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CVE-2013-6368 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/fda4e2e85589191b123d31cdc21fd33ee70f50fd', 'name': 'https://github.com/torvalds/linux/commit/fda4e2e85589191b123d31cdc21fd33ee70f50fd', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2013/12/12/12', 'name': '[oss-security] 20131212 Re: [vs-plain] kvm issues', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1032210', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1032210', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fda4e2e85589191b123d31cdc21fd33ee70f50fd', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fda4e2e85589191b123d31cdc21fd33ee70f50fd', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.securityfocus.com/bid/64291', 'name': '64291', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-updates/2014-02/msg00045.html', 'name': 'openSUSE-SU-2014:0247', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-0163.html', 'name': 'RHSA-2014:0163', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html', 'name': 'openSUSE-SU-2014:0204', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2113-1', 'name': 'USN-2113-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2117-1', 'name': 'USN-2117-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html', 'name': 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'RHSA-2013:1801', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.9.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.2.21:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.30:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.10.8:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.11:*:*:*:*:*:*:*', 'cpe_name': []}, 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'cpe:2.3:o:linux:linux_kernel:3.8.9:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.9:rc1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.9.1:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The KVM subsystem in the Linux kernel through 3.12.5 allows local users to gain privileges or cause a denial of service (system crash) via a VAPIC synchronization operation involving a page-end address.'}] | 2019-04-22T17:48Z | 2013-12-14T18:08Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Andy Honig | 2013-11-20 10:23:22-08:00 | KVM: x86: Convert vapic synchronization to _cached functions (CVE-2013-6368)
In kvm_lapic_sync_from_vapic and kvm_lapic_sync_to_vapic there is the
potential to corrupt kernel memory if userspace provides an address that
is at the end of a page. This patches concerts those functions to use
kvm_write_guest_cached and kvm_read_guest_cached. It also checks the
vapic_address specified by userspace during ioctl processing and returns
an error to userspace if the address is not a valid GPA.
This is generally not guest triggerable, because the required write is
done by firmware that runs before the guest. Also, it only affects AMD
processors and oldish Intel that do not have the FlexPriority feature
(unless you disable FlexPriority, of course; then newer processors are
also affected).
Fixes: b93463aa59d6 ('KVM: Accelerated apic support')
Reported-by: Andrew Honig <[email protected]>
Cc: [email protected]
Signed-off-by: Andrew Honig <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]> | fda4e2e85589191b123d31cdc21fd33ee70f50fd | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | vapic_exit | vapic_exit( struct kvm_vcpu * vcpu) | ['vcpu'] | static void vapic_exit(struct kvm_vcpu *vcpu)
{
struct kvm_lapic *apic = vcpu->arch.apic;
int idx;
if (!apic || !apic->vapic_addr)
return;
idx = srcu_read_lock(&vcpu->kvm->srcu);
kvm_release_page_dirty(apic->vapic_page);
mark_page_dirty(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT);
srcu_read_unlock(&vcpu->kvm->srcu, idx);
} | 80 | True | 1 |
|
CVE-2013-6376 | False | False | False | False | AV:A/AC:M/Au:S/C:N/I:N/A:C | ADJACENT_NETWORK | MEDIUM | SINGLE | NONE | NONE | COMPLETE | 5.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1033106', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1033106', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2013/12/12/12', 'name': '[oss-security] 20131212 Re: [vs-plain] kvm issues', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/17d68b763f09a9ce824ae23eb62c9efc57b69271', 'name': 'https://github.com/torvalds/linux/commit/17d68b763f09a9ce824ae23eb62c9efc57b69271', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=17d68b763f09a9ce824ae23eb62c9efc57b69271', 'name': 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'cpe:2.3:o:linux:linux_kernel:3.8.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.1.9:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The recalculate_apic_map function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service (host OS crash) via a crafted ICR write operation in x2apic mode.'}] | 2014-03-16T04:42Z | 2013-12-14T18:08Z | Numeric Errors | Weaknesses in this category are related to improper calculation or conversion of numbers. | https://cwe.mitre.org/data/definitions/189.html | 1 | Gleb Natapov | 2013-12-12 21:20:08+01:00 | KVM: x86: fix guest-initiated crash with x2apic (CVE-2013-6376)
A guest can cause a BUG_ON() leading to a host kernel crash.
When the guest writes to the ICR to request an IPI, while in x2apic
mode the following things happen, the destination is read from
ICR2, which is a register that the guest can control.
kvm_irq_delivery_to_apic_fast uses the high 16 bits of ICR2 as the
cluster id. A BUG_ON is triggered, which is a protection against
accessing map->logical_map with an out-of-bounds access and manages
to avoid that anything really unsafe occurs.
The logic in the code is correct from real HW point of view. The problem
is that KVM supports only one cluster with ID 0 in clustered mode, but
the code that has the bug does not take this into account.
Reported-by: Lars Bull <[email protected]>
Cc: [email protected]
Signed-off-by: Gleb Natapov <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]> | 17d68b763f09a9ce824ae23eb62c9efc57b69271 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | recalculate_apic_map | recalculate_apic_map( struct kvm * kvm) | ['kvm'] | static void recalculate_apic_map(struct kvm *kvm)
{
struct kvm_apic_map *new, *old = NULL;
struct kvm_vcpu *vcpu;
int i;
new = kzalloc(sizeof(struct kvm_apic_map), GFP_KERNEL);
mutex_lock(&kvm->arch.apic_map_lock);
if (!new)
goto out;
new->ldr_bits = 8;
/* flat mode is default */
new->cid_shift = 8;
new->cid_mask = 0;
new->lid_mask = 0xff;
kvm_for_each_vcpu(i, vcpu, kvm) {
struct kvm_lapic *apic = vcpu->arch.apic;
u16 cid, lid;
u32 ldr;
if (!kvm_apic_present(vcpu))
continue;
/*
* All APICs have to be configured in the same mode by an OS.
* We take advatage of this while building logical id loockup
* table. After reset APICs are in xapic/flat mode, so if we
* find apic with different setting we assume this is the mode
* OS wants all apics to be in; build lookup table accordingly.
*/
if (apic_x2apic_mode(apic)) {
new->ldr_bits = 32;
new->cid_shift = 16;
new->cid_mask = new->lid_mask = 0xffff;
} else if (kvm_apic_sw_enabled(apic) &&
!new->cid_mask /* flat mode */ &&
kvm_apic_get_reg(apic, APIC_DFR) == APIC_DFR_CLUSTER) {
new->cid_shift = 4;
new->cid_mask = 0xf;
new->lid_mask = 0xf;
}
new->phys_map[kvm_apic_id(apic)] = apic;
ldr = kvm_apic_get_reg(apic, APIC_LDR);
cid = apic_cluster_id(new, ldr);
lid = apic_logical_id(new, ldr);
if (lid)
new->logical_map[cid][ffs(lid) - 1] = apic;
}
out:
old = rcu_dereference_protected(kvm->arch.apic_map,
lockdep_is_held(&kvm->arch.apic_map_lock));
rcu_assign_pointer(kvm->arch.apic_map, new);
mutex_unlock(&kvm->arch.apic_map_lock);
if (old)
kfree_rcu(old, rcu);
kvm_vcpu_request_scan_ioapic(kvm);
} | 314 | True | 1 |
||
CVE-2015-4170 | 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:N/UI:R/S:U/C:N/I:N/A:H | LOCAL | HIGH | NONE | REQUIRED | UNCHANGED | NONE | NONE | HIGH | 4.7 | MEDIUM | 1.0 | 3.6 | nan | [{'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf872776fc84128bb779ce2b83a37c884c3203ae', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1218879', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1218879', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'VDB Entry']}, {'url': 'http://www.openwall.com/lists/oss-security/2015/05/26/1', 'name': '[oss-security] 20150526 CVE request: vulnerability in the kernel tty subsystem.', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae', 'name': 'https://github.com/torvalds/linux/commit/cf872776fc84128bb779ce2b83a37c884c3203ae', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz', 'name': 'https://www.kernel.org/pub/linux/kernel/next/patch-v3.13-rc4-next-20131218.xz', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://access.redhat.com/errata/RHSA-2016:1395', 'name': 'RHSA-2016:1395', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/74820', 'name': '74820', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.13.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:7.1_s390x:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.1_ppc64:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_eus:7.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:7.1_ppc64le:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.1:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the ldsem_cmpxchg function in drivers/tty/tty_ldsem.c in the Linux kernel before 3.13-rc4-next-20131218 allows local users to cause a denial of service (ldsem_down_read and ldsem_down_write deadlock) by establishing a new tty thread during shutdown of a previous tty thread.'}] | 2017-11-12T02:29Z | 2016-05-02T10:59Z | 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 | Peter Hurley | 2013-12-11 21:11:58-05:00 | tty: Fix hang at ldsem_down_read()
When a controlling tty is being hung up and the hang up is
waiting for a just-signalled tty reader or writer to exit, and a new tty
reader/writer tries to acquire an ldisc reference concurrently with the
ldisc reference release from the signalled reader/writer, the hangup
can hang. The new reader/writer is sleeping in ldsem_down_read() and the
hangup is sleeping in ldsem_down_write() [1].
The new reader/writer fails to wakeup the waiting hangup because the
wrong lock count value is checked (the old lock count rather than the new
lock count) to see if the lock is unowned.
Change helper function to return the new lock count if the cmpxchg was
successful; document this behavior.
[1] edited dmesg log from reporter
SysRq : Show Blocked State
task PC stack pid father
systemd D ffff88040c4f0000 0 1 0 0x00000000
ffff88040c49fbe0 0000000000000046 ffff88040c4a0000 ffff88040c49ffd8
00000000001d3980 00000000001d3980 ffff88040c4a0000 ffff88040593d840
ffff88040c49fb40 ffffffff810a4cc0 0000000000000006 0000000000000023
Call Trace:
[<ffffffff810a4cc0>] ? sched_clock_cpu+0x9f/0xe4
[<ffffffff810a4cc0>] ? sched_clock_cpu+0x9f/0xe4
[<ffffffff810a4cc0>] ? sched_clock_cpu+0x9f/0xe4
[<ffffffff810a4cc0>] ? sched_clock_cpu+0x9f/0xe4
[<ffffffff817a6649>] schedule+0x24/0x5e
[<ffffffff817a588b>] schedule_timeout+0x15b/0x1ec
[<ffffffff810a4cc0>] ? sched_clock_cpu+0x9f/0xe4
[<ffffffff817aa691>] ? _raw_spin_unlock_irq+0x24/0x26
[<ffffffff817aa10c>] down_read_failed+0xe3/0x1b9
[<ffffffff817aa26d>] ldsem_down_read+0x8b/0xa5
[<ffffffff8142b5ca>] ? tty_ldisc_ref_wait+0x1b/0x44
[<ffffffff8142b5ca>] tty_ldisc_ref_wait+0x1b/0x44
[<ffffffff81423f5b>] tty_write+0x7d/0x28a
[<ffffffff814241f5>] redirected_tty_write+0x8d/0x98
[<ffffffff81424168>] ? tty_write+0x28a/0x28a
[<ffffffff8115d03f>] do_loop_readv_writev+0x56/0x79
[<ffffffff8115e604>] do_readv_writev+0x1b0/0x1ff
[<ffffffff8116ea0b>] ? do_vfs_ioctl+0x32a/0x489
[<ffffffff81167d9d>] ? final_putname+0x1d/0x3a
[<ffffffff8115e6c7>] vfs_writev+0x2e/0x49
[<ffffffff8115e7d3>] SyS_writev+0x47/0xaa
[<ffffffff817ab822>] system_call_fastpath+0x16/0x1b
bash D ffffffff81c104c0 0 5469 5302 0x00000082
ffff8800cf817ac0 0000000000000046 ffff8804086b22a0 ffff8800cf817fd8
00000000001d3980 00000000001d3980 ffff8804086b22a0 ffff8800cf817a48
000000000000b9a0 ffff8800cf817a78 ffffffff81004675 ffff8800cf817a44
Call Trace:
[<ffffffff81004675>] ? dump_trace+0x165/0x29c
[<ffffffff810a4cc0>] ? sched_clock_cpu+0x9f/0xe4
[<ffffffff8100edda>] ? save_stack_trace+0x26/0x41
[<ffffffff817a6649>] schedule+0x24/0x5e
[<ffffffff817a588b>] schedule_timeout+0x15b/0x1ec
[<ffffffff810a4cc0>] ? sched_clock_cpu+0x9f/0xe4
[<ffffffff817a9f03>] ? down_write_failed+0xa3/0x1c9
[<ffffffff817aa691>] ? _raw_spin_unlock_irq+0x24/0x26
[<ffffffff817a9f0b>] down_write_failed+0xab/0x1c9
[<ffffffff817aa300>] ldsem_down_write+0x79/0xb1
[<ffffffff817aada3>] ? tty_ldisc_lock_pair_timeout+0xa5/0xd9
[<ffffffff817aada3>] tty_ldisc_lock_pair_timeout+0xa5/0xd9
[<ffffffff8142bf33>] tty_ldisc_hangup+0xc4/0x218
[<ffffffff81423ab3>] __tty_hangup+0x2e2/0x3ed
[<ffffffff81424a76>] disassociate_ctty+0x63/0x226
[<ffffffff81078aa7>] do_exit+0x79f/0xa11
[<ffffffff81086bdb>] ? get_signal_to_deliver+0x206/0x62f
[<ffffffff810b4bfb>] ? lock_release_holdtime.part.8+0xf/0x16e
[<ffffffff81079b05>] do_group_exit+0x47/0xb5
[<ffffffff81086c16>] get_signal_to_deliver+0x241/0x62f
[<ffffffff810020a7>] do_signal+0x43/0x59d
[<ffffffff810f2af7>] ? __audit_syscall_exit+0x21a/0x2a8
[<ffffffff810b4bfb>] ? lock_release_holdtime.part.8+0xf/0x16e
[<ffffffff81002655>] do_notify_resume+0x54/0x6c
[<ffffffff817abaf8>] int_signal+0x12/0x17
Reported-by: Sami Farin <[email protected]>
Cc: <[email protected]> # 3.12.x
Signed-off-by: Peter Hurley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]> | cf872776fc84128bb779ce2b83a37c884c3203ae | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ldsem_cmpxchg | ldsem_cmpxchg( long * old , long new , struct ld_semaphore * sem) | ['old', 'new', 'sem'] | static inline int ldsem_cmpxchg(long *old, long new, struct ld_semaphore *sem)
{
long tmp = *old;
*old = atomic_long_cmpxchg(&sem->count, *old, new);
return *old == tmp;
} | 44 | True | 1 |
|
CVE-2014-8173 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ee53664bda169f519ce3c6a22d378f0b946c8178', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ee53664bda169f519ce3c6a22d378f0b946c8178', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ee53664bda169f519ce3c6a22d378f0b946c8178', 'name': 'https://github.com/torvalds/linux/commit/ee53664bda169f519ce3c6a22d378f0b946c8178', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1198457', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1198457', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html', 'name': 'openSUSE-SU-2015:0714', 'refsource': 'SUSE', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-Other'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:numa_systems:*', 'versionEndIncluding': '3.12.9', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux kernel before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory (PMD) entry is a transparent huge-table entry, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted MADV_WILLNEED madvise system call that leverages the absence of a page-table lock.'}] | 2017-01-03T02:59Z | 2015-03-16T10:59Z | 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 | Kirill A. Shutemov | 2013-12-20 15:10:03+02:00 | mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support
Sasha Levin found a NULL pointer dereference that is due to a missing
page table lock, which in turn is due to the pmd entry in question being
a transparent huge-table entry.
