.suse.com/show_bug.cgi?id=1004418', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1384344', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1384344', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/10/26/7', 'name': '[oss-security] 20161026 Re: CVE-2016-5195 "Dirty COW" Linux kernel privilege escalation vulnerability', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://access.redhat.com/security/vulnerabilities/2706661', 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'name': 'USN-3107-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securityfocus.com/archive/1/archive/1/540252/100/0/threaded', 'name': '20170310 [security bulletin] HPESBGN03707 rev.1 - HPE ConvergedSystem 700 2.0 VMware Kit, Remote Increase of Privilege', 'refsource': 'BUGTRAQ', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2022/03/07/1', 'name': '[oss-security] 20220307 CVE-2022-0847: Linux kernel: overwriting read-only files', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2022/08/08/2', 'name': '[oss-security] 20220808 Re: CVE-2022-2590: Linux kernel: Modifying shmem/tmpfs files without write permissions', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2022/08/08/7', 'name': '[oss-security] 20220808 Re: CVE-2022-2590: Linux kernel: Modifying shmem/tmpfs files without write permissions', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2022/08/08/1', 'name': '[oss-security] 20220808 CVE-2022-2590: Linux kernel: Modifying shmem/tmpfs files without write permissions', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2022/08/08/8', 'name': '[oss-security] 20220808 Re: CVE-2022-2590: Linux kernel: Modifying shmem/tmpfs files without write permissions', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2022/08/09/4', 'name': '[oss-security] 20220809 Re: CVE-2022-2590: Linux kernel: Modifying shmem/tmpfs files without write permissions', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2022/08/15/1', 'name': '[oss-security] 20220815 Re: CVE-2022-2590: Linux kernel: Modifying shmem/tmpfs files without write permissions', 'refsource': 'MLIST', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_core:15.04:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionStartIncluding': '2.0.0', 'versionEndExcluding': '4.8.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_tus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:6.7:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_long_life:5.6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_aus:6.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_long_life:5.9:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_aus:6.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:7.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:6.6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_aus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."'}] | 2022-08-15T12:15Z | 2016-11-10T21:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Linus Torvalds | 2016-10-13 13:07:36-07:00 | mm: remove gup_flags FOLL_WRITE games from __get_user_pages()
This is an ancient bug that was actually attempted to be fixed once
(badly) by me eleven years ago in commit 4ceb5db9757a ("Fix
get_user_pages() race for write access") but that was then undone due to
problems on s390 by commit f33ea7f404e5 ("fix get_user_pages bug").
In the meantime, the s390 situation has long been fixed, and we can now
fix it by checking the pte_dirty() bit properly (and do it better). The
s390 dirty bit was implemented in abf09bed3cce ("s390/mm: implement
software dirty bits") which made it into v3.9. Earlier kernels will
have to look at the page state itself.
Also, the VM has become more scalable, and what used a purely
theoretical race back then has become easier to trigger.
To fix it, we introduce a new internal FOLL_COW flag to mark the "yes,
we already did a COW" rather than play racy games with FOLL_WRITE that
is very fundamental, and then use the pte dirty flag to validate that
the FOLL_COW flag is still valid.
Reported-and-tested-by: Phil "not Paul" Oester <[email protected]>
Acked-by: Hugh Dickins <[email protected]>
Reviewed-by: Michal Hocko <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Willy Tarreau <[email protected]>
Cc: Nick Piggin <[email protected]>
Cc: Greg Thelen <[email protected]>
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]> | 19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | faultin_page | faultin_page( struct task_struct * tsk , struct vm_area_struct * vma , unsigned long address , unsigned int * flags , int * nonblocking) | ['tsk', 'vma', 'address', 'flags', 'nonblocking'] | static int faultin_page(struct task_struct *tsk, struct vm_area_struct *vma,
unsigned long address, unsigned int *flags, int *nonblocking)
{
unsigned int fault_flags = 0;
int ret;
/* mlock all present pages, but do not fault in new pages */
if ((*flags & (FOLL_POPULATE | FOLL_MLOCK)) == FOLL_MLOCK)
return -ENOENT;
/* For mm_populate(), just skip the stack guard page. */
if ((*flags & FOLL_POPULATE) &&
(stack_guard_page_start(vma, address) ||
stack_guard_page_end(vma, address + PAGE_SIZE)))
return -ENOENT;
if (*flags & FOLL_WRITE)
fault_flags |= FAULT_FLAG_WRITE;
if (*flags & FOLL_REMOTE)
fault_flags |= FAULT_FLAG_REMOTE;
if (nonblocking)
fault_flags |= FAULT_FLAG_ALLOW_RETRY;
if (*flags & FOLL_NOWAIT)
fault_flags |= FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_RETRY_NOWAIT;
if (*flags & FOLL_TRIED) {
VM_WARN_ON_ONCE(fault_flags & FAULT_FLAG_ALLOW_RETRY);
fault_flags |= FAULT_FLAG_TRIED;
}
ret = handle_mm_fault(vma, address, fault_flags);
if (ret & VM_FAULT_ERROR) {
if (ret & VM_FAULT_OOM)
return -ENOMEM;
if (ret & (VM_FAULT_HWPOISON | VM_FAULT_HWPOISON_LARGE))
return *flags & FOLL_HWPOISON ? -EHWPOISON : -EFAULT;
if (ret & (VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV))
return -EFAULT;
BUG();
}
if (tsk) {
if (ret & VM_FAULT_MAJOR)
tsk->maj_flt++;
else
tsk->min_flt++;
}
if (ret & VM_FAULT_RETRY) {
if (nonblocking)
*nonblocking = 0;
return -EBUSY;
}
/*
* The VM_FAULT_WRITE bit tells us that do_wp_page has broken COW when
* necessary, even if maybe_mkwrite decided not to set pte_write. We
* can thus safely do subsequent page lookups as if they were reads.
* But only do so when looping for pte_write is futile: in some cases
* userspace may also be wanting to write to the gotten user page,
* which a read fault here might prevent (a readonly page might get
* reCOWed by userspace write).
*/
if ((ret & VM_FAULT_WRITE) && !(vma->vm_flags & VM_WRITE))
*flags &= ~FOLL_WRITE;
return 0;
} | 287 | True | 1 |
|
CVE-2016-5195 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | False | [{'url': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://dirtycow.ninja', 'name': 'https://dirtycow.ninja', 'refsource': 'MISC', 'tags': ['Third Party Advisory']}, {'url': 'https://security-tracker.debian.org/tracker/CVE-2016-5195', 'name': 'https://security-tracker.debian.org/tracker/CVE-2016-5195', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://access.redhat.com/security/cve/cve-2016-5195', 'name': 'https://access.redhat.com/security/cve/cve-2016-5195', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails', 'name': 'https://github.com/dirtycow/dirtycow.github.io/wiki/VulnerabilityDetails', 'refsource': 'MISC', 'tags': ['Third Party Advisory']}, {'url': 'https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5195.html', 'name': 'https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5195.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/dirtycow/dirtycow.github.io/wiki/PoCs', 'name': 'https://github.com/dirtycow/dirtycow.github.io/wiki/PoCs', 'refsource': 'MISC', 'tags': ['Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619', 'name': 'https://github.com/torvalds/linux/commit/19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.suse.com/show_bug.cgi?id=1004418', 'name': 'https://bugzilla.suse.com/show_bug.cgi?id=1004418', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1384344', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1384344', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/10/26/7', 'name': '[oss-security] 20161026 Re: CVE-2016-5195 "Dirty COW" Linux kernel privilege escalation vulnerability', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://access.redhat.com/security/vulnerabilities/2706661', 'name': 'https://access.redhat.com/security/vulnerabilities/2706661', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://www.kb.cert.org/vuls/id/243144', 'name': 'VU#243144', 'refsource': 'CERT-VN', 'tags': ['Third Party Advisory', 'US Government Resource']}, {'url': 'http://www.securityfocus.com/bid/93793', 'name': '93793', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://source.android.com/security/bulletin/2016-11-01.html', 'name': 'https://source.android.com/security/bulletin/2016-11-01.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05341463', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05341463', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05347541', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05352241', 'name': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05352241', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://www.exploit-db.com/exploits/40847/', 'name': '40847', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://www.exploit-db.com/exploits/40839/', 'name': '40839', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://kc.mcafee.com/corporate/index?page=content&id=SB10176', 'name': 'https://kc.mcafee.com/corporate/index?page=content&id=SB10176', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://bto.bluecoat.com/security-advisory/sa134', 'name': 'https://bto.bluecoat.com/security-advisory/sa134', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://source.android.com/security/bulletin/2016-12-01.html', 'name': 'https://source.android.com/security/bulletin/2016-12-01.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03722en_us', 'name': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03722en_us', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03707en_us', 'name': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03707en_us', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03742en_us', 'name': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03742en_us', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03761en_us', 'name': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03761en_us', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1037078', 'name': '1037078', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://www.exploit-db.com/exploits/40616/', 'name': '40616', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://www.exploit-db.com/exploits/40611/', 'name': '40611', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://security.netapp.com/advisory/ntap-20161025-0001/', 'name': 'https://security.netapp.com/advisory/ntap-20161025-0001/', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://access.redhat.com/errata/RHSA-2017:0372', 'name': 'RHSA-2017:0372', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2133.html', 'name': 'RHSA-2016:2133', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2132.html', 'name': 'RHSA-2016:2132', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2128.html', 'name': 'RHSA-2016:2128', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2127.html', 'name': 'RHSA-2016:2127', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2126.html', 'name': 'RHSA-2016:2126', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2124.html', 'name': 'RHSA-2016:2124', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2120.html', 'name': 'RHSA-2016:2120', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2118.html', 'name': 'RHSA-2016:2118', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2110.html', 'name': 'RHSA-2016:2110', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2107.html', 'name': 'RHSA-2016:2107', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2106.html', 'name': 'RHSA-2016:2106', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2016-2105.html', 'name': 'RHSA-2016:2105', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, 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'http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10807', 'name': 'http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10807', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://lists.fedoraproject.org/archives/list/[email protected]/message/E7M62SRP6CZLJ4ZXCRZKV4WPLQBSR7DT/', 'name': 'FEDORA-2016-db4b75b352', 'refsource': 'FEDORA', 'tags': []}, {'url': 'http://www.securityfocus.com/archive/1/archive/1/540736/100/0/threaded', 'name': '20170615 [security bulletin] HPESBGN03761 rev.1 - HPE Virtualization Performance Viewer (VPV)/ Cloud Optimizer using Linux, Remote Escalation of Privilege', 'refsource': 'BUGTRAQ', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00052.html', 'name': 'SUSE-SU-2016:2632', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10774', 'name': 'http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10774', 'refsource': 'CONFIRM', 'tags': []}, {'url': 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[{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_core:15.04:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionStartIncluding': '2.0.0', 'versionEndExcluding': '4.8.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_tus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:6.7:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_long_life:5.6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_aus:6.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_long_life:5.9:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_aus:6.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:7.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:6.6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_aus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."'}] | 2022-08-15T12:15Z | 2016-11-10T21:59Z | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. |
This can have security implications when the expected synchronization is in security-critical code, such as recording whether a user is authenticated or modifying important state information that should not be influenced by an outsider.
A race condition occurs within concurrent environments, and is effectively a property of a code sequence. Depending on the context, a code sequence may be in the form of a function call, a small number of instructions, a series of program invocations, etc.
A race condition violates these properties, which are closely related:
Exclusivity - the code sequence is given exclusive access to the shared resource, i.e., no other code sequence can modify properties of the shared resource before the original sequence has completed execution.
Atomicity - the code sequence is behaviorally atomic, i.e., no other thread or process can concurrently execute the same sequence of instructions (or a subset) against the same resource.
A race condition exists when an "interfering code sequence" can still access the shared resource, violating exclusivity. Programmers may assume that certain code sequences execute too quickly to be affected by an interfering code sequence; when they are not, this violates atomicity. For example, the single "x++" statement may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read (the original value of x), followed by a computation (x+1), followed by a write (save the result to x).
The interfering code sequence could be "trusted" or "untrusted." A trusted interfering code sequence occurs within the program; it cannot be modified by the attacker, and it can only be invoked indirectly. An untrusted interfering code sequence can be authored directly by the attacker, and typically it is external to the vulnerable program.
| https://cwe.mitre.org/data/definitions/362.html | 0 | Linus Torvalds | 2016-10-13 13:07:36-07:00 | mm: remove gup_flags FOLL_WRITE games from __get_user_pages()
This is an ancient bug that was actually attempted to be fixed once
(badly) by me eleven years ago in commit 4ceb5db9757a ("Fix
get_user_pages() race for write access") but that was then undone due to
problems on s390 by commit f33ea7f404e5 ("fix get_user_pages bug").
In the meantime, the s390 situation has long been fixed, and we can now
fix it by checking the pte_dirty() bit properly (and do it better). The
s390 dirty bit was implemented in abf09bed3cce ("s390/mm: implement
software dirty bits") which made it into v3.9. Earlier kernels will
have to look at the page state itself.
Also, the VM has become more scalable, and what used a purely
theoretical race back then has become easier to trigger.
To fix it, we introduce a new internal FOLL_COW flag to mark the "yes,
we already did a COW" rather than play racy games with FOLL_WRITE that
is very fundamental, and then use the pte dirty flag to validate that
the FOLL_COW flag is still valid.
Reported-and-tested-by: Phil "not Paul" Oester <[email protected]>
Acked-by: Hugh Dickins <[email protected]>
Reviewed-by: Michal Hocko <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Willy Tarreau <[email protected]>
Cc: Nick Piggin <[email protected]>
Cc: Greg Thelen <[email protected]>
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]> | 19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | follow_page_pte | follow_page_pte( struct vm_area_struct * vma , unsigned long address , pmd_t * pmd , unsigned int flags) | ['vma', 'address', 'pmd', 'flags'] | static struct page *follow_page_pte(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmd, unsigned int flags)
{
struct mm_struct *mm = vma->vm_mm;
struct dev_pagemap *pgmap = NULL;
struct page *page;
spinlock_t *ptl;
pte_t *ptep, pte;
retry:
if (unlikely(pmd_bad(*pmd)))
return no_page_table(vma, flags);
ptep = pte_offset_map_lock(mm, pmd, address, &ptl);
pte = *ptep;
if (!pte_present(pte)) {
swp_entry_t entry;
/*
* KSM's break_ksm() relies upon recognizing a ksm page
* even while it is being migrated, so for that case we
* need migration_entry_wait().