The code - introduced in commit 1998cc048901 ("mm: make
madvise(MADV_WILLNEED) support swap file prefetch") - correctly checks
for this situation using pmd_none_or_trans_huge_or_clear_bad(), but it
turns out that that function doesn't work correctly.
pmd_none_or_trans_huge_or_clear_bad() expected that pmd_bad() would
trigger if the transparent hugepage bit was set, but it doesn't do that
if pmd_numa() is also set. Note that the NUMA bit only gets set on real
NUMA machines, so people trying to reproduce this on most normal
development systems would never actually trigger this.
Fix it by removing the very subtle (and subtly incorrect) expectation,
and instead just checking pmd_trans_huge() explicitly.
Reported-by: Sasha Levin <[email protected]>
Acked-by: Andrea Arcangeli <[email protected]>
[ Additionally remove the now stale test for pmd_trans_huge() inside the
pmd_bad() case - Linus ]
Signed-off-by: Linus Torvalds <[email protected]> | ee53664bda169f519ce3c6a22d378f0b946c8178 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | pmd_none_or_trans_huge_or_clear_bad | pmd_none_or_trans_huge_or_clear_bad( pmd_t * pmd) | ['pmd'] | static inline int pmd_none_or_trans_huge_or_clear_bad(pmd_t *pmd)
{
pmd_t pmdval = pmd_read_atomic(pmd);
/*
* The barrier will stabilize the pmdval in a register or on
* the stack so that it will stop changing under the code.
*
* When CONFIG_TRANSPARENT_HUGEPAGE=y on x86 32bit PAE,
* pmd_read_atomic is allowed to return a not atomic pmdval
* (for example pointing to an hugepage that has never been
* mapped in the pmd). The below checks will only care about
* the low part of the pmd with 32bit PAE x86 anyway, with the
* exception of pmd_none(). So the important thing is that if
* the low part of the pmd is found null, the high part will
* be also null or the pmd_none() check below would be
* confused.
*/
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
barrier();
#endif
if (pmd_none(pmdval))
return 1;
if (unlikely(pmd_bad(pmdval))) {
if (!pmd_trans_huge(pmdval))
pmd_clear_bad(pmd);
return 1;
}
return 0;
} | 61 | True | 1 |
|
CVE-2013-7339 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c2349758acf1874e4c2b93fe41d072336f1a31d0', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c2349758acf1874e4c2b93fe41d072336f1a31d0', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/c2349758acf1874e4c2b93fe41d072336f1a31d0', 'name': 'https://github.com/torvalds/linux/commit/c2349758acf1874e4c2b93fe41d072336f1a31d0', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/03/20/14', 'name': '[oss-security] 20140320 CVE-2013-7339 Linux kernel - rds: prevent dereference of a NULL device', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1079214', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1079214', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/66351', 'name': '66351', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59386', 'name': '59386', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}] | [{'description': [{'lang': 'en', 'value': 'CWE-476'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.12.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The rds_ib_laddr_check function in net/rds/ib.c in the Linux kernel before 3.12.8 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a bind system call for an RDS socket on a system that lacks RDS transports.'}] | 2020-08-28T14:35Z | 2014-03-24T16:40Z | 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 | Sasha Levin | 2013-12-18 23:49:42-05:00 | rds: prevent dereference of a NULL device
Binding might result in a NULL device, which is dereferenced
causing this BUG:
[ 1317.260548] BUG: unable to handle kernel NULL pointer dereference at 000000000000097
4
[ 1317.261847] IP: [<ffffffff84225f52>] rds_ib_laddr_check+0x82/0x110
[ 1317.263315] PGD 418bcb067 PUD 3ceb21067 PMD 0
[ 1317.263502] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 1317.264179] Dumping ftrace buffer:
[ 1317.264774] (ftrace buffer empty)
[ 1317.265220] Modules linked in:
[ 1317.265824] CPU: 4 PID: 836 Comm: trinity-child46 Tainted: G W 3.13.0-rc4-
next-20131218-sasha-00013-g2cebb9b-dirty #4159
[ 1317.267415] task: ffff8803ddf33000 ti: ffff8803cd31a000 task.ti: ffff8803cd31a000
[ 1317.268399] RIP: 0010:[<ffffffff84225f52>] [<ffffffff84225f52>] rds_ib_laddr_check+
0x82/0x110
[ 1317.269670] RSP: 0000:ffff8803cd31bdf8 EFLAGS: 00010246
[ 1317.270230] RAX: 0000000000000000 RBX: ffff88020b0dd388 RCX: 0000000000000000
[ 1317.270230] RDX: ffffffff8439822e RSI: 00000000000c000a RDI: 0000000000000286
[ 1317.270230] RBP: ffff8803cd31be38 R08: 0000000000000000 R09: 0000000000000000
[ 1317.270230] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
[ 1317.270230] R13: 0000000054086700 R14: 0000000000a25de0 R15: 0000000000000031
[ 1317.270230] FS: 00007ff40251d700(0000) GS:ffff88022e200000(0000) knlGS:000000000000
0000
[ 1317.270230] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 1317.270230] CR2: 0000000000000974 CR3: 00000003cd478000 CR4: 00000000000006e0
[ 1317.270230] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1317.270230] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000090602
[ 1317.270230] Stack:
[ 1317.270230] 0000000054086700 5408670000a25de0 5408670000000002 0000000000000000
[ 1317.270230] ffffffff84223542 00000000ea54c767 0000000000000000 ffffffff86d26160
[ 1317.270230] ffff8803cd31be68 ffffffff84223556 ffff8803cd31beb8 ffff8800c6765280
[ 1317.270230] Call Trace:
[ 1317.270230] [<ffffffff84223542>] ? rds_trans_get_preferred+0x42/0xa0
[ 1317.270230] [<ffffffff84223556>] rds_trans_get_preferred+0x56/0xa0
[ 1317.270230] [<ffffffff8421c9c3>] rds_bind+0x73/0xf0
[ 1317.270230] [<ffffffff83e4ce62>] SYSC_bind+0x92/0xf0
[ 1317.270230] [<ffffffff812493f8>] ? context_tracking_user_exit+0xb8/0x1d0
[ 1317.270230] [<ffffffff8119313d>] ? trace_hardirqs_on+0xd/0x10
[ 1317.270230] [<ffffffff8107a852>] ? syscall_trace_enter+0x32/0x290
[ 1317.270230] [<ffffffff83e4cece>] SyS_bind+0xe/0x10
[ 1317.270230] [<ffffffff843a6ad0>] tracesys+0xdd/0xe2
[ 1317.270230] Code: 00 8b 45 cc 48 8d 75 d0 48 c7 45 d8 00 00 00 00 66 c7 45 d0 02 00
89 45 d4 48 89 df e8 78 49 76 ff 41 89 c4 85 c0 75 0c 48 8b 03 <80> b8 74 09 00 00 01 7
4 06 41 bc 9d ff ff ff f6 05 2a b6 c2 02
[ 1317.270230] RIP [<ffffffff84225f52>] rds_ib_laddr_check+0x82/0x110
[ 1317.270230] RSP <ffff8803cd31bdf8>
[ 1317.270230] CR2: 0000000000000974
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | c2349758acf1874e4c2b93fe41d072336f1a31d0 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | rds_ib_laddr_check | rds_ib_laddr_check( __be32 addr) | ['addr'] | static int rds_ib_laddr_check(__be32 addr)
{
int ret;
struct rdma_cm_id *cm_id;
struct sockaddr_in sin;
/* Create a CMA ID and try to bind it. This catches both
* IB and iWARP capable NICs.
*/
cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = addr;
/* rdma_bind_addr will only succeed for IB & iWARP devices */
ret = rdma_bind_addr(cm_id, (struct sockaddr *)&sin);
/* due to this, we will claim to support iWARP devices unless we
check node_type. */
if (ret || cm_id->device->node_type != RDMA_NODE_IB_CA)
ret = -EADDRNOTAVAIL;
rdsdebug("addr %pI4 ret %d node type %d\n",
&addr, ret,
cm_id->device ? cm_id->device->node_type : -1);
rdma_destroy_id(cm_id);
return ret;
} | 135 | True | 1 |
|
CVE-2014-1690 | False | False | False | False | AV:N/AC:H/Au:N/C:P/I:N/A:N | NETWORK | HIGH | NONE | PARTIAL | NONE | NONE | 2.6 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1058748', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1058748', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/2690d97ade05c5325cbf7c72b94b90d265659886', 'name': 'https://github.com/torvalds/linux/commit/2690d97ade05c5325cbf7c72b94b90d265659886', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/01/28/3', 'name': '[oss-security] 20140128 Re: CVE request Linux kernel: netfilter: nf_nat: leakage of uninitialized buffer in IRC NAT helper', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2690d97ade05c5325cbf7c72b94b90d265659886', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2690d97ade05c5325cbf7c72b94b90d265659886', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2137-1', 'name': 'USN-2137-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2140-1', 'name': 'USN-2140-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2158-1', 'name': 'USN-2158-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.12.8', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The help function in net/netfilter/nf_nat_irc.c in the Linux kernel before 3.12.8 allows remote attackers to obtain sensitive information from kernel memory by establishing an IRC DCC session in which incorrect packet data is transmitted during use of the NAT mangle feature.'}] | 2020-08-28T14:32Z | 2014-02-28T06:18Z | 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 | Daniel Borkmann | 2013-12-31 16:28:39+01:00 | netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
Commit 5901b6be885e attempted to introduce IPv6 support into
IRC NAT helper. By doing so, the following code seemed to be removed
by accident:
ip = ntohl(exp->master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip);
sprintf(buffer, "%u %u", ip, port);
pr_debug("nf_nat_irc: inserting '%s' == %pI4, port %u\n", buffer, &ip, port);
This leads to the fact that buffer[] was left uninitialized and
contained some stack value. When we call nf_nat_mangle_tcp_packet(),
we call strlen(buffer) on excatly this uninitialized buffer. If we
are unlucky and the skb has enough tailroom, we overwrite resp. leak
contents with values that sit on our stack into the packet and send
that out to the receiver.
Since the rather informal DCC spec [1] does not seem to specify
IPv6 support right now, we log such occurences so that admins can
act accordingly, and drop the packet. I've looked into XChat source,
and IPv6 is not supported there: addresses are in u32 and print
via %u format string.
Therefore, restore old behaviour as in IPv4, use snprintf(). The
IRC helper does not support IPv6 by now. By this, we can safely use
strlen(buffer) in nf_nat_mangle_tcp_packet() and prevent a buffer
overflow. Also simplify some code as we now have ct variable anyway.
[1] http://www.irchelp.org/irchelp/rfc/ctcpspec.html
Fixes: 5901b6be885e ("netfilter: nf_nat: support IPv6 in IRC NAT helper")
Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Harald Welte <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | 2690d97ade05c5325cbf7c72b94b90d265659886 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | help | help( struct sk_buff * skb , enum ip_conntrack_info ctinfo , unsigned int protoff , unsigned int matchoff , unsigned int matchlen , struct nf_conntrack_expect * exp) | ['skb', 'ctinfo', 'protoff', 'matchoff', 'matchlen', 'exp'] | static unsigned int help(struct sk_buff *skb,
enum ip_conntrack_info ctinfo,
unsigned int protoff,
unsigned int matchoff,
unsigned int matchlen,
struct nf_conntrack_expect *exp)
{
char buffer[sizeof("4294967296 65635")];
u_int16_t port;
unsigned int ret;
/* Reply comes from server. */
exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
exp->dir = IP_CT_DIR_REPLY;
exp->expectfn = nf_nat_follow_master;
/* Try to get same port: if not, try to change it. */
for (port = ntohs(exp->saved_proto.tcp.port); port != 0; port++) {
int ret;
exp->tuple.dst.u.tcp.port = htons(port);
ret = nf_ct_expect_related(exp);
if (ret == 0)
break;
else if (ret != -EBUSY) {
port = 0;
break;
}
}
if (port == 0) {
nf_ct_helper_log(skb, exp->master, "all ports in use");
return NF_DROP;
}
ret = nf_nat_mangle_tcp_packet(skb, exp->master, ctinfo,
protoff, matchoff, matchlen, buffer,
strlen(buffer));
if (ret != NF_ACCEPT) {
nf_ct_helper_log(skb, exp->master, "cannot mangle packet");
nf_ct_unexpect_related(exp);
}
return ret;
} | 228 | True | 1 |
|
CVE-2014-2523 | False | False | False | False | AV:N/AC:L/Au:N/C:C/I:C/A:C | NETWORK | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 10.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1077343', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1077343', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'name': 'https://github.com/torvalds/linux/commit/b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://twitter.com/grsecurity/statuses/445496197399461888', 'name': 'http://twitter.com/grsecurity/statuses/445496197399461888', 'refsource': 'MISC', 'tags': ['Broken Link']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/03/17/7', 'name': '[oss-security] 20140317 Re: CVE Request: netfilter: remote memory corruption in nf_conntrack_proto_dccp.c', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/57446', 'name': '57446', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/66279', 'name': '66279', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securitytracker.com/id/1029945', 'name': '1029945', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/91910', 'name': 'linux-kernel-cve20142523-code-exec(91910)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-2174-1', 'name': 'USN-2174-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2173-1', 'name': 'USN-2173-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.13.6', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'net/netfilter/nf_conntrack_proto_dccp.c in the Linux kernel through 3.13.6 uses a DCCP header pointer incorrectly, which allows remote attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a DCCP packet that triggers a call to the (1) dccp_new, (2) dccp_packet, or (3) dccp_error function.'}] | 2020-08-25T13:55Z | 2014-03-24T16:40Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Daniel Borkmann | 2014-01-06 00:57:54+01:00 | netfilter: nf_conntrack_dccp: fix skb_header_pointer API usages
Some occurences in the netfilter tree use skb_header_pointer() in
the following way ...
struct dccp_hdr _dh, *dh;
...
skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
... where dh itself is a pointer that is being passed as the copy
buffer. Instead, we need to use &_dh as the forth argument so that
we're copying the data into an actual buffer that sits on the stack.
Currently, we probably could overwrite memory on the stack (e.g.
with a possibly mal-formed DCCP packet), but unintentionally, as
we only want the buffer to be placed into _dh variable.
Fixes: 2bc780499aa3 ("[NETFILTER]: nf_conntrack: add DCCP protocol support")
Signed-off-by: Daniel Borkmann <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | b22f5126a24b3b2f15448c3f2a254fc10cbc2b92 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | dccp_error | dccp_error( struct net * net , struct nf_conn * tmpl , struct sk_buff * skb , unsigned int dataoff , enum ip_conntrack_info * ctinfo , u_int8_t pf , unsigned int hooknum) | ['net', 'tmpl', 'skb', 'dataoff', 'ctinfo', 'pf', 'hooknum'] | static int dccp_error(struct net *net, struct nf_conn *tmpl,
struct sk_buff *skb, unsigned int dataoff,
enum ip_conntrack_info *ctinfo,
u_int8_t pf, unsigned int hooknum)
{
struct dccp_hdr _dh, *dh;
unsigned int dccp_len = skb->len - dataoff;
unsigned int cscov;
const char *msg;
dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
if (dh == NULL) {
msg = "nf_ct_dccp: short packet ";
goto out_invalid;
}
if (dh->dccph_doff * 4 < sizeof(struct dccp_hdr) ||
dh->dccph_doff * 4 > dccp_len) {
msg = "nf_ct_dccp: truncated/malformed packet ";
goto out_invalid;
}
cscov = dccp_len;
if (dh->dccph_cscov) {
cscov = (dh->dccph_cscov - 1) * 4;
if (cscov > dccp_len) {
msg = "nf_ct_dccp: bad checksum coverage ";
goto out_invalid;
}
}
if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING &&
nf_checksum_partial(skb, hooknum, dataoff, cscov, IPPROTO_DCCP,
pf)) {
msg = "nf_ct_dccp: bad checksum ";
goto out_invalid;
}
if (dh->dccph_type >= DCCP_PKT_INVALID) {
msg = "nf_ct_dccp: reserved packet type ";
goto out_invalid;
}
return NF_ACCEPT;
out_invalid:
if (LOG_INVALID(net, IPPROTO_DCCP))
nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL, "%s", msg);
return -NF_ACCEPT;
} | 255 | True | 1 |
|
CVE-2014-2523 | False | False | False | False | AV:N/AC:L/Au:N/C:C/I:C/A:C | NETWORK | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 10.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1077343', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1077343', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'name': 'https://github.com/torvalds/linux/commit/b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://twitter.com/grsecurity/statuses/445496197399461888', 'name': 'http://twitter.com/grsecurity/statuses/445496197399461888', 'refsource': 'MISC', 'tags': ['Broken Link']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/03/17/7', 'name': '[oss-security] 20140317 Re: CVE Request: netfilter: remote memory corruption in nf_conntrack_proto_dccp.c', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/57446', 'name': '57446', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/66279', 'name': '66279', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securitytracker.com/id/1029945', 'name': '1029945', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/91910', 'name': 'linux-kernel-cve20142523-code-exec(91910)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-2174-1', 'name': 'USN-2174-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2173-1', 'name': 'USN-2173-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.13.6', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'net/netfilter/nf_conntrack_proto_dccp.c in the Linux kernel through 3.13.6 uses a DCCP header pointer incorrectly, which allows remote attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a DCCP packet that triggers a call to the (1) dccp_new, (2) dccp_packet, or (3) dccp_error function.'}] | 2020-08-25T13:55Z | 2014-03-24T16:40Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Daniel Borkmann | 2014-01-06 00:57:54+01:00 | netfilter: nf_conntrack_dccp: fix skb_header_pointer API usages
Some occurences in the netfilter tree use skb_header_pointer() in
the following way ...
struct dccp_hdr _dh, *dh;
...
skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
... where dh itself is a pointer that is being passed as the copy
buffer. Instead, we need to use &_dh as the forth argument so that
we're copying the data into an actual buffer that sits on the stack.
Currently, we probably could overwrite memory on the stack (e.g.
with a possibly mal-formed DCCP packet), but unintentionally, as
we only want the buffer to be placed into _dh variable.
Fixes: 2bc780499aa3 ("[NETFILTER]: nf_conntrack: add DCCP protocol support")
Signed-off-by: Daniel Borkmann <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | b22f5126a24b3b2f15448c3f2a254fc10cbc2b92 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | dccp_new | dccp_new( struct nf_conn * ct , const struct sk_buff * skb , unsigned int dataoff , unsigned int * timeouts) | ['ct', 'skb', 'dataoff', 'timeouts'] | static bool dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
unsigned int dataoff, unsigned int *timeouts)
{
struct net *net = nf_ct_net(ct);
struct dccp_net *dn;
struct dccp_hdr _dh, *dh;
const char *msg;
u_int8_t state;
dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
BUG_ON(dh == NULL);
state = dccp_state_table[CT_DCCP_ROLE_CLIENT][dh->dccph_type][CT_DCCP_NONE];
switch (state) {
default:
dn = dccp_pernet(net);
if (dn->dccp_loose == 0) {
msg = "nf_ct_dccp: not picking up existing connection ";
goto out_invalid;
}
case CT_DCCP_REQUEST:
break;
case CT_DCCP_INVALID:
msg = "nf_ct_dccp: invalid state transition ";
goto out_invalid;
}
ct->proto.dccp.role[IP_CT_DIR_ORIGINAL] = CT_DCCP_ROLE_CLIENT;
ct->proto.dccp.role[IP_CT_DIR_REPLY] = CT_DCCP_ROLE_SERVER;
ct->proto.dccp.state = CT_DCCP_NONE;
ct->proto.dccp.last_pkt = DCCP_PKT_REQUEST;
ct->proto.dccp.last_dir = IP_CT_DIR_ORIGINAL;
ct->proto.dccp.handshake_seq = 0;
return true;
out_invalid:
if (LOG_INVALID(net, IPPROTO_DCCP))
nf_log_packet(net, nf_ct_l3num(ct), 0, skb, NULL, NULL,
NULL, "%s", msg);
return false;
} | 247 | True | 1 |
|
CVE-2014-2523 | False | False | False | False | AV:N/AC:L/Au:N/C:C/I:C/A:C | NETWORK | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 10.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1077343', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1077343', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'name': 'https://github.com/torvalds/linux/commit/b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://twitter.com/grsecurity/statuses/445496197399461888', 'name': 'http://twitter.com/grsecurity/statuses/445496197399461888', 'refsource': 'MISC', 'tags': ['Broken Link']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/03/17/7', 'name': '[oss-security] 20140317 Re: CVE Request: netfilter: remote memory corruption in nf_conntrack_proto_dccp.c', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b22f5126a24b3b2f15448c3f2a254fc10cbc2b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/57446', 'name': '57446', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/66279', 'name': '66279', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securitytracker.com/id/1029945', 'name': '1029945', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/91910', 'name': 'linux-kernel-cve20142523-code-exec(91910)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-2174-1', 'name': 'USN-2174-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2173-1', 'name': 'USN-2173-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.13.6', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'net/netfilter/nf_conntrack_proto_dccp.c in the Linux kernel through 3.13.6 uses a DCCP header pointer incorrectly, which allows remote attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a DCCP packet that triggers a call to the (1) dccp_new, (2) dccp_packet, or (3) dccp_error function.'}] | 2020-08-25T13:55Z | 2014-03-24T16:40Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Daniel Borkmann | 2014-01-06 00:57:54+01:00 | netfilter: nf_conntrack_dccp: fix skb_header_pointer API usages
Some occurences in the netfilter tree use skb_header_pointer() in
the following way ...
struct dccp_hdr _dh, *dh;
...
skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
... where dh itself is a pointer that is being passed as the copy
buffer. Instead, we need to use &_dh as the forth argument so that
we're copying the data into an actual buffer that sits on the stack.
Currently, we probably could overwrite memory on the stack (e.g.
with a possibly mal-formed DCCP packet), but unintentionally, as
we only want the buffer to be placed into _dh variable.
Fixes: 2bc780499aa3 ("[NETFILTER]: nf_conntrack: add DCCP protocol support")
Signed-off-by: Daniel Borkmann <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]> | b22f5126a24b3b2f15448c3f2a254fc10cbc2b92 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | dccp_packet | dccp_packet( struct nf_conn * ct , const struct sk_buff * skb , unsigned int dataoff , enum ip_conntrack_info ctinfo , u_int8_t pf , unsigned int hooknum , unsigned int * timeouts) | ['ct', 'skb', 'dataoff', 'ctinfo', 'pf', 'hooknum', 'timeouts'] | static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
unsigned int dataoff, enum ip_conntrack_info ctinfo,
u_int8_t pf, unsigned int hooknum,
unsigned int *timeouts)
{
struct net *net = nf_ct_net(ct);
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
struct dccp_hdr _dh, *dh;
u_int8_t type, old_state, new_state;
enum ct_dccp_roles role;
dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
BUG_ON(dh == NULL);
type = dh->dccph_type;
if (type == DCCP_PKT_RESET &&
!test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
/* Tear down connection immediately if only reply is a RESET */
nf_ct_kill_acct(ct, ctinfo, skb);
return NF_ACCEPT;
}
spin_lock_bh(&ct->lock);
role = ct->proto.dccp.role[dir];
old_state = ct->proto.dccp.state;
new_state = dccp_state_table[role][type][old_state];
switch (new_state) {
case CT_DCCP_REQUEST:
if (old_state == CT_DCCP_TIMEWAIT &&
role == CT_DCCP_ROLE_SERVER) {
/* Reincarnation in the reverse direction: reopen and
* reverse client/server roles. */
ct->proto.dccp.role[dir] = CT_DCCP_ROLE_CLIENT;
ct->proto.dccp.role[!dir] = CT_DCCP_ROLE_SERVER;
}
break;
case CT_DCCP_RESPOND:
if (old_state == CT_DCCP_REQUEST)
ct->proto.dccp.handshake_seq = dccp_hdr_seq(dh);
break;
case CT_DCCP_PARTOPEN:
if (old_state == CT_DCCP_RESPOND &&
type == DCCP_PKT_ACK &&
dccp_ack_seq(dh) == ct->proto.dccp.handshake_seq)
set_bit(IPS_ASSURED_BIT, &ct->status);
break;
case CT_DCCP_IGNORE:
/*
* Connection tracking might be out of sync, so we ignore
* packets that might establish a new connection and resync
* if the server responds with a valid Response.