*/
if (likely(!(flags & FOLL_MIGRATION)))
goto no_page;
if (pte_none(pte))
goto no_page;
entry = pte_to_swp_entry(pte);
if (!is_migration_entry(entry))
goto no_page;
pte_unmap_unlock(ptep, ptl);
migration_entry_wait(mm, pmd, address);
goto retry;
}
if ((flags & FOLL_NUMA) && pte_protnone(pte))
goto no_page;
if ((flags & FOLL_WRITE) && !pte_write(pte)) {
pte_unmap_unlock(ptep, ptl);
return NULL;
}
page = vm_normal_page(vma, address, pte);
if (!page && pte_devmap(pte) && (flags & FOLL_GET)) {
/*
* Only return device mapping pages in the FOLL_GET case since
* they are only valid while holding the pgmap reference.
*/
pgmap = get_dev_pagemap(pte_pfn(pte), NULL);
if (pgmap)
page = pte_page(pte);
else
goto no_page;
} else if (unlikely(!page)) {
if (flags & FOLL_DUMP) {
/* Avoid special (like zero) pages in core dumps */
page = ERR_PTR(-EFAULT);
goto out;
}
if (is_zero_pfn(pte_pfn(pte))) {
page = pte_page(pte);
} else {
int ret;
ret = follow_pfn_pte(vma, address, ptep, flags);
page = ERR_PTR(ret);
goto out;
}
}
if (flags & FOLL_SPLIT && PageTransCompound(page)) {
int ret;
get_page(page);
pte_unmap_unlock(ptep, ptl);
lock_page(page);
ret = split_huge_page(page);
unlock_page(page);
put_page(page);
if (ret)
return ERR_PTR(ret);
goto retry;
}
if (flags & FOLL_GET) {
get_page(page);
/* drop the pgmap reference now that we hold the page */
if (pgmap) {
put_dev_pagemap(pgmap);
pgmap = NULL;
}
}
if (flags & FOLL_TOUCH) {
if ((flags & FOLL_WRITE) &&
!pte_dirty(pte) && !PageDirty(page))
set_page_dirty(page);
/*
* pte_mkyoung() would be more correct here, but atomic care
* is needed to avoid losing the dirty bit: it is easier to use
* mark_page_accessed().
*/
mark_page_accessed(page);
}
if ((flags & FOLL_MLOCK) && (vma->vm_flags & VM_LOCKED)) {
/* Do not mlock pte-mapped THP */
if (PageTransCompound(page))
goto out;
/*
* The preliminary mapping check is mainly to avoid the
* pointless overhead of lock_page on the ZERO_PAGE
* which might bounce very badly if there is contention.
*
* If the page is already locked, we don't need to
* handle it now - vmscan will handle it later if and
* when it attempts to reclaim the page.
*/
if (page->mapping && trylock_page(page)) {
lru_add_drain(); /* push cached pages to LRU */
/*
* Because we lock page here, and migration is
* blocked by the pte's page reference, and we
* know the page is still mapped, we don't even
* need to check for file-cache page truncation.
*/
mlock_vma_page(page);
unlock_page(page);
}
}
out:
pte_unmap_unlock(ptep, ptl);
return page;
no_page:
pte_unmap_unlock(ptep, ptl);
if (!pte_none(pte))
return NULL;
return no_page_table(vma, flags);
} | 567 | True | 1 |
|
CVE-2016-9083 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | True | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05692d7005a364add85c6e25a6c4447ce08f913a', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05692d7005a364add85c6e25a6c4447ce08f913a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Vendor Advisory']}, {'url': 'https://patchwork.kernel.org/patch/9373631/', 'name': 'https://patchwork.kernel.org/patch/9373631/', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/10/26/11', 'name': '[oss-security] 20161027 kernel: low-severity vfio driver integer overflow', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a', 'name': 'https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1389258', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1389258', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.securityfocus.com/bid/93929', 'name': '93929', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0387.html', 'name': 'RHSA-2017:0387', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0386.html', 'name': 'RHSA-2017:0386', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}, {'lang': 'en', 'value': 'CWE-190'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.11', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'drivers/vfio/pci/vfio_pci.c in the Linux kernel through 4.8.11 allows local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a "state machine confusion bug."'}] | 2018-01-05T02:31Z | 2016-11-28T03:59Z | Improper Restriction of Operations within the Bounds of a Memory Buffer | The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. |
Certain languages allow direct addressing of memory locations and do not automatically ensure that these locations are valid for the memory buffer that is being referenced. This can cause read or write operations to be performed on memory locations that may be associated with other variables, data structures, or internal program data.
As a result, an attacker may be able to execute arbitrary code, alter the intended control flow, read sensitive information, or cause the system to crash.
| https://cwe.mitre.org/data/definitions/119.html | 0 | Vlad Tsyrklevich | 2016-10-12 18:51:24+02:00 | vfio/pci: Fix integer overflows, bitmask check
The VFIO_DEVICE_SET_IRQS ioctl did not sufficiently sanitize
user-supplied integers, potentially allowing memory corruption. This
patch adds appropriate integer overflow checks, checks the range bounds
for VFIO_IRQ_SET_DATA_NONE, and also verifies that only single element
in the VFIO_IRQ_SET_DATA_TYPE_MASK bitmask is set.
VFIO_IRQ_SET_ACTION_TYPE_MASK is already correctly checked later in
vfio_pci_set_irqs_ioctl().
Furthermore, a kzalloc is changed to a kcalloc because the use of a
kzalloc with an integer multiplication allowed an integer overflow
condition to be reached without this patch. kcalloc checks for overflow
and should prevent a similar occurrence.