*/
if (ct->proto.dccp.last_dir == !dir &&
ct->proto.dccp.last_pkt == DCCP_PKT_REQUEST &&
type == DCCP_PKT_RESPONSE) {
ct->proto.dccp.role[!dir] = CT_DCCP_ROLE_CLIENT;
ct->proto.dccp.role[dir] = CT_DCCP_ROLE_SERVER;
ct->proto.dccp.handshake_seq = dccp_hdr_seq(dh);
new_state = CT_DCCP_RESPOND;
break;
}
ct->proto.dccp.last_dir = dir;
ct->proto.dccp.last_pkt = type;
spin_unlock_bh(&ct->lock);
if (LOG_INVALID(net, IPPROTO_DCCP))
nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL,
"nf_ct_dccp: invalid packet ignored ");
return NF_ACCEPT;
case CT_DCCP_INVALID:
spin_unlock_bh(&ct->lock);
if (LOG_INVALID(net, IPPROTO_DCCP))
nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL,
"nf_ct_dccp: invalid state transition ");
return -NF_ACCEPT;
}
ct->proto.dccp.last_dir = dir;
ct->proto.dccp.last_pkt = type;
ct->proto.dccp.state = new_state;
spin_unlock_bh(&ct->lock);
if (new_state != old_state)
nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
nf_ct_refresh_acct(ct, ctinfo, skb, timeouts[new_state]);
return NF_ACCEPT;
} | 537 | True | 1 |
|
CVE-2014-1438 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=26bef1318adc1b3a530ecc807ef99346db2aa8b0', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=26bef1318adc1b3a530ecc807ef99346db2aa8b0', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/', 'name': 'http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/', 'refsource': 'MISC', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2014/01/14/1', 'name': '[oss-security] 20140114 Re: Linux kernel: missing CPU-state sanitation during task-switch causes DOS / privilege escalation', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://lkml.org/lkml/2014/1/9/637', 'name': '[linux-kernel] 20140110 Re: Sanitize CPU-state when switching tasks (was sanitize CPU-state when switching from virtual-8086 mode to other task)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/26bef1318adc1b3a530ecc807ef99346db2aa8b0', 'name': 'https://github.com/torvalds/linux/commit/26bef1318adc1b3a530ecc807ef99346db2aa8b0', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1052914', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1052914', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/64781', 'name': '64781', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1029592', 'name': '1029592', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126874.html', 'name': 'FEDORA-2014-1062', 'refsource': 'FEDORA', 'tags': []}, {'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126858.html', 'name': 'FEDORA-2014-1072', 'refsource': 'FEDORA', 'tags': []}, {'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2014:038', 'name': 'MDVSA-2014:038', 'refsource': 'MANDRIVA', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2113-1', 'name': 'USN-2113-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2117-1', 'name': 'USN-2117-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2133-1', 'name': 'USN-2133-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2138-1', 'name': 'USN-2138-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2136-1', 'name': 'USN-2136-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2134-1', 'name': 'USN-2134-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2139-1', 'name': 'USN-2139-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2141-1', 'name': 'USN-2141-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2135-1', 'name': 'USN-2135-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12.6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.12.7', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The restore_fpu_checking function in arch/x86/include/asm/fpu-internal.h in the Linux kernel before 3.12.8 on the AMD K7 and K8 platforms does not clear pending exceptions before proceeding to an EMMS instruction, which allows local users to cause a denial of service (task kill) or possibly gain privileges via a crafted application.'}] | 2014-03-16T04:45Z | 2014-01-18T22:55Z | 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 | Linus Torvalds | 2014-01-11 19:15:52-08:00 | x86, fpu, amd: Clear exceptions in AMD FXSAVE workaround
Before we do an EMMS in the AMD FXSAVE information leak workaround we
need to clear any pending exceptions, otherwise we trap with a
floating-point exception inside this code.
Reported-by: halfdog <[email protected]>
Tested-by: Borislav Petkov <[email protected]>
Link: http://lkml.kernel.org/r/CA%2B55aFxQnY_PCG_n4=0w-VG=YLXL-yr7oMxyy0WU2gCBAf3ydg@mail.gmail.com
Signed-off-by: H. Peter Anvin <[email protected]> | 26bef1318adc1b3a530ecc807ef99346db2aa8b0 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | restore_fpu_checking | restore_fpu_checking( struct task_struct * tsk) | ['tsk'] | static inline int restore_fpu_checking(struct task_struct *tsk)
{
/* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
is pending. Clear the x87 state here by setting it to fixed
values. "m" is a random variable that should be in L1 */
alternative_input(
ASM_NOP8 ASM_NOP2,
"emms\n\t" /* clear stack tags */
"fildl %P[addr]", /* set F?P to defined value */
X86_FEATURE_FXSAVE_LEAK,
[addr] "m" (tsk->thread.fpu.has_fpu));
return fpu_restore_checking(&tsk->thread.fpu);
} | 45 | True | 1 |
||
CVE-2014-2038 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:N | LOCAL | LOW | NONE | PARTIAL | NONE | NONE | 2.1 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24', 'name': 'https://github.com/torvalds/linux/commit/263b4509ec4d47e0da3e753f85a39ea12d1eff24', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=263b4509ec4d47e0da3e753f85a39ea12d1eff24', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=263b4509ec4d47e0da3e753f85a39ea12d1eff24', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1066939', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1066939', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/02/20/16', 'name': '[oss-security] 20140221 Re: Re: CVE request: Linux kernel: nfs: information leakage', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2137-1', 'name': 'USN-2137-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2140-1', 'name': 'USN-2140-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.13.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The nfs_can_extend_write function in fs/nfs/write.c in the Linux kernel before 3.13.3 relies on a write delegation to extend a write operation without a certain up-to-date verification, which allows local users to obtain sensitive information from kernel memory in opportunistic circumstances by writing to a file in an NFS filesystem and then reading the same file.'}] | 2020-08-26T13:34Z | 2014-02-28T06:18Z | 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 | Scott Mayhew | 2014-01-17 15:12:05-05:00 | nfs: always make sure page is up-to-date before extending a write to cover the entire page
We should always make sure the cached page is up-to-date when we're
determining whether we can extend a write to cover the full page -- even
if we've received a write delegation from the server.
Commit c7559663 added logic to skip this check if we have a write
delegation, which can lead to data corruption such as the following
scenario if client B receives a write delegation from the NFS server:
Client A:
# echo 123456789 > /mnt/file
Client B:
# echo abcdefghi >> /mnt/file
# cat /mnt/file
0�D0�abcdefghi
Just because we hold a write delegation doesn't mean that we've read in
the entire page contents.
Cc: <[email protected]> # v3.11+
Signed-off-by: Scott Mayhew <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]> | 263b4509ec4d47e0da3e753f85a39ea12d1eff24 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | nfs_can_extend_write | nfs_can_extend_write( struct file * file , struct page * page , struct inode * inode) | ['file', 'page', 'inode'] | static int nfs_can_extend_write(struct file *file, struct page *page, struct inode *inode)
{
if (file->f_flags & O_DSYNC)
return 0;
if (NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE))
return 1;
if (nfs_write_pageuptodate(page, inode) && (inode->i_flock == NULL ||
(inode->i_flock->fl_start == 0 &&
inode->i_flock->fl_end == OFFSET_MAX &&
inode->i_flock->fl_type != F_RDLCK)))
return 1;
return 0;
} | 96 | True | 1 |
|
CVE-2014-4027 | False | False | False | False | AV:A/AC:M/Au:S/C:P/I:N/A:N | ADJACENT_NETWORK | MEDIUM | SINGLE | PARTIAL | NONE | NONE | 2.3 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc', 'name': 'https://github.com/torvalds/linux/commit/4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1108744', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1108744', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://permalink.gmane.org/gmane.linux.scsi.target.devel/6618', 'name': '[target-devel] 20140616 [PATCH] target: Explicitly clear ramdisk_mcp backend pages', 'refsource': 'MLIST', 'tags': ['Broken Link']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/11/1', 'name': '[oss-security] 20140611 Re: CVE request: Linux kernel / target information leak', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html', 'name': 'https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/61310', 'name': '61310', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59134', 'name': '59134', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_local_traffic_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_application_acceleration_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_access_policy_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-iq_application_delivery_controller:4.5.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_analytics:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_domain_name_system:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_application_security_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.3.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.4.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.3.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_link_controller:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.3.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_protocol_security_module:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.4.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_wan_optimization_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.3.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.3.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-iq_cloud:*:*:*:*:*:*:*:*', 'versionStartIncluding': '4.0.0', 'versionEndIncluding': '4.5.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-iq_device:*:*:*:*:*:*:*:*', 'versionStartIncluding': '4.2.0', 'versionEndIncluding': '4.5.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-iq_security:*:*:*:*:*:*:*:*', 'versionStartIncluding': '4.0.0', 'versionEndIncluding': '4.5.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:enterprise_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '3.0.0', 'versionEndIncluding': '3.1.1', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The rd_build_device_space function in drivers/target/target_core_rd.c in the Linux kernel before 3.14 does not properly initialize a certain data structure, which allows local users to obtain sensitive information from ramdisk_mcp memory by leveraging access to a SCSI initiator.'}] | 2020-08-21T18:24Z | 2014-06-23T11:21Z | 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 | Nicholas Bellinger | 2014-01-07 22:40:27+00:00 | target/rd: Refactor rd_build_device_space + rd_release_device_space
This patch refactors rd_build_device_space() + rd_release_device_space()
into rd_allocate_sgl_table() + rd_release_device_space() so that they
may be used seperatly for setup + release of protection information
scatterlists.
Also add explicit memset of pages within rd_allocate_sgl_table() based
upon passed 'init_payload' value.
v2 changes:
- Drop unused sg_table from rd_release_device_space (Wei)
Cc: Martin K. Petersen <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: Or Gerlitz <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]> | 4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | rd_build_device_space | rd_build_device_space( struct rd_dev * rd_dev) | ['rd_dev'] | static int rd_build_device_space(struct rd_dev *rd_dev)
{
u32 i = 0, j, page_offset = 0, sg_per_table, sg_tables, total_sg_needed;
u32 max_sg_per_table = (RD_MAX_ALLOCATION_SIZE /
sizeof(struct scatterlist));
struct rd_dev_sg_table *sg_table;
struct page *pg;
struct scatterlist *sg;
if (rd_dev->rd_page_count <= 0) {
pr_err("Illegal page count: %u for Ramdisk device\n",
rd_dev->rd_page_count);
return -EINVAL;
}
/* Don't need backing pages for NULLIO */
if (rd_dev->rd_flags & RDF_NULLIO)
return 0;
total_sg_needed = rd_dev->rd_page_count;
sg_tables = (total_sg_needed / max_sg_per_table) + 1;
sg_table = kzalloc(sg_tables * sizeof(struct rd_dev_sg_table), GFP_KERNEL);
if (!sg_table) {
pr_err("Unable to allocate memory for Ramdisk"
" scatterlist tables\n");
return -ENOMEM;
}
rd_dev->sg_table_array = sg_table;
rd_dev->sg_table_count = sg_tables;
while (total_sg_needed) {
sg_per_table = (total_sg_needed > max_sg_per_table) ?
max_sg_per_table : total_sg_needed;
sg = kzalloc(sg_per_table * sizeof(struct scatterlist),
GFP_KERNEL);
if (!sg) {
pr_err("Unable to allocate scatterlist array"
" for struct rd_dev\n");
return -ENOMEM;
}
sg_init_table(sg, sg_per_table);
sg_table[i].sg_table = sg;
sg_table[i].rd_sg_count = sg_per_table;
sg_table[i].page_start_offset = page_offset;
sg_table[i++].page_end_offset = (page_offset + sg_per_table)
- 1;
for (j = 0; j < sg_per_table; j++) {
pg = alloc_pages(GFP_KERNEL, 0);
if (!pg) {
pr_err("Unable to allocate scatterlist"
" pages for struct rd_dev_sg_table\n");
return -ENOMEM;
}
sg_assign_page(&sg[j], pg);
sg[j].length = PAGE_SIZE;
}
page_offset += sg_per_table;
total_sg_needed -= sg_per_table;
}
pr_debug("CORE_RD[%u] - Built Ramdisk Device ID: %u space of"
" %u pages in %u tables\n", rd_dev->rd_host->rd_host_id,
rd_dev->rd_dev_id, rd_dev->rd_page_count,
rd_dev->sg_table_count);
return 0;
} | 344 | True | 1 |
|
CVE-2014-4027 | False | False | False | False | AV:A/AC:M/Au:S/C:P/I:N/A:N | ADJACENT_NETWORK | MEDIUM | SINGLE | PARTIAL | NONE | NONE | 2.3 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc', 'name': 'https://github.com/torvalds/linux/commit/4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1108744', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1108744', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://permalink.gmane.org/gmane.linux.scsi.target.devel/6618', 'name': '[target-devel] 20140616 [PATCH] target: Explicitly clear ramdisk_mcp backend pages', 'refsource': 'MLIST', 'tags': ['Broken Link']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/11/1', 'name': '[oss-security] 20140611 Re: CVE request: Linux kernel / target information leak', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html', 'name': 'https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15685.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/61310', 'name': '61310', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59134', 'name': '59134', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_local_traffic_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_application_acceleration_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_access_policy_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-iq_application_delivery_controller:4.5.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_analytics:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_advanced_firewall_manager:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 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'cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.3.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_link_controller:12.0.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.3.0', 'versionEndIncluding': '11.6.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_protocol_security_module:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.4.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_wan_optimization_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.3.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*', 'versionStartIncluding': '11.1.0', 'versionEndIncluding': '11.3.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-iq_cloud:*:*:*:*:*:*:*:*', 'versionStartIncluding': '4.0.0', 'versionEndIncluding': '4.5.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-iq_device:*:*:*:*:*:*:*:*', 'versionStartIncluding': '4.2.0', 'versionEndIncluding': '4.5.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:big-iq_security:*:*:*:*:*:*:*:*', 'versionStartIncluding': '4.0.0', 'versionEndIncluding': '4.5.0', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:f5:enterprise_manager:*:*:*:*:*:*:*:*', 'versionStartIncluding': '3.0.0', 'versionEndIncluding': '3.1.1', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The rd_build_device_space function in drivers/target/target_core_rd.c in the Linux kernel before 3.14 does not properly initialize a certain data structure, which allows local users to obtain sensitive information from ramdisk_mcp memory by leveraging access to a SCSI initiator.'}] | 2020-08-21T18:24Z | 2014-06-23T11:21Z | 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 | Nicholas Bellinger | 2014-01-07 22:40:27+00:00 | target/rd: Refactor rd_build_device_space + rd_release_device_space
This patch refactors rd_build_device_space() + rd_release_device_space()
into rd_allocate_sgl_table() + rd_release_device_space() so that they
may be used seperatly for setup + release of protection information
scatterlists.
Also add explicit memset of pages within rd_allocate_sgl_table() based
upon passed 'init_payload' value.
v2 changes:
- Drop unused sg_table from rd_release_device_space (Wei)
Cc: Martin K. Petersen <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: Or Gerlitz <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]> | 4442dc8a92b8f9ad8ee9e7f8438f4c04c03a22dc | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | rd_release_device_space | rd_release_device_space( struct rd_dev * rd_dev) | ['rd_dev'] | static void rd_release_device_space(struct rd_dev *rd_dev)
{
u32 i, j, page_count = 0, sg_per_table;
struct rd_dev_sg_table *sg_table;
struct page *pg;
struct scatterlist *sg;
if (!rd_dev->sg_table_array || !rd_dev->sg_table_count)
return;
sg_table = rd_dev->sg_table_array;
for (i = 0; i < rd_dev->sg_table_count; i++) {
sg = sg_table[i].sg_table;
sg_per_table = sg_table[i].rd_sg_count;
for (j = 0; j < sg_per_table; j++) {
pg = sg_page(&sg[j]);
if (pg) {
__free_page(pg);
page_count++;
}
}
kfree(sg);
}
pr_debug("CORE_RD[%u] - Released device space for Ramdisk"
" Device ID: %u, pages %u in %u tables total bytes %lu\n",
rd_dev->rd_host->rd_host_id, rd_dev->rd_dev_id, page_count,
rd_dev->sg_table_count, (unsigned long)page_count * PAGE_SIZE);
kfree(sg_table);
rd_dev->sg_table_array = NULL;
rd_dev->sg_table_count = 0;
} | 182 | True | 1 |
|
CVE-2014-0038 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://pastebin.com/raw.php?i=DH3Lbg54', 'name': 'http://pastebin.com/raw.php?i=DH3Lbg54', 'refsource': 'MISC', 'tags': ['Exploit']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.2', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1060023', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1060023', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/2def2ef2ae5f3990aabdbe8a755911902707d268', 'name': 'https://github.com/torvalds/linux/commit/2def2ef2ae5f3990aabdbe8a755911902707d268', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2def2ef2ae5f3990aabdbe8a755911902707d268', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2def2ef2ae5f3990aabdbe8a755911902707d268', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/01/31/2', 'name': '[oss-security] 20140131 Linux 3.4+: arbitrary write with CONFIG_X86_X32 (CVE-2014-0038)', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/saelo/cve-2014-0038', 'name': 'https://github.com/saelo/cve-2014-0038', 'refsource': 'MISC', 'tags': ['Vendor Advisory']}, {'url': 'https://code.google.com/p/chromium/issues/detail?id=338594', 'name': 'https://code.google.com/p/chromium/issues/detail?id=338594', 'refsource': 'MISC', 'tags': []}, {'url': 'http://www.exploit-db.com/exploits/31347', 'name': '31347', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2014:038', 'name': 'MDVSA-2014:038', 'refsource': 'MANDRIVA', 'tags': []}, {'url': 'http://www.exploit-db.com/exploits/31346', 'name': '31346', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2094-1', 'name': 'USN-2094-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2096-1', 'name': 'USN-2096-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2095-1', 'name': 'USN-2095-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html', 'name': 'openSUSE-SU-2014:0205', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html', 'name': 'openSUSE-SU-2014:0204', 'refsource': 'SUSE', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/40503/', 'name': '40503', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/65255', 'name': '65255', 'refsource': 'BID', 'tags': []}, {'url': 'http://secunia.com/advisories/56669', 'name': '56669', 'refsource': 'SECUNIA', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.9.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.2.21:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.30:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 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{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.11.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.10.21:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.11.6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.11.7:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.12.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.43:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.50:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.2.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.41:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.1.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.2.12:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.2.28:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.17:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.32:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.6.8:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.10.14:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.9.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.21:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.10.25:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.11.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.1:rc3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.4.7:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The compat_sys_recvmmsg function in net/compat.c in the Linux kernel before 3.13.2, when CONFIG_X86_X32 is enabled, allows local users to gain privileges via a recvmmsg system call with a crafted timeout pointer parameter.'}] | 2018-01-03T02:29Z | 2014-02-06T22:55Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | PaX Team | 2014-01-30 16:59:25-08:00 | x86, x32: Correct invalid use of user timespec in the kernel
The x32 case for the recvmsg() timout handling is broken:
asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
unsigned int vlen, unsigned int flags,
struct compat_timespec __user *timeout)
{
int datagrams;
struct timespec ktspec;
if (flags & MSG_CMSG_COMPAT)
return -EINVAL;
if (COMPAT_USE_64BIT_TIME)
return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
flags | MSG_CMSG_COMPAT,
(struct timespec *) timeout);
...
The timeout pointer parameter is provided by userland (hence the __user
annotation) but for x32 syscalls it's simply cast to a kernel pointer
and is passed to __sys_recvmmsg which will eventually directly
dereference it for both reading and writing. Other callers to
__sys_recvmmsg properly copy from userland to the kernel first.
The bug was introduced by commit ee4fa23c4bfc ("compat: Use
COMPAT_USE_64BIT_TIME in net/compat.c") and should affect all kernels
since 3.4 (and perhaps vendor kernels if they backported x32 support
along with this code).
Note that CONFIG_X86_X32_ABI gets enabled at build time and only if
CONFIG_X86_X32 is enabled and ld can build x32 executables.
Other uses of COMPAT_USE_64BIT_TIME seem fine.
This addresses CVE-2014-0038.
Signed-off-by: PaX Team <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
Cc: <[email protected]> # v3.4+
Signed-off-by: Linus Torvalds <[email protected]> | 2def2ef2ae5f3990aabdbe8a755911902707d268 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | compat_sys_recvmmsg | compat_sys_recvmmsg( int fd , struct compat_mmsghdr __user * mmsg , unsigned int vlen , unsigned int flags , struct compat_timespec __user * timeout) | ['fd', 'mmsg', 'vlen', 'flags', 'timeout'] | asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
unsigned int vlen, unsigned int flags,
struct compat_timespec __user *timeout)
{
int datagrams;
struct timespec ktspec;
if (flags & MSG_CMSG_COMPAT)
return -EINVAL;
if (COMPAT_USE_64BIT_TIME)
return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
flags | MSG_CMSG_COMPAT,
(struct timespec *) timeout);
if (timeout == NULL)
return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
flags | MSG_CMSG_COMPAT, NULL);
if (get_compat_timespec(&ktspec, timeout))
return -EFAULT;
datagrams = __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen,
flags | MSG_CMSG_COMPAT, &ktspec);
if (datagrams > 0 && put_compat_timespec(&ktspec, timeout))
datagrams = -EFAULT;
return datagrams;
} | 163 | True | 1 |
|
CVE-2014-8709 | False | False | False | False | AV:N/AC:L/Au:N/C:P/I:N/A:N | NETWORK | LOW | NONE | PARTIAL | NONE | NONE | 5.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2014/11/09/1', 'name': '[oss-security] 20141109 Re: CVE Request: Linux kernel mac80211 plain text leak', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/338f977f4eb441e69bb9a46eaa0ac715c931a67f', 'name': 'https://github.com/torvalds/linux/commit/338f977f4eb441e69bb9a46eaa0ac715c931a67f', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=338f977f4eb441e69bb9a46eaa0ac715c931a67f', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=338f977f4eb441e69bb9a46eaa0ac715c931a67f', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://www.securityfocus.com/bid/70965', 'name': '70965', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html', 'name': 'SUSE-SU-2015:0652', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1272.html', 'name': 'RHSA-2015:1272', 'refsource': 'REDHAT', '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://exchange.xforce.ibmcloud.com/vulnerabilities/98922', 'name': 'linux-kernel-cve20148709-info-disclsoure(98922)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.13.4', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The ieee80211_fragment function in net/mac80211/tx.c in the Linux kernel before 3.13.5 does not properly maintain a certain tail pointer, which allows remote attackers to obtain sensitive cleartext information by reading packets.'}] | 2017-09-08T01:29Z | 2014-11-10T11:55Z | 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 | Johannes Berg | 2014-02-01 00:16:23+01:00 | mac80211: fix fragmentation code, particularly for encryption
The "new" fragmentation code (since my rewrite almost 5 years ago)
erroneously sets skb->len rather than using skb_trim() to adjust
the length of the first fragment after copying out all the others.
This leaves the skb tail pointer pointing to after where the data
originally ended, and thus causes the encryption MIC to be written
at that point, rather than where it belongs: immediately after the
data.
The impact of this is that if software encryption is done, then
a) encryption doesn't work for the first fragment, the connection
becomes unusable as the first fragment will never be properly
verified at the receiver, the MIC is practically guaranteed to
be wrong
b) we leak up to 8 bytes of plaintext (!) of the packet out into
the air
This is only mitigated by the fact that many devices are capable
of doing encryption in hardware, in which case this can't happen
as the tail pointer is irrelevant in that case. Additionally,
fragmentation is not used very frequently and would normally have
to be configured manually.
Fix this by using skb_trim() properly.