Signed-off-by: Vlad Tsyrklevich <[email protected]>
Signed-off-by: Alex Williamson <[email protected]> | 05692d7005a364add85c6e25a6c4447ce08f913a | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | vfio_pci_ioctl | vfio_pci_ioctl( void * device_data , unsigned int cmd , unsigned long arg) | ['device_data', 'cmd', 'arg'] | static long vfio_pci_ioctl(void *device_data,
unsigned int cmd, unsigned long arg)
{
struct vfio_pci_device *vdev = device_data;
unsigned long minsz;
if (cmd == VFIO_DEVICE_GET_INFO) {
struct vfio_device_info info;
minsz = offsetofend(struct vfio_device_info, num_irqs);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
return -EINVAL;
info.flags = VFIO_DEVICE_FLAGS_PCI;
if (vdev->reset_works)
info.flags |= VFIO_DEVICE_FLAGS_RESET;
info.num_regions = VFIO_PCI_NUM_REGIONS + vdev->num_regions;
info.num_irqs = VFIO_PCI_NUM_IRQS;
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_REGION_INFO) {
struct pci_dev *pdev = vdev->pdev;
struct vfio_region_info info;
struct vfio_info_cap caps = { .buf = NULL, .size = 0 };
int i, ret;
minsz = offsetofend(struct vfio_region_info, offset);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
return -EINVAL;
switch (info.index) {
case VFIO_PCI_CONFIG_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = pdev->cfg_size;
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
break;
case VFIO_PCI_BAR0_REGION_INDEX ... VFIO_PCI_BAR5_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = pci_resource_len(pdev, info.index);
if (!info.size) {
info.flags = 0;
break;
}
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
if (vdev->bar_mmap_supported[info.index]) {
info.flags |= VFIO_REGION_INFO_FLAG_MMAP;
if (info.index == vdev->msix_bar) {
ret = msix_sparse_mmap_cap(vdev, &caps);
if (ret)
return ret;
}
}
break;
case VFIO_PCI_ROM_REGION_INDEX:
{
void __iomem *io;
size_t size;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.flags = 0;
/* Report the BAR size, not the ROM size */
info.size = pci_resource_len(pdev, info.index);
if (!info.size) {
/* Shadow ROMs appear as PCI option ROMs */
if (pdev->resource[PCI_ROM_RESOURCE].flags &
IORESOURCE_ROM_SHADOW)
info.size = 0x20000;
else
break;
}
/* Is it really there? */
io = pci_map_rom(pdev, &size);
if (!io || !size) {
info.size = 0;
break;
}
pci_unmap_rom(pdev, io);
info.flags = VFIO_REGION_INFO_FLAG_READ;
break;
}
case VFIO_PCI_VGA_REGION_INDEX:
if (!vdev->has_vga)
return -EINVAL;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = 0xc0000;
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
break;
default:
if (info.index >=
VFIO_PCI_NUM_REGIONS + vdev->num_regions)
return -EINVAL;
i = info.index - VFIO_PCI_NUM_REGIONS;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = vdev->region[i].size;
info.flags = vdev->region[i].flags;
ret = region_type_cap(vdev, &caps,
vdev->region[i].type,
vdev->region[i].subtype);
if (ret)
return ret;
}
if (caps.size) {
info.flags |= VFIO_REGION_INFO_FLAG_CAPS;
if (info.argsz < sizeof(info) + caps.size) {
info.argsz = sizeof(info) + caps.size;
info.cap_offset = 0;
} else {
vfio_info_cap_shift(&caps, sizeof(info));
if (copy_to_user((void __user *)arg +
sizeof(info), caps.buf,
caps.size)) {
kfree(caps.buf);
return -EFAULT;
}
info.cap_offset = sizeof(info);
}
kfree(caps.buf);
}
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) {
struct vfio_irq_info info;
minsz = offsetofend(struct vfio_irq_info, count);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz || info.index >= VFIO_PCI_NUM_IRQS)
return -EINVAL;
switch (info.index) {
case VFIO_PCI_INTX_IRQ_INDEX ... VFIO_PCI_MSIX_IRQ_INDEX:
case VFIO_PCI_REQ_IRQ_INDEX:
break;
case VFIO_PCI_ERR_IRQ_INDEX:
if (pci_is_pcie(vdev->pdev))
break;
/* pass thru to return error */
default:
return -EINVAL;
}
info.flags = VFIO_IRQ_INFO_EVENTFD;
info.count = vfio_pci_get_irq_count(vdev, info.index);
if (info.index == VFIO_PCI_INTX_IRQ_INDEX)
info.flags |= (VFIO_IRQ_INFO_MASKABLE |
VFIO_IRQ_INFO_AUTOMASKED);
else
info.flags |= VFIO_IRQ_INFO_NORESIZE;
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_SET_IRQS) {
struct vfio_irq_set hdr;
u8 *data = NULL;
int ret = 0;
minsz = offsetofend(struct vfio_irq_set, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz || hdr.index >= VFIO_PCI_NUM_IRQS ||
hdr.flags & ~(VFIO_IRQ_SET_DATA_TYPE_MASK |
VFIO_IRQ_SET_ACTION_TYPE_MASK))
return -EINVAL;
if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
size_t size;
int max = vfio_pci_get_irq_count(vdev, hdr.index);
if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL)
size = sizeof(uint8_t);
else if (hdr.flags & VFIO_IRQ_SET_DATA_EVENTFD)
size = sizeof(int32_t);
else
return -EINVAL;
if (hdr.argsz - minsz < hdr.count * size ||
hdr.start >= max || hdr.start + hdr.count > max)
return -EINVAL;
data = memdup_user((void __user *)(arg + minsz),
hdr.count * size);
if (IS_ERR(data))
return PTR_ERR(data);
}
mutex_lock(&vdev->igate);
ret = vfio_pci_set_irqs_ioctl(vdev, hdr.flags, hdr.index,
hdr.start, hdr.count, data);
mutex_unlock(&vdev->igate);
kfree(data);
return ret;
} else if (cmd == VFIO_DEVICE_RESET) {
return vdev->reset_works ?
pci_try_reset_function(vdev->pdev) : -EINVAL;
} else if (cmd == VFIO_DEVICE_GET_PCI_HOT_RESET_INFO) {
struct vfio_pci_hot_reset_info hdr;
struct vfio_pci_fill_info fill = { 0 };
struct vfio_pci_dependent_device *devices = NULL;
bool slot = false;
int ret = 0;
minsz = offsetofend(struct vfio_pci_hot_reset_info, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz)
return -EINVAL;
hdr.flags = 0;
/* Can we do a slot or bus reset or neither? */
if (!pci_probe_reset_slot(vdev->pdev->slot))
slot = true;
else if (pci_probe_reset_bus(vdev->pdev->bus))
return -ENODEV;
/* How many devices are affected? */
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_count_devs,
&fill.max, slot);
if (ret)
return ret;
WARN_ON(!fill.max); /* Should always be at least one */
/*
* If there's enough space, fill it now, otherwise return
* -ENOSPC and the number of devices affected.
*/
if (hdr.argsz < sizeof(hdr) + (fill.max * sizeof(*devices))) {
ret = -ENOSPC;
hdr.count = fill.max;
goto reset_info_exit;
}
devices = kcalloc(fill.max, sizeof(*devices), GFP_KERNEL);
if (!devices)
return -ENOMEM;
fill.devices = devices;
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_fill_devs,
&fill, slot);
/*
* If a device was removed between counting and filling,
* we may come up short of fill.max. If a device was
* added, we'll have a return of -EAGAIN above.
*/
if (!ret)
hdr.count = fill.cur;
reset_info_exit:
if (copy_to_user((void __user *)arg, &hdr, minsz))
ret = -EFAULT;
if (!ret) {
if (copy_to_user((void __user *)(arg + minsz), devices,
hdr.count * sizeof(*devices)))
ret = -EFAULT;
}
kfree(devices);
return ret;
} else if (cmd == VFIO_DEVICE_PCI_HOT_RESET) {
struct vfio_pci_hot_reset hdr;
int32_t *group_fds;
struct vfio_pci_group_entry *groups;
struct vfio_pci_group_info info;
bool slot = false;
int i, count = 0, ret = 0;
minsz = offsetofend(struct vfio_pci_hot_reset, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz || hdr.flags)
return -EINVAL;
/* Can we do a slot or bus reset or neither? */
if (!pci_probe_reset_slot(vdev->pdev->slot))
slot = true;
else if (pci_probe_reset_bus(vdev->pdev->bus))
return -ENODEV;
/*
* We can't let userspace give us an arbitrarily large
* buffer to copy, so verify how many we think there
* could be. Note groups can have multiple devices so
* one group per device is the max.