Cc: [email protected]
Fixes: 2de8e0d999b8 ("mac80211: rewrite fragmentation")
Reported-by: Jouni Malinen <[email protected]>
Signed-off-by: Johannes Berg <[email protected]> | 338f977f4eb441e69bb9a46eaa0ac715c931a67f | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ieee80211_fragment | ieee80211_fragment( struct ieee80211_tx_data * tx , struct sk_buff * skb , int hdrlen , int frag_threshold) | ['tx', 'skb', 'hdrlen', 'frag_threshold'] | static int ieee80211_fragment(struct ieee80211_tx_data *tx,
struct sk_buff *skb, int hdrlen,
int frag_threshold)
{
struct ieee80211_local *local = tx->local;
struct ieee80211_tx_info *info;
struct sk_buff *tmp;
int per_fragm = frag_threshold - hdrlen - FCS_LEN;
int pos = hdrlen + per_fragm;
int rem = skb->len - hdrlen - per_fragm;
if (WARN_ON(rem < 0))
return -EINVAL;
/* first fragment was already added to queue by caller */
while (rem) {
int fraglen = per_fragm;
if (fraglen > rem)
fraglen = rem;
rem -= fraglen;
tmp = dev_alloc_skb(local->tx_headroom +
frag_threshold +
tx->sdata->encrypt_headroom +
IEEE80211_ENCRYPT_TAILROOM);
if (!tmp)
return -ENOMEM;
__skb_queue_tail(&tx->skbs, tmp);
skb_reserve(tmp,
local->tx_headroom + tx->sdata->encrypt_headroom);
/* copy control information */
memcpy(tmp->cb, skb->cb, sizeof(tmp->cb));
info = IEEE80211_SKB_CB(tmp);
info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT |
IEEE80211_TX_CTL_FIRST_FRAGMENT);
if (rem)
info->flags |= IEEE80211_TX_CTL_MORE_FRAMES;
skb_copy_queue_mapping(tmp, skb);
tmp->priority = skb->priority;
tmp->dev = skb->dev;
/* copy header and data */
memcpy(skb_put(tmp, hdrlen), skb->data, hdrlen);
memcpy(skb_put(tmp, fraglen), skb->data + pos, fraglen);
pos += fraglen;
}
/* adjust first fragment's length */
skb->len = hdrlen + per_fragm;
return 0;
} | 274 | True | 1 |
|
CVE-2014-0069 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/5d81de8e8667da7135d3a32a964087c0faf5483f', 'name': 'https://github.com/torvalds/linux/commit/5d81de8e8667da7135d3a32a964087c0faf5483f', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5d81de8e8667da7135d3a32a964087c0faf5483f', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5d81de8e8667da7135d3a32a964087c0faf5483f', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/02/17/4', 'name': '[oss-security] 20140217 CVE-2014-0069 -- kernel: cifs: incorrect handling of bogus user pointers during uncached writes', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://article.gmane.org/gmane.linux.kernel.cifs/9401', 'name': '[linux-cifs] 20140214 [PATCH] cifs: ensure that uncached writes handle unmapped areas correctly', 'refsource': 'MLIST', 'tags': ['Broken Link']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1064253', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1064253', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-0328.html', 'name': 'RHSA-2014:0328', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/65588', 'name': '65588', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html', 'name': 'SUSE-SU-2014:0459', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.13.5', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_tus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The cifs_iovec_write function in fs/cifs/file.c in the Linux kernel through 3.13.5 does not properly handle uncached write operations that copy fewer than the requested number of bytes, which allows local users to obtain sensitive information from kernel memory, cause a denial of service (memory corruption and system crash), or possibly gain privileges via a writev system call with a crafted pointer.'}] | 2020-08-26T13:28Z | 2014-02-28T06:18Z | 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 | Jeff Layton | 2014-02-14 07:20:35-05:00 | cifs: ensure that uncached writes handle unmapped areas correctly
It's possible for userland to pass down an iovec via writev() that has a
bogus user pointer in it. If that happens and we're doing an uncached
write, then we can end up getting less bytes than we expect from the
call to iov_iter_copy_from_user. This is CVE-2014-0069
cifs_iovec_write isn't set up to handle that situation however. It'll
blindly keep chugging through the page array and not filling those pages
with anything useful. Worse yet, we'll later end up with a negative
number in wdata->tailsz, which will confuse the sending routines and
cause an oops at the very least.
Fix this by having the copy phase of cifs_iovec_write stop copying data
in this situation and send the last write as a short one. At the same
time, we want to avoid sending a zero-length write to the server, so
break out of the loop and set rc to -EFAULT if that happens. This also
allows us to handle the case where no address in the iovec is valid.
[Note: Marking this for stable on v3.4+ kernels, but kernels as old as
v2.6.38 may have a similar problem and may need similar fix]
Cc: <[email protected]> # v3.4+
Reviewed-by: Pavel Shilovsky <[email protected]>
Reported-by: Al Viro <[email protected]>
Signed-off-by: Jeff Layton <[email protected]>
Signed-off-by: Steve French <[email protected]> | 5d81de8e8667da7135d3a32a964087c0faf5483f | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | cifs_iovec_write | cifs_iovec_write( struct file * file , const struct iovec * iov , unsigned long nr_segs , loff_t * poffset) | ['file', 'iov', 'nr_segs', 'poffset'] | cifs_iovec_write(struct file *file, const struct iovec *iov,
unsigned long nr_segs, loff_t *poffset)
{
unsigned long nr_pages, i;
size_t copied, len, cur_len;
ssize_t total_written = 0;
loff_t offset;
struct iov_iter it;
struct cifsFileInfo *open_file;
struct cifs_tcon *tcon;
struct cifs_sb_info *cifs_sb;
struct cifs_writedata *wdata, *tmp;
struct list_head wdata_list;
int rc;
pid_t pid;
len = iov_length(iov, nr_segs);
if (!len)
return 0;
rc = generic_write_checks(file, poffset, &len, 0);
if (rc)
return rc;
INIT_LIST_HEAD(&wdata_list);
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
open_file = file->private_data;
tcon = tlink_tcon(open_file->tlink);
if (!tcon->ses->server->ops->async_writev)
return -ENOSYS;
offset = *poffset;
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
pid = open_file->pid;
else
pid = current->tgid;
iov_iter_init(&it, iov, nr_segs, len, 0);
do {
size_t save_len;
nr_pages = get_numpages(cifs_sb->wsize, len, &cur_len);
wdata = cifs_writedata_alloc(nr_pages,
cifs_uncached_writev_complete);
if (!wdata) {
rc = -ENOMEM;
break;
}
rc = cifs_write_allocate_pages(wdata->pages, nr_pages);
if (rc) {
kfree(wdata);
break;
}
save_len = cur_len;
for (i = 0; i < nr_pages; i++) {
copied = min_t(const size_t, cur_len, PAGE_SIZE);
copied = iov_iter_copy_from_user(wdata->pages[i], &it,
0, copied);
cur_len -= copied;
iov_iter_advance(&it, copied);
}
cur_len = save_len - cur_len;
wdata->sync_mode = WB_SYNC_ALL;
wdata->nr_pages = nr_pages;
wdata->offset = (__u64)offset;
wdata->cfile = cifsFileInfo_get(open_file);
wdata->pid = pid;
wdata->bytes = cur_len;
wdata->pagesz = PAGE_SIZE;
wdata->tailsz = cur_len - ((nr_pages - 1) * PAGE_SIZE);
rc = cifs_uncached_retry_writev(wdata);
if (rc) {
kref_put(&wdata->refcount,
cifs_uncached_writedata_release);
break;
}
list_add_tail(&wdata->list, &wdata_list);
offset += cur_len;
len -= cur_len;
} while (len > 0);
/*
* If at least one write was successfully sent, then discard any rc
* value from the later writes. If the other write succeeds, then
* we'll end up returning whatever was written. If it fails, then
* we'll get a new rc value from that.
*/
if (!list_empty(&wdata_list))
rc = 0;
/*
* Wait for and collect replies for any successful sends in order of
* increasing offset. Once an error is hit or we get a fatal signal
* while waiting, then return without waiting for any more replies.
*/
restart_loop:
list_for_each_entry_safe(wdata, tmp, &wdata_list, list) {
if (!rc) {
/* FIXME: freezable too? */
rc = wait_for_completion_killable(&wdata->done);
if (rc)
rc = -EINTR;
else if (wdata->result)
rc = wdata->result;
else
total_written += wdata->bytes;
/* resend call if it's a retryable error */
if (rc == -EAGAIN) {
rc = cifs_uncached_retry_writev(wdata);
goto restart_loop;
}
}
list_del_init(&wdata->list);
kref_put(&wdata->refcount, cifs_uncached_writedata_release);
}
if (total_written > 0)
*poffset += total_written;
cifs_stats_bytes_written(tcon, total_written);
return total_written ? total_written : (ssize_t)rc;
} | 599 | True | 1 |
|
CVE-2014-2672 | False | False | False | False | AV:N/AC:M/Au:N/C:N/I:N/A:C | NETWORK | MEDIUM | NONE | NONE | NONE | COMPLETE | 7.1 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/21f8aaee0c62708654988ce092838aa7df4d25d8', 'name': 'https://github.com/torvalds/linux/commit/21f8aaee0c62708654988ce092838aa7df4d25d8', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.7', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.7', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://bugzilla.kernel.org/show_bug.cgi?id=70551', 'name': 'https://bugzilla.kernel.org/show_bug.cgi?id=70551', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/03/30/5', 'name': '[oss-security] 20140330 Re: CVE request: Linux Kernel, two security issues', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=21f8aaee0c62708654988ce092838aa7df4d25d8', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=21f8aaee0c62708654988ce092838aa7df4d25d8', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.15', 'name': 'https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.15', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/66492', 'name': '66492', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/57468', 'name': '57468', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.13.7', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the ath_tx_aggr_sleep function in drivers/net/wireless/ath/ath9k/xmit.c in the Linux kernel before 3.13.7 allows remote attackers to cause a denial of service (system crash) via a large amount of network traffic that triggers certain list deletions.'}] | 2020-08-27T17:05Z | 2014-04-01T06:35Z | 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 | Stanislaw Gruszka | 2014-02-19 13:15:17+01:00 | ath9k: protect tid->sched check
We check tid->sched without a lock taken on ath_tx_aggr_sleep(). That
is race condition which can result of doing list_del(&tid->list) twice
(second time with poisoned list node) and cause crash like shown below:
[424271.637220] BUG: unable to handle kernel paging request at 00100104
[424271.637328] IP: [<f90fc072>] ath_tx_aggr_sleep+0x62/0xe0 [ath9k]
...
[424271.639953] Call Trace:
[424271.639998] [<f90f6900>] ? ath9k_get_survey+0x110/0x110 [ath9k]
[424271.640083] [<f90f6942>] ath9k_sta_notify+0x42/0x50 [ath9k]
[424271.640177] [<f809cfef>] sta_ps_start+0x8f/0x1c0 [mac80211]
[424271.640258] [<c10f730e>] ? free_compound_page+0x2e/0x40
[424271.640346] [<f809e915>] ieee80211_rx_handlers+0x9d5/0x2340 [mac80211]
[424271.640437] [<c112f048>] ? kmem_cache_free+0x1d8/0x1f0
[424271.640510] [<c1345a84>] ? kfree_skbmem+0x34/0x90
[424271.640578] [<c10fc23c>] ? put_page+0x2c/0x40
[424271.640640] [<c1345a84>] ? kfree_skbmem+0x34/0x90
[424271.640706] [<c1345a84>] ? kfree_skbmem+0x34/0x90
[424271.640787] [<f809dde3>] ? ieee80211_rx_handlers_result+0x73/0x1d0 [mac80211]
[424271.640897] [<f80a07a0>] ieee80211_prepare_and_rx_handle+0x520/0xad0 [mac80211]
[424271.641009] [<f809e22d>] ? ieee80211_rx_handlers+0x2ed/0x2340 [mac80211]
[424271.641104] [<c13846ce>] ? ip_output+0x7e/0xd0
[424271.641182] [<f80a1057>] ieee80211_rx+0x307/0x7c0 [mac80211]
[424271.641266] [<f90fa6ee>] ath_rx_tasklet+0x88e/0xf70 [ath9k]
[424271.641358] [<f80a0f2c>] ? ieee80211_rx+0x1dc/0x7c0 [mac80211]
[424271.641445] [<f90f82db>] ath9k_tasklet+0xcb/0x130 [ath9k]
Bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=70551
Reported-and-tested-by: Max Sydorenko <[email protected]>
Cc: [email protected]
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: John W. Linville <[email protected]> | 21f8aaee0c62708654988ce092838aa7df4d25d8 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ath_tx_aggr_sleep | ath_tx_aggr_sleep( struct ieee80211_sta * sta , struct ath_softc * sc , struct ath_node * an) | ['sta', 'sc', 'an'] | void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
struct ath_node *an)
{
struct ath_atx_tid *tid;
struct ath_atx_ac *ac;
struct ath_txq *txq;
bool buffered;
int tidno;
for (tidno = 0, tid = &an->tid[tidno];
tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
if (!tid->sched)
continue;
ac = tid->ac;
txq = ac->txq;
ath_txq_lock(sc, txq);
buffered = ath_tid_has_buffered(tid);
tid->sched = false;
list_del(&tid->list);
if (ac->sched) {
ac->sched = false;
list_del(&ac->list);
}
ath_txq_unlock(sc, txq);
ieee80211_sta_set_buffered(sta, tidno, buffered);
}
} | 155 | True | 1 |
|
CVE-2014-9903 | 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/4efbc454ba68def5ef285b26ebfcfdb605b52755', 'name': 'https://github.com/torvalds/linux/commit/4efbc454ba68def5ef285b26ebfcfdb605b52755', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4efbc454ba68def5ef285b26ebfcfdb605b52755', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4efbc454ba68def5ef285b26ebfcfdb605b52755', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/91511', 'name': '91511', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc2:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The sched_read_attr function in kernel/sched/core.c in the Linux kernel 3.14-rc before 3.14-rc4 uses an incorrect size, which allows local users to obtain sensitive information from kernel stack memory via a crafted sched_getattr system call.'}] | 2016-11-28T19:15Z | 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 | Vegard Nossum | 2014-02-16 22:24:17+01:00 | sched: Fix information leak in sys_sched_getattr()
We're copying the on-stack structure to userspace, but forgot to give
the right number of bytes to copy. This allows the calling process to
obtain up to PAGE_SIZE bytes from the stack (and possibly adjacent
kernel memory).