*/
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_count_devs,
&count, slot);
if (ret)
return ret;
/* Somewhere between 1 and count is OK */
if (!hdr.count || hdr.count > count)
return -EINVAL;
group_fds = kcalloc(hdr.count, sizeof(*group_fds), GFP_KERNEL);
groups = kcalloc(hdr.count, sizeof(*groups), GFP_KERNEL);
if (!group_fds || !groups) {
kfree(group_fds);
kfree(groups);
return -ENOMEM;
}
if (copy_from_user(group_fds, (void __user *)(arg + minsz),
hdr.count * sizeof(*group_fds))) {
kfree(group_fds);
kfree(groups);
return -EFAULT;
}
/*
* For each group_fd, get the group through the vfio external
* user interface and store the group and iommu ID. This
* ensures the group is held across the reset.
*/
for (i = 0; i < hdr.count; i++) {
struct vfio_group *group;
struct fd f = fdget(group_fds[i]);
if (!f.file) {
ret = -EBADF;
break;
}
group = vfio_group_get_external_user(f.file);
fdput(f);
if (IS_ERR(group)) {
ret = PTR_ERR(group);
break;
}
groups[i].group = group;
groups[i].id = vfio_external_user_iommu_id(group);
}
kfree(group_fds);
/* release reference to groups on error */
if (ret)
goto hot_reset_release;
info.count = hdr.count;
info.groups = groups;
/*
* Test whether all the affected devices are contained
* by the set of groups provided by the user.
*/
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_validate_devs,
&info, slot);
if (!ret)
/* User has access, do the reset */
ret = slot ? pci_try_reset_slot(vdev->pdev->slot) :
pci_try_reset_bus(vdev->pdev->bus);
hot_reset_release:
for (i--; i >= 0; i--)
vfio_group_put_external_user(groups[i].group);
kfree(groups);
return ret;
}
return -ENOTTY;
} | 2013 | True | 1 |
|
CVE-2016-9083 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | True | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05692d7005a364add85c6e25a6c4447ce08f913a', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05692d7005a364add85c6e25a6c4447ce08f913a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Vendor Advisory']}, {'url': 'https://patchwork.kernel.org/patch/9373631/', 'name': 'https://patchwork.kernel.org/patch/9373631/', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/10/26/11', 'name': '[oss-security] 20161027 kernel: low-severity vfio driver integer overflow', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a', 'name': 'https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1389258', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1389258', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'http://www.securityfocus.com/bid/93929', 'name': '93929', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0387.html', 'name': 'RHSA-2017:0387', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0386.html', 'name': 'RHSA-2017:0386', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}, {'lang': 'en', 'value': 'CWE-190'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.11', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'drivers/vfio/pci/vfio_pci.c in the Linux kernel through 4.8.11 allows local users to bypass integer overflow checks, and cause a denial of service (memory corruption) or have unspecified other impact, by leveraging access to a vfio PCI device file for a VFIO_DEVICE_SET_IRQS ioctl call, aka a "state machine confusion bug."'}] | 2018-01-05T02:31Z | 2016-11-28T03:59Z | Integer Overflow or Wraparound | The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. | An integer overflow or wraparound occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may wrap to become a very small or negative number. While this may be intended behavior in circumstances that rely on wrapping, it can have security consequences if the wrap is unexpected. This is especially the case if the integer overflow can be triggered using user-supplied inputs. This becomes security-critical when the result is used to control looping, make a security decision, or determine the offset or size in behaviors such as memory allocation, copying, concatenation, etc.
| https://cwe.mitre.org/data/definitions/190.html | 0 | Vlad Tsyrklevich | 2016-10-12 18:51:24+02:00 | vfio/pci: Fix integer overflows, bitmask check
The VFIO_DEVICE_SET_IRQS ioctl did not sufficiently sanitize
user-supplied integers, potentially allowing memory corruption. This
patch adds appropriate integer overflow checks, checks the range bounds
for VFIO_IRQ_SET_DATA_NONE, and also verifies that only single element
in the VFIO_IRQ_SET_DATA_TYPE_MASK bitmask is set.
VFIO_IRQ_SET_ACTION_TYPE_MASK is already correctly checked later in
vfio_pci_set_irqs_ioctl().
Furthermore, a kzalloc is changed to a kcalloc because the use of a
kzalloc with an integer multiplication allowed an integer overflow
condition to be reached without this patch. kcalloc checks for overflow
and should prevent a similar occurrence.
Signed-off-by: Vlad Tsyrklevich <[email protected]>
Signed-off-by: Alex Williamson <[email protected]> | 05692d7005a364add85c6e25a6c4447ce08f913a | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | vfio_pci_ioctl | vfio_pci_ioctl( void * device_data , unsigned int cmd , unsigned long arg) | ['device_data', 'cmd', 'arg'] | static long vfio_pci_ioctl(void *device_data,
unsigned int cmd, unsigned long arg)
{
struct vfio_pci_device *vdev = device_data;
unsigned long minsz;
if (cmd == VFIO_DEVICE_GET_INFO) {
struct vfio_device_info info;
minsz = offsetofend(struct vfio_device_info, num_irqs);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
return -EINVAL;
info.flags = VFIO_DEVICE_FLAGS_PCI;
if (vdev->reset_works)
info.flags |= VFIO_DEVICE_FLAGS_RESET;
info.num_regions = VFIO_PCI_NUM_REGIONS + vdev->num_regions;
info.num_irqs = VFIO_PCI_NUM_IRQS;
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_REGION_INFO) {
struct pci_dev *pdev = vdev->pdev;
struct vfio_region_info info;
struct vfio_info_cap caps = { .buf = NULL, .size = 0 };
int i, ret;
minsz = offsetofend(struct vfio_region_info, offset);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
return -EINVAL;
switch (info.index) {
case VFIO_PCI_CONFIG_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = pdev->cfg_size;
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
break;
case VFIO_PCI_BAR0_REGION_INDEX ... VFIO_PCI_BAR5_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = pci_resource_len(pdev, info.index);
if (!info.size) {
info.flags = 0;
break;
}
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
if (vdev->bar_mmap_supported[info.index]) {
info.flags |= VFIO_REGION_INFO_FLAG_MMAP;
if (info.index == vdev->msix_bar) {
ret = msix_sparse_mmap_cap(vdev, &caps);
if (ret)
return ret;
}
}
break;
case VFIO_PCI_ROM_REGION_INDEX:
{
void __iomem *io;
size_t size;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.flags = 0;
/* Report the BAR size, not the ROM size */
info.size = pci_resource_len(pdev, info.index);
if (!info.size) {
/* Shadow ROMs appear as PCI option ROMs */
if (pdev->resource[PCI_ROM_RESOURCE].flags &
IORESOURCE_ROM_SHADOW)
info.size = 0x20000;
else
break;
}
/* Is it really there? */
io = pci_map_rom(pdev, &size);
if (!io || !size) {
info.size = 0;
break;
}
pci_unmap_rom(pdev, io);
info.flags = VFIO_REGION_INFO_FLAG_READ;
break;
}
case VFIO_PCI_VGA_REGION_INDEX:
if (!vdev->has_vga)
return -EINVAL;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = 0xc0000;
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
break;
default:
if (info.index >=
VFIO_PCI_NUM_REGIONS + vdev->num_regions)
return -EINVAL;
i = info.index - VFIO_PCI_NUM_REGIONS;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = vdev->region[i].size;
info.flags = vdev->region[i].flags;
ret = region_type_cap(vdev, &caps,
vdev->region[i].type,
vdev->region[i].subtype);
if (ret)
return ret;
}
if (caps.size) {
info.flags |= VFIO_REGION_INFO_FLAG_CAPS;
if (info.argsz < sizeof(info) + caps.size) {
info.argsz = sizeof(info) + caps.size;
info.cap_offset = 0;
} else {
vfio_info_cap_shift(&caps, sizeof(info));
if (copy_to_user((void __user *)arg +
sizeof(info), caps.buf,
caps.size)) {
kfree(caps.buf);
return -EFAULT;
}
info.cap_offset = sizeof(info);
}
kfree(caps.buf);
}
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) {
struct vfio_irq_info info;
minsz = offsetofend(struct vfio_irq_info, count);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz || info.index >= VFIO_PCI_NUM_IRQS)
return -EINVAL;
switch (info.index) {
case VFIO_PCI_INTX_IRQ_INDEX ... VFIO_PCI_MSIX_IRQ_INDEX:
case VFIO_PCI_REQ_IRQ_INDEX:
break;
case VFIO_PCI_ERR_IRQ_INDEX:
if (pci_is_pcie(vdev->pdev))
break;
/* pass thru to return error */
default:
return -EINVAL;
}
info.flags = VFIO_IRQ_INFO_EVENTFD;
info.count = vfio_pci_get_irq_count(vdev, info.index);
if (info.index == VFIO_PCI_INTX_IRQ_INDEX)
info.flags |= (VFIO_IRQ_INFO_MASKABLE |
VFIO_IRQ_INFO_AUTOMASKED);
else
info.flags |= VFIO_IRQ_INFO_NORESIZE;
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_SET_IRQS) {
struct vfio_irq_set hdr;
u8 *data = NULL;
int ret = 0;
minsz = offsetofend(struct vfio_irq_set, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz || hdr.index >= VFIO_PCI_NUM_IRQS ||
hdr.flags & ~(VFIO_IRQ_SET_DATA_TYPE_MASK |
VFIO_IRQ_SET_ACTION_TYPE_MASK))
return -EINVAL;
if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
size_t size;
int max = vfio_pci_get_irq_count(vdev, hdr.index);
if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL)
size = sizeof(uint8_t);
else if (hdr.flags & VFIO_IRQ_SET_DATA_EVENTFD)
size = sizeof(int32_t);
else
return -EINVAL;
if (hdr.argsz - minsz < hdr.count * size ||
hdr.start >= max || hdr.start + hdr.count > max)
return -EINVAL;
data = memdup_user((void __user *)(arg + minsz),
hdr.count * size);
if (IS_ERR(data))
return PTR_ERR(data);
}
mutex_lock(&vdev->igate);
ret = vfio_pci_set_irqs_ioctl(vdev, hdr.flags, hdr.index,
hdr.start, hdr.count, data);
mutex_unlock(&vdev->igate);
kfree(data);
return ret;
} else if (cmd == VFIO_DEVICE_RESET) {
return vdev->reset_works ?
pci_try_reset_function(vdev->pdev) : -EINVAL;
} else if (cmd == VFIO_DEVICE_GET_PCI_HOT_RESET_INFO) {
struct vfio_pci_hot_reset_info hdr;
struct vfio_pci_fill_info fill = { 0 };
struct vfio_pci_dependent_device *devices = NULL;
bool slot = false;
int ret = 0;
minsz = offsetofend(struct vfio_pci_hot_reset_info, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz)
return -EINVAL;
hdr.flags = 0;
/* Can we do a slot or bus reset or neither? */
if (!pci_probe_reset_slot(vdev->pdev->slot))
slot = true;
else if (pci_probe_reset_bus(vdev->pdev->bus))
return -ENODEV;
/* How many devices are affected? */
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_count_devs,
&fill.max, slot);
if (ret)
return ret;
WARN_ON(!fill.max); /* Should always be at least one */
/*
* If there's enough space, fill it now, otherwise return
* -ENOSPC and the number of devices affected.
*/
if (hdr.argsz < sizeof(hdr) + (fill.max * sizeof(*devices))) {
ret = -ENOSPC;
hdr.count = fill.max;
goto reset_info_exit;
}
devices = kcalloc(fill.max, sizeof(*devices), GFP_KERNEL);
if (!devices)
return -ENOMEM;
fill.devices = devices;
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_fill_devs,
&fill, slot);
/*
* If a device was removed between counting and filling,
* we may come up short of fill.max. If a device was
* added, we'll have a return of -EAGAIN above.
*/
if (!ret)
hdr.count = fill.cur;
reset_info_exit:
if (copy_to_user((void __user *)arg, &hdr, minsz))
ret = -EFAULT;
if (!ret) {
if (copy_to_user((void __user *)(arg + minsz), devices,
hdr.count * sizeof(*devices)))
ret = -EFAULT;
}
kfree(devices);
return ret;
} else if (cmd == VFIO_DEVICE_PCI_HOT_RESET) {
struct vfio_pci_hot_reset hdr;
int32_t *group_fds;
struct vfio_pci_group_entry *groups;
struct vfio_pci_group_info info;
bool slot = false;
int i, count = 0, ret = 0;
minsz = offsetofend(struct vfio_pci_hot_reset, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz || hdr.flags)
return -EINVAL;
/* Can we do a slot or bus reset or neither? */
if (!pci_probe_reset_slot(vdev->pdev->slot))
slot = true;
else if (pci_probe_reset_bus(vdev->pdev->bus))
return -ENODEV;
/*
* We can't let userspace give us an arbitrarily large
* buffer to copy, so verify how many we think there
* could be. Note groups can have multiple devices so
* one group per device is the max.
*/
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_count_devs,
&count, slot);
if (ret)
return ret;
/* Somewhere between 1 and count is OK */
if (!hdr.count || hdr.count > count)
return -EINVAL;
group_fds = kcalloc(hdr.count, sizeof(*group_fds), GFP_KERNEL);
groups = kcalloc(hdr.count, sizeof(*groups), GFP_KERNEL);
if (!group_fds || !groups) {
kfree(group_fds);
kfree(groups);
return -ENOMEM;
}
if (copy_from_user(group_fds, (void __user *)(arg + minsz),
hdr.count * sizeof(*group_fds))) {
kfree(group_fds);
kfree(groups);
return -EFAULT;
}
/*
* For each group_fd, get the group through the vfio external
* user interface and store the group and iommu ID. This
* ensures the group is held across the reset.
*/
for (i = 0; i < hdr.count; i++) {
struct vfio_group *group;
struct fd f = fdget(group_fds[i]);
if (!f.file) {
ret = -EBADF;
break;
}
group = vfio_group_get_external_user(f.file);
fdput(f);
if (IS_ERR(group)) {
ret = PTR_ERR(group);
break;
}
groups[i].group = group;
groups[i].id = vfio_external_user_iommu_id(group);
}
kfree(group_fds);
/* release reference to groups on error */
if (ret)
goto hot_reset_release;
info.count = hdr.count;
info.groups = groups;
/*
* Test whether all the affected devices are contained
* by the set of groups provided by the user.