This fix copies only as much as we actually have on the stack
(attr->size defaults to the size of the struct) and leaves the rest of
the userspace-provided buffer untouched.
Found using kmemcheck + trinity.
Fixes: d50dde5a10f30 ("sched: Add new scheduler syscalls to support an extended scheduling parameters ABI")
Cc: Dario Faggioli <[email protected]>
Cc: Juri Lelli <[email protected]>
Cc: Ingo Molnar <[email protected]>
Signed-off-by: Vegard Nossum <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]> | 4efbc454ba68def5ef285b26ebfcfdb605b52755 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | sched_read_attr | sched_read_attr( struct sched_attr __user * uattr , struct sched_attr * attr , unsigned int usize) | ['uattr', 'attr', 'usize'] | static int sched_read_attr(struct sched_attr __user *uattr,
struct sched_attr *attr,
unsigned int usize)
{
int ret;
if (!access_ok(VERIFY_WRITE, uattr, usize))
return -EFAULT;
/*
* If we're handed a smaller struct than we know of,
* ensure all the unknown bits are 0 - i.e. old
* user-space does not get uncomplete information.
*/
if (usize < sizeof(*attr)) {
unsigned char *addr;
unsigned char *end;
addr = (void *)attr + usize;
end = (void *)attr + sizeof(*attr);
for (; addr < end; addr++) {
if (*addr)
goto err_size;
}
attr->size = usize;
}
ret = copy_to_user(uattr, attr, usize);
if (ret)
return -EFAULT;
out:
return ret;
err_size:
ret = -E2BIG;
goto out;
} | 144 | True | 1 |
|
CVE-2014-0049 | False | False | False | False | AV:A/AC:M/Au:S/C:C/I:C/A:C | ADJACENT_NETWORK | MEDIUM | SINGLE | COMPLETE | COMPLETE | COMPLETE | 7.4 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/a08d3b3b99efd509133946056531cdf8f3a0c09b', 'name': 'https://github.com/torvalds/linux/commit/a08d3b3b99efd509133946056531cdf8f3a0c09b', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/03/03/1', 'name': '[oss-security] 20140303 CVE-2014-0049 -- Linux kernel: kvm: mmio_fragments out-of-the-bounds access', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.6', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.6', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a08d3b3b99efd509133946056531cdf8f3a0c09b', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a08d3b3b99efd509133946056531cdf8f3a0c09b', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1062368', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1062368', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-120'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.13.6', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Buffer overflow in the complete_emulated_mmio function in arch/x86/kvm/x86.c in the Linux kernel before 3.13.6 allows guest OS users to execute arbitrary code on the host OS by leveraging a loop that triggers an invalid memory copy affecting certain cancel_work_item data.'}] | 2020-08-26T13:50Z | 2014-03-11T13:01Z | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. | A buffer overflow condition exists when a program attempts to put more data in a buffer than it can hold, or when a program attempts to put data in a memory area outside of the boundaries of a buffer. The simplest type of error, and the most common cause of buffer overflows, is the "classic" case in which the program copies the buffer without restricting how much is copied. Other variants exist, but the existence of a classic overflow strongly suggests that the programmer is not considering even the most basic of security protections.
| https://cwe.mitre.org/data/definitions/120.html | 0 | Andrew Honig | 2014-02-27 19:35:14+01:00 | kvm: x86: fix emulator buffer overflow (CVE-2014-0049)
The problem occurs when the guest performs a pusha with the stack
address pointing to an mmio address (or an invalid guest physical
address) to start with, but then extending into an ordinary guest
physical address. When doing repeated emulated pushes
emulator_read_write sets mmio_needed to 1 on the first one. On a
later push when the stack points to regular memory,
mmio_nr_fragments is set to 0, but mmio_is_needed is not set to 0.
As a result, KVM exits to userspace, and then returns to
complete_emulated_mmio. In complete_emulated_mmio
vcpu->mmio_cur_fragment is incremented. The termination condition of
vcpu->mmio_cur_fragment == vcpu->mmio_nr_fragments is never achieved.
The code bounces back and fourth to userspace incrementing
mmio_cur_fragment past it's buffer. If the guest does nothing else it
eventually leads to a a crash on a memcpy from invalid memory address.
However if a guest code can cause the vm to be destroyed in another
vcpu with excellent timing, then kvm_clear_async_pf_completion_queue
can be used by the guest to control the data that's pointed to by the
call to cancel_work_item, which can be used to gain execution.
Fixes: f78146b0f9230765c6315b2e14f56112513389ad
Signed-off-by: Andrew Honig <[email protected]>
Cc: [email protected] (3.5+)
Signed-off-by: Paolo Bonzini <[email protected]> | a08d3b3b99efd509133946056531cdf8f3a0c09b | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | complete_emulated_mmio | complete_emulated_mmio( struct kvm_vcpu * vcpu) | ['vcpu'] | static int complete_emulated_mmio(struct kvm_vcpu *vcpu)
{
struct kvm_run *run = vcpu->run;
struct kvm_mmio_fragment *frag;
unsigned len;
BUG_ON(!vcpu->mmio_needed);
/* Complete previous fragment */
frag = &vcpu->mmio_fragments[vcpu->mmio_cur_fragment];
len = min(8u, frag->len);
if (!vcpu->mmio_is_write)
memcpy(frag->data, run->mmio.data, len);
if (frag->len <= 8) {
/* Switch to the next fragment. */
frag++;
vcpu->mmio_cur_fragment++;
} else {
/* Go forward to the next mmio piece. */
frag->data += len;
frag->gpa += len;
frag->len -= len;
}
if (vcpu->mmio_cur_fragment == vcpu->mmio_nr_fragments) {
vcpu->mmio_needed = 0;
/* FIXME: return into emulator if single-stepping. */
if (vcpu->mmio_is_write)
return 1;
vcpu->mmio_read_completed = 1;
return complete_emulated_io(vcpu);
}
run->exit_reason = KVM_EXIT_MMIO;
run->mmio.phys_addr = frag->gpa;
if (vcpu->mmio_is_write)
memcpy(run->mmio.data, frag->data, min(8u, frag->len));
run->mmio.len = min(8u, frag->len);
run->mmio.is_write = vcpu->mmio_is_write;
vcpu->arch.complete_userspace_io = complete_emulated_mmio;
return 0;
} | 237 | True | 1 |
|
CVE-2014-2739 | False | False | False | False | AV:A/AC:H/Au:N/C:N/I:N/A:C | ADJACENT_NETWORK | HIGH | NONE | NONE | NONE | COMPLETE | 4.6 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/b2853fd6c2d0f383dbdf7427e263eb576a633867', 'name': 'https://github.com/torvalds/linux/commit/b2853fd6c2d0f383dbdf7427e263eb576a633867', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b2853fd6c2d0f383dbdf7427e263eb576a633867', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b2853fd6c2d0f383dbdf7427e263eb576a633867', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/04/10/9', 'name': '[oss-security] 20140410 Re: CVE request Linux kernel: IB/core: crash while resolving passive side RoCE L2 address in cma_req_handler', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1085415', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1085415', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/66716', 'name': '66716', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc7:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc8:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc2:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc6:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc5:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc4:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The cma_req_handler function in drivers/infiniband/core/cma.c in the Linux kernel 3.14.x through 3.14.1 attempts to resolve an RDMA over Converged Ethernet (aka RoCE) address that is properly resolved within a different module, which allows remote attackers to cause a denial of service (incorrect pointer dereference and system crash) via crafted network traffic.'}] | 2014-04-24T05:06Z | 2014-04-14T23:55Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Moni Shoua | 2014-03-27 10:52:58+02:00 | IB/core: Don't resolve passive side RoCE L2 address in CMA REQ handler
The code that resolves the passive side source MAC within the rdma_cm
connection request handler was both redundant and buggy, so remove it.
It was redundant since later, when an RC QP is modified to RTR state,
the resolution will take place in the ib_core module. It was buggy
because this callback also deals with UD SIDR exchange, for which we
incorrectly looked at the REQ member of the CM event and dereferenced
a random value.
Fixes: dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures")
Signed-off-by: Moni Shoua <[email protected]>
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: Roland Dreier <[email protected]> | b2853fd6c2d0f383dbdf7427e263eb576a633867 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ib_update_cm_av | ib_update_cm_av( struct ib_cm_id * id , const u8 * smac , const u8 * alt_smac) | ['id', 'smac', 'alt_smac'] | int ib_update_cm_av(struct ib_cm_id *id, const u8 *smac, const u8 *alt_smac)
{
struct cm_id_private *cm_id_priv;
cm_id_priv = container_of(id, struct cm_id_private, id);
if (smac != NULL)
memcpy(cm_id_priv->av.smac, smac, sizeof(cm_id_priv->av.smac));
if (alt_smac != NULL)
memcpy(cm_id_priv->alt_av.smac, alt_smac,
sizeof(cm_id_priv->alt_av.smac));
return 0;
} | 91 | True | 1 |
|
CVE-2014-2739 | False | False | False | False | AV:A/AC:H/Au:N/C:N/I:N/A:C | ADJACENT_NETWORK | HIGH | NONE | NONE | NONE | COMPLETE | 4.6 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/b2853fd6c2d0f383dbdf7427e263eb576a633867', 'name': 'https://github.com/torvalds/linux/commit/b2853fd6c2d0f383dbdf7427e263eb576a633867', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b2853fd6c2d0f383dbdf7427e263eb576a633867', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b2853fd6c2d0f383dbdf7427e263eb576a633867', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/04/10/9', 'name': '[oss-security] 20140410 Re: CVE request Linux kernel: IB/core: crash while resolving passive side RoCE L2 address in cma_req_handler', 'refsource': 'MLIST', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1085415', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1085415', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/66716', 'name': '66716', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc7:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc1:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc8:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc2:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc6:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc5:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14:rc4:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The cma_req_handler function in drivers/infiniband/core/cma.c in the Linux kernel 3.14.x through 3.14.1 attempts to resolve an RDMA over Converged Ethernet (aka RoCE) address that is properly resolved within a different module, which allows remote attackers to cause a denial of service (incorrect pointer dereference and system crash) via crafted network traffic.'}] | 2014-04-24T05:06Z | 2014-04-14T23:55Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Moni Shoua | 2014-03-27 10:52:58+02:00 | IB/core: Don't resolve passive side RoCE L2 address in CMA REQ handler
The code that resolves the passive side source MAC within the rdma_cm
connection request handler was both redundant and buggy, so remove it.
It was redundant since later, when an RC QP is modified to RTR state,
the resolution will take place in the ib_core module. It was buggy
because this callback also deals with UD SIDR exchange, for which we
incorrectly looked at the REQ member of the CM event and dereferenced
a random value.
Fixes: dd5f03beb4f7 ("IB/core: Ethernet L2 attributes in verbs/cm structures")
Signed-off-by: Moni Shoua <[email protected]>
Signed-off-by: Or Gerlitz <[email protected]>
Signed-off-by: Roland Dreier <[email protected]> | b2853fd6c2d0f383dbdf7427e263eb576a633867 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | cma_req_handler | cma_req_handler( struct ib_cm_id * cm_id , struct ib_cm_event * ib_event) | ['cm_id', 'ib_event'] | static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
{
struct rdma_id_private *listen_id, *conn_id;
struct rdma_cm_event event;
int offset, ret;
u8 smac[ETH_ALEN];
u8 alt_smac[ETH_ALEN];
u8 *psmac = smac;
u8 *palt_smac = alt_smac;
int is_iboe = ((rdma_node_get_transport(cm_id->device->node_type) ==
RDMA_TRANSPORT_IB) &&
(rdma_port_get_link_layer(cm_id->device,
ib_event->param.req_rcvd.port) ==
IB_LINK_LAYER_ETHERNET));
listen_id = cm_id->context;
if (!cma_check_req_qp_type(&listen_id->id, ib_event))
return -EINVAL;
if (cma_disable_callback(listen_id, RDMA_CM_LISTEN))
return -ECONNABORTED;
memset(&event, 0, sizeof event);
offset = cma_user_data_offset(listen_id);
event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
if (ib_event->event == IB_CM_SIDR_REQ_RECEIVED) {
conn_id = cma_new_udp_id(&listen_id->id, ib_event);
event.param.ud.private_data = ib_event->private_data + offset;
event.param.ud.private_data_len =
IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE - offset;
} else {
conn_id = cma_new_conn_id(&listen_id->id, ib_event);
cma_set_req_event_data(&event, &ib_event->param.req_rcvd,
ib_event->private_data, offset);
}
if (!conn_id) {
ret = -ENOMEM;
goto err1;
}
mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
ret = cma_acquire_dev(conn_id, listen_id);
if (ret)
goto err2;
conn_id->cm_id.ib = cm_id;
cm_id->context = conn_id;
cm_id->cm_handler = cma_ib_handler;
/*
* Protect against the user destroying conn_id from another thread
* until we're done accessing it.