*/
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_validate_devs,
&info, slot);
if (!ret)
/* User has access, do the reset */
ret = slot ? pci_try_reset_slot(vdev->pdev->slot) :
pci_try_reset_bus(vdev->pdev->bus);
hot_reset_release:
for (i--; i >= 0; i--)
vfio_group_put_external_user(groups[i].group);
kfree(groups);
return ret;
}
return -ENOTTY;
} | 2013 | True | 1 |
|
CVE-2016-9084 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:P | LOCAL | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 4.6 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | LOCAL | LOW | LOW | NONE | UNCHANGED | HIGH | HIGH | HIGH | 7.8 | HIGH | 1.8 | 5.9 | True | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05692d7005a364add85c6e25a6c4447ce08f913a', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=05692d7005a364add85c6e25a6c4447ce08f913a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1389259', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1389259', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://patchwork.kernel.org/patch/9373631/', 'name': 'https://patchwork.kernel.org/patch/9373631/', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2016/10/26/11', 'name': '[oss-security] 20161027 kernel: low-severity vfio driver integer overflow', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a', 'name': 'https://github.com/torvalds/linux/commit/05692d7005a364add85c6e25a6c4447ce08f913a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/93930', 'name': '93930', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0387.html', 'name': 'RHSA-2017:0387', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2017-0386.html', 'name': 'RHSA-2017:0386', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-190'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '4.8.11', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'drivers/vfio/pci/vfio_pci_intrs.c in the Linux kernel through 4.8.11 misuses the kzalloc function, which allows local users to cause a denial of service (integer overflow) or have unspecified other impact by leveraging access to a vfio PCI device file.'}] | 2018-01-05T02:31Z | 2016-11-28T03:59Z | Integer Overflow or Wraparound | The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. | An integer overflow or wraparound occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may wrap to become a very small or negative number. While this may be intended behavior in circumstances that rely on wrapping, it can have security consequences if the wrap is unexpected. This is especially the case if the integer overflow can be triggered using user-supplied inputs. This becomes security-critical when the result is used to control looping, make a security decision, or determine the offset or size in behaviors such as memory allocation, copying, concatenation, etc.
| https://cwe.mitre.org/data/definitions/190.html | 0 | Vlad Tsyrklevich | 2016-10-12 18:51:24+02:00 | vfio/pci: Fix integer overflows, bitmask check
The VFIO_DEVICE_SET_IRQS ioctl did not sufficiently sanitize
user-supplied integers, potentially allowing memory corruption. This
patch adds appropriate integer overflow checks, checks the range bounds
for VFIO_IRQ_SET_DATA_NONE, and also verifies that only single element
in the VFIO_IRQ_SET_DATA_TYPE_MASK bitmask is set.
VFIO_IRQ_SET_ACTION_TYPE_MASK is already correctly checked later in
vfio_pci_set_irqs_ioctl().
Furthermore, a kzalloc is changed to a kcalloc because the use of a
kzalloc with an integer multiplication allowed an integer overflow
condition to be reached without this patch. kcalloc checks for overflow
and should prevent a similar occurrence.
Signed-off-by: Vlad Tsyrklevich <[email protected]>
Signed-off-by: Alex Williamson <[email protected]> | 05692d7005a364add85c6e25a6c4447ce08f913a | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | vfio_pci_ioctl | vfio_pci_ioctl( void * device_data , unsigned int cmd , unsigned long arg) | ['device_data', 'cmd', 'arg'] | static long vfio_pci_ioctl(void *device_data,
unsigned int cmd, unsigned long arg)
{
struct vfio_pci_device *vdev = device_data;
unsigned long minsz;
if (cmd == VFIO_DEVICE_GET_INFO) {
struct vfio_device_info info;
minsz = offsetofend(struct vfio_device_info, num_irqs);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
return -EINVAL;
info.flags = VFIO_DEVICE_FLAGS_PCI;
if (vdev->reset_works)
info.flags |= VFIO_DEVICE_FLAGS_RESET;
info.num_regions = VFIO_PCI_NUM_REGIONS + vdev->num_regions;
info.num_irqs = VFIO_PCI_NUM_IRQS;
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_REGION_INFO) {
struct pci_dev *pdev = vdev->pdev;
struct vfio_region_info info;
struct vfio_info_cap caps = { .buf = NULL, .size = 0 };
int i, ret;
minsz = offsetofend(struct vfio_region_info, offset);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
return -EINVAL;
switch (info.index) {
case VFIO_PCI_CONFIG_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = pdev->cfg_size;
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
break;
case VFIO_PCI_BAR0_REGION_INDEX ... VFIO_PCI_BAR5_REGION_INDEX:
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = pci_resource_len(pdev, info.index);
if (!info.size) {
info.flags = 0;
break;
}
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
if (vdev->bar_mmap_supported[info.index]) {
info.flags |= VFIO_REGION_INFO_FLAG_MMAP;
if (info.index == vdev->msix_bar) {
ret = msix_sparse_mmap_cap(vdev, &caps);
if (ret)
return ret;
}
}
break;
case VFIO_PCI_ROM_REGION_INDEX:
{
void __iomem *io;
size_t size;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.flags = 0;
/* Report the BAR size, not the ROM size */
info.size = pci_resource_len(pdev, info.index);
if (!info.size) {
/* Shadow ROMs appear as PCI option ROMs */
if (pdev->resource[PCI_ROM_RESOURCE].flags &
IORESOURCE_ROM_SHADOW)
info.size = 0x20000;
else
break;
}
/* Is it really there? */
io = pci_map_rom(pdev, &size);
if (!io || !size) {
info.size = 0;
break;
}
pci_unmap_rom(pdev, io);
info.flags = VFIO_REGION_INFO_FLAG_READ;
break;
}
case VFIO_PCI_VGA_REGION_INDEX:
if (!vdev->has_vga)
return -EINVAL;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = 0xc0000;
info.flags = VFIO_REGION_INFO_FLAG_READ |
VFIO_REGION_INFO_FLAG_WRITE;
break;
default:
if (info.index >=
VFIO_PCI_NUM_REGIONS + vdev->num_regions)
return -EINVAL;
i = info.index - VFIO_PCI_NUM_REGIONS;
info.offset = VFIO_PCI_INDEX_TO_OFFSET(info.index);
info.size = vdev->region[i].size;
info.flags = vdev->region[i].flags;
ret = region_type_cap(vdev, &caps,
vdev->region[i].type,
vdev->region[i].subtype);
if (ret)
return ret;
}
if (caps.size) {
info.flags |= VFIO_REGION_INFO_FLAG_CAPS;
if (info.argsz < sizeof(info) + caps.size) {
info.argsz = sizeof(info) + caps.size;
info.cap_offset = 0;
} else {
vfio_info_cap_shift(&caps, sizeof(info));
if (copy_to_user((void __user *)arg +
sizeof(info), caps.buf,
caps.size)) {
kfree(caps.buf);
return -EFAULT;
}
info.cap_offset = sizeof(info);
}
kfree(caps.buf);
}
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) {
struct vfio_irq_info info;
minsz = offsetofend(struct vfio_irq_info, count);
if (copy_from_user(&info, (void __user *)arg, minsz))
return -EFAULT;
if (info.argsz < minsz || info.index >= VFIO_PCI_NUM_IRQS)
return -EINVAL;
switch (info.index) {
case VFIO_PCI_INTX_IRQ_INDEX ... VFIO_PCI_MSIX_IRQ_INDEX:
case VFIO_PCI_REQ_IRQ_INDEX:
break;
case VFIO_PCI_ERR_IRQ_INDEX:
if (pci_is_pcie(vdev->pdev))
break;
/* pass thru to return error */
default:
return -EINVAL;
}
info.flags = VFIO_IRQ_INFO_EVENTFD;
info.count = vfio_pci_get_irq_count(vdev, info.index);
if (info.index == VFIO_PCI_INTX_IRQ_INDEX)
info.flags |= (VFIO_IRQ_INFO_MASKABLE |
VFIO_IRQ_INFO_AUTOMASKED);
else
info.flags |= VFIO_IRQ_INFO_NORESIZE;
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_SET_IRQS) {
struct vfio_irq_set hdr;
u8 *data = NULL;
int ret = 0;
minsz = offsetofend(struct vfio_irq_set, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz || hdr.index >= VFIO_PCI_NUM_IRQS ||
hdr.flags & ~(VFIO_IRQ_SET_DATA_TYPE_MASK |
VFIO_IRQ_SET_ACTION_TYPE_MASK))
return -EINVAL;
if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
size_t size;
int max = vfio_pci_get_irq_count(vdev, hdr.index);
if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL)
size = sizeof(uint8_t);
else if (hdr.flags & VFIO_IRQ_SET_DATA_EVENTFD)
size = sizeof(int32_t);
else
return -EINVAL;
if (hdr.argsz - minsz < hdr.count * size ||
hdr.start >= max || hdr.start + hdr.count > max)
return -EINVAL;
data = memdup_user((void __user *)(arg + minsz),
hdr.count * size);
if (IS_ERR(data))
return PTR_ERR(data);
}
mutex_lock(&vdev->igate);
ret = vfio_pci_set_irqs_ioctl(vdev, hdr.flags, hdr.index,
hdr.start, hdr.count, data);
mutex_unlock(&vdev->igate);
kfree(data);
return ret;
} else if (cmd == VFIO_DEVICE_RESET) {
return vdev->reset_works ?
pci_try_reset_function(vdev->pdev) : -EINVAL;
} else if (cmd == VFIO_DEVICE_GET_PCI_HOT_RESET_INFO) {
struct vfio_pci_hot_reset_info hdr;
struct vfio_pci_fill_info fill = { 0 };
struct vfio_pci_dependent_device *devices = NULL;
bool slot = false;
int ret = 0;
minsz = offsetofend(struct vfio_pci_hot_reset_info, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz)
return -EINVAL;
hdr.flags = 0;
/* Can we do a slot or bus reset or neither? */
if (!pci_probe_reset_slot(vdev->pdev->slot))
slot = true;
else if (pci_probe_reset_bus(vdev->pdev->bus))
return -ENODEV;
/* How many devices are affected? */
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_count_devs,
&fill.max, slot);
if (ret)
return ret;
WARN_ON(!fill.max); /* Should always be at least one */
/*
* If there's enough space, fill it now, otherwise return
* -ENOSPC and the number of devices affected.
*/
if (hdr.argsz < sizeof(hdr) + (fill.max * sizeof(*devices))) {
ret = -ENOSPC;
hdr.count = fill.max;
goto reset_info_exit;
}
devices = kcalloc(fill.max, sizeof(*devices), GFP_KERNEL);
if (!devices)
return -ENOMEM;
fill.devices = devices;
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_fill_devs,
&fill, slot);
/*
* If a device was removed between counting and filling,
* we may come up short of fill.max. If a device was
* added, we'll have a return of -EAGAIN above.
*/
if (!ret)
hdr.count = fill.cur;
reset_info_exit:
if (copy_to_user((void __user *)arg, &hdr, minsz))
ret = -EFAULT;
if (!ret) {
if (copy_to_user((void __user *)(arg + minsz), devices,
hdr.count * sizeof(*devices)))
ret = -EFAULT;
}
kfree(devices);
return ret;
} else if (cmd == VFIO_DEVICE_PCI_HOT_RESET) {
struct vfio_pci_hot_reset hdr;
int32_t *group_fds;
struct vfio_pci_group_entry *groups;
struct vfio_pci_group_info info;
bool slot = false;
int i, count = 0, ret = 0;
minsz = offsetofend(struct vfio_pci_hot_reset, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz || hdr.flags)
return -EINVAL;
/* Can we do a slot or bus reset or neither? */
if (!pci_probe_reset_slot(vdev->pdev->slot))
slot = true;
else if (pci_probe_reset_bus(vdev->pdev->bus))
return -ENODEV;
/*
* We can't let userspace give us an arbitrarily large
* buffer to copy, so verify how many we think there
* could be. Note groups can have multiple devices so
* one group per device is the max.
*/
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_count_devs,
&count, slot);
if (ret)
return ret;
/* Somewhere between 1 and count is OK */
if (!hdr.count || hdr.count > count)
return -EINVAL;
group_fds = kcalloc(hdr.count, sizeof(*group_fds), GFP_KERNEL);
groups = kcalloc(hdr.count, sizeof(*groups), GFP_KERNEL);
if (!group_fds || !groups) {
kfree(group_fds);
kfree(groups);
return -ENOMEM;
}
if (copy_from_user(group_fds, (void __user *)(arg + minsz),
hdr.count * sizeof(*group_fds))) {
kfree(group_fds);
kfree(groups);
return -EFAULT;
}
/*
* For each group_fd, get the group through the vfio external
* user interface and store the group and iommu ID. This
* ensures the group is held across the reset.
*/
for (i = 0; i < hdr.count; i++) {
struct vfio_group *group;
struct fd f = fdget(group_fds[i]);
if (!f.file) {
ret = -EBADF;
break;
}
group = vfio_group_get_external_user(f.file);
fdput(f);
if (IS_ERR(group)) {
ret = PTR_ERR(group);
break;
}
groups[i].group = group;
groups[i].id = vfio_external_user_iommu_id(group);
}
kfree(group_fds);
/* release reference to groups on error */
if (ret)
goto hot_reset_release;
info.count = hdr.count;
info.groups = groups;
/*
* Test whether all the affected devices are contained
* by the set of groups provided by the user.
*/
ret = vfio_pci_for_each_slot_or_bus(vdev->pdev,
vfio_pci_validate_devs,
&info, slot);
if (!ret)
/* User has access, do the reset */
ret = slot ? pci_try_reset_slot(vdev->pdev->slot) :
pci_try_reset_bus(vdev->pdev->bus);
hot_reset_release:
for (i--; i >= 0; i--)
vfio_group_put_external_user(groups[i].group);
kfree(groups);
return ret;
}
return -ENOTTY;
} | 2013 | True | 1 |
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