*/
atomic_inc(&conn_id->refcount);
ret = conn_id->id.event_handler(&conn_id->id, &event);
if (ret)
goto err3;
if (is_iboe) {
if (ib_event->param.req_rcvd.primary_path != NULL)
rdma_addr_find_smac_by_sgid(
&ib_event->param.req_rcvd.primary_path->sgid,
psmac, NULL);
else
psmac = NULL;
if (ib_event->param.req_rcvd.alternate_path != NULL)
rdma_addr_find_smac_by_sgid(
&ib_event->param.req_rcvd.alternate_path->sgid,
palt_smac, NULL);
else
palt_smac = NULL;
}
/*
* Acquire mutex to prevent user executing rdma_destroy_id()
* while we're accessing the cm_id.
*/
mutex_lock(&lock);
if (is_iboe)
ib_update_cm_av(cm_id, psmac, palt_smac);
if (cma_comp(conn_id, RDMA_CM_CONNECT) &&
(conn_id->id.qp_type != IB_QPT_UD))
ib_send_cm_mra(cm_id, CMA_CM_MRA_SETTING, NULL, 0);
mutex_unlock(&lock);
mutex_unlock(&conn_id->handler_mutex);
mutex_unlock(&listen_id->handler_mutex);
cma_deref_id(conn_id);
return 0;
err3:
cma_deref_id(conn_id);
/* Destroy the CM ID by returning a non-zero value. */
conn_id->cm_id.ib = NULL;
err2:
cma_exch(conn_id, RDMA_CM_DESTROYING);
mutex_unlock(&conn_id->handler_mutex);
err1:
mutex_unlock(&listen_id->handler_mutex);
if (conn_id)
rdma_destroy_id(&conn_id->id);
return ret;
} | 539 | True | 1 |
|
CVE-2015-1805 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2015/06/06/2', 'name': '[oss-security] 20150606 CVE-2015-1805 Linux kernel: pipe: iovec overrun leading to memory corruption', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.debian.org/security/2015/dsa-3290', 'name': 'DSA-3290', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1199.html', 'name': 'RHSA-2015:1199', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1211.html', 'name': 'RHSA-2015:1211', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1190.html', 'name': 'RHSA-2015:1190', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-04-02.html', 'name': 'http://source.android.com/security/bulletin/2016-04-02.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-05-01.html', 'name': 'http://source.android.com/security/bulletin/2016-05-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/74951', 'name': '74951', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1042.html', 'name': 'RHSA-2015:1042', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1032454', 'name': '1032454', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1120.html', 'name': 'RHSA-2015:1120', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-1', 'name': 'USN-2967-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-2', 'name': 'USN-2967-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html', 'name': 'SUSE-SU-2015:1611', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html', 'name': 'SUSE-SU-2015:1592', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html', 'name': 'SUSE-SU-2015:1478', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2681-1', 'name': 'USN-2681-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2680-1', 'name': 'USN-2680-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2679-1', 'name': 'USN-2679-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html', 'name': 'SUSE-SU-2015:1491', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00010.html', 'name': 'SUSE-SU-2015:1490', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html', 'name': 'SUSE-SU-2015:1489', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html', 'name': 'SUSE-SU-2015:1488', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html', 'name': 'SUSE-SU-2015:1487', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html', 'name': 'SUSE-SU-2015:1324', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html', 'name': 'SUSE-SU-2015:1224', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1138.html', 'name': 'RHSA-2015:1138', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1137.html', 'name': 'RHSA-2015:1137', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1082.html', 'name': 'RHSA-2015:1082', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1081.html', 'name': 'RHSA-2015:1081', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-17'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:4.4.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.10', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun."'}] | 2018-01-05T02:30Z | 2015-08-08T10:59Z | DEPRECATED: Code | This entry has been deprecated. It was originally used for organizing the Development View (CWE-699) and some other views, but it introduced unnecessary complexity and depth to the resulting tree. | https://cwe.mitre.org/data/definitions/17.html | 1 | Al Viro | 2014-02-03 19:11:42-05:00 | switch pipe_read() to copy_page_to_iter()
Signed-off-by: Al Viro <[email protected]> | 637b58c2887e5e57850865839cc75f59184b23d1 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | iov_fault_in_pages_write | iov_fault_in_pages_write( struct iovec * iov , unsigned long len) | ['iov', 'len'] | static int iov_fault_in_pages_write(struct iovec *iov, unsigned long len)
{
while (!iov->iov_len)
iov++;
while (len > 0) {
unsigned long this_len;
this_len = min_t(unsigned long, len, iov->iov_len);
if (fault_in_pages_writeable(iov->iov_base, this_len))
break;
len -= this_len;
iov++;
}
return len;
} | 72 | True | 1 |
||
CVE-2015-1805 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2015/06/06/2', 'name': '[oss-security] 20150606 CVE-2015-1805 Linux kernel: pipe: iovec overrun leading to memory corruption', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.debian.org/security/2015/dsa-3290', 'name': 'DSA-3290', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1199.html', 'name': 'RHSA-2015:1199', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1211.html', 'name': 'RHSA-2015:1211', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1190.html', 'name': 'RHSA-2015:1190', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-04-02.html', 'name': 'http://source.android.com/security/bulletin/2016-04-02.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-05-01.html', 'name': 'http://source.android.com/security/bulletin/2016-05-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/74951', 'name': '74951', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1042.html', 'name': 'RHSA-2015:1042', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1032454', 'name': '1032454', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1120.html', 'name': 'RHSA-2015:1120', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-1', 'name': 'USN-2967-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-2', 'name': 'USN-2967-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html', 'name': 'SUSE-SU-2015:1611', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html', 'name': 'SUSE-SU-2015:1592', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html', 'name': 'SUSE-SU-2015:1478', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2681-1', 'name': 'USN-2681-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2680-1', 'name': 'USN-2680-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2679-1', 'name': 'USN-2679-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html', 'name': 'SUSE-SU-2015:1491', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00010.html', 'name': 'SUSE-SU-2015:1490', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html', 'name': 'SUSE-SU-2015:1489', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html', 'name': 'SUSE-SU-2015:1488', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html', 'name': 'SUSE-SU-2015:1487', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html', 'name': 'SUSE-SU-2015:1324', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html', 'name': 'SUSE-SU-2015:1224', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1138.html', 'name': 'RHSA-2015:1138', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1137.html', 'name': 'RHSA-2015:1137', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1082.html', 'name': 'RHSA-2015:1082', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1081.html', 'name': 'RHSA-2015:1081', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-17'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:4.4.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.10', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun."'}] | 2018-01-05T02:30Z | 2015-08-08T10:59Z | DEPRECATED: Code | This entry has been deprecated. It was originally used for organizing the Development View (CWE-699) and some other views, but it introduced unnecessary complexity and depth to the resulting tree. | https://cwe.mitre.org/data/definitions/17.html | 1 | Al Viro | 2014-02-03 19:11:42-05:00 | switch pipe_read() to copy_page_to_iter()
Signed-off-by: Al Viro <[email protected]> | 637b58c2887e5e57850865839cc75f59184b23d1 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | pipe_iov_copy_to_user | pipe_iov_copy_to_user( struct iovec * iov , const void * from , unsigned long len , int atomic) | ['iov', 'from', 'len', 'atomic'] | pipe_iov_copy_to_user(struct iovec *iov, const void *from, unsigned long len,
int atomic)
{
unsigned long copy;
while (len > 0) {
while (!iov->iov_len)
iov++;
copy = min_t(unsigned long, len, iov->iov_len);
if (atomic) {
if (__copy_to_user_inatomic(iov->iov_base, from, copy))
return -EFAULT;
} else {
if (copy_to_user(iov->iov_base, from, copy))
return -EFAULT;
}
from += copy;
len -= copy;
iov->iov_base += copy;
iov->iov_len -= copy;
}
return 0;
} | 123 | True | 1 |
||
CVE-2015-1805 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2015/06/06/2', 'name': '[oss-security] 20150606 CVE-2015-1805 Linux kernel: pipe: iovec overrun leading to memory corruption', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.debian.org/security/2015/dsa-3290', 'name': 'DSA-3290', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1199.html', 'name': 'RHSA-2015:1199', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1211.html', 'name': 'RHSA-2015:1211', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1190.html', 'name': 'RHSA-2015:1190', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-04-02.html', 'name': 'http://source.android.com/security/bulletin/2016-04-02.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-05-01.html', 'name': 'http://source.android.com/security/bulletin/2016-05-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/74951', 'name': '74951', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1042.html', 'name': 'RHSA-2015:1042', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1032454', 'name': '1032454', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1120.html', 'name': 'RHSA-2015:1120', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-1', 'name': 'USN-2967-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-2', 'name': 'USN-2967-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html', 'name': 'SUSE-SU-2015:1611', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html', 'name': 'SUSE-SU-2015:1592', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html', 'name': 'SUSE-SU-2015:1478', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2681-1', 'name': 'USN-2681-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2680-1', 'name': 'USN-2680-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2679-1', 'name': 'USN-2679-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html', 'name': 'SUSE-SU-2015:1491', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00010.html', 'name': 'SUSE-SU-2015:1490', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html', 'name': 'SUSE-SU-2015:1489', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html', 'name': 'SUSE-SU-2015:1488', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html', 'name': 'SUSE-SU-2015:1487', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html', 'name': 'SUSE-SU-2015:1324', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html', 'name': 'SUSE-SU-2015:1224', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1138.html', 'name': 'RHSA-2015:1138', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1137.html', 'name': 'RHSA-2015:1137', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1082.html', 'name': 'RHSA-2015:1082', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1081.html', 'name': 'RHSA-2015:1081', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-17'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:4.4.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.10', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun."'}] | 2018-01-05T02:30Z | 2015-08-08T10:59Z | DEPRECATED: Code | This entry has been deprecated. It was originally used for organizing the Development View (CWE-699) and some other views, but it introduced unnecessary complexity and depth to the resulting tree. | https://cwe.mitre.org/data/definitions/17.html | 1 | Al Viro | 2014-02-03 19:11:42-05:00 | switch pipe_read() to copy_page_to_iter()
Signed-off-by: Al Viro <[email protected]> | 637b58c2887e5e57850865839cc75f59184b23d1 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | pipe_read | pipe_read( struct kiocb * iocb , const struct iovec * _iov , unsigned long nr_segs , loff_t pos) | ['iocb', '_iov', 'nr_segs', 'pos'] | pipe_read(struct kiocb *iocb, const struct iovec *_iov,
unsigned long nr_segs, loff_t pos)
{
struct file *filp = iocb->ki_filp;
struct pipe_inode_info *pipe = filp->private_data;
int do_wakeup;
ssize_t ret;
struct iovec *iov = (struct iovec *)_iov;
size_t total_len;
total_len = iov_length(iov, nr_segs);
/* Null read succeeds. */
if (unlikely(total_len == 0))
return 0;
do_wakeup = 0;
ret = 0;
__pipe_lock(pipe);
for (;;) {
int bufs = pipe->nrbufs;
if (bufs) {
int curbuf = pipe->curbuf;
struct pipe_buffer *buf = pipe->bufs + curbuf;
const struct pipe_buf_operations *ops = buf->ops;
void *addr;
size_t chars = buf->len;
int error, atomic;
if (chars > total_len)
chars = total_len;
error = ops->confirm(pipe, buf);
if (error) {
if (!ret)
ret = error;
break;
}
atomic = !iov_fault_in_pages_write(iov, chars);
redo:
if (atomic)
addr = kmap_atomic(buf->page);
else
addr = kmap(buf->page);
error = pipe_iov_copy_to_user(iov, addr + buf->offset, chars, atomic);
if (atomic)
kunmap_atomic(addr);
else
kunmap(buf->page);
if (unlikely(error)) {
/*
* Just retry with the slow path if we failed.
*/
if (atomic) {
atomic = 0;
goto redo;
}
if (!ret)
ret = error;
break;
}
ret += chars;
buf->offset += chars;
buf->len -= chars;
/* Was it a packet buffer? Clean up and exit */
if (buf->flags & PIPE_BUF_FLAG_PACKET) {
total_len = chars;
buf->len = 0;
}
if (!buf->len) {
buf->ops = NULL;
ops->release(pipe, buf);
curbuf = (curbuf + 1) & (pipe->buffers - 1);
pipe->curbuf = curbuf;
pipe->nrbufs = --bufs;
do_wakeup = 1;
}
total_len -= chars;
if (!total_len)
break; /* common path: read succeeded */
}
if (bufs) /* More to do? */
continue;
if (!pipe->writers)
break;
if (!pipe->waiting_writers) {
/* syscall merging: Usually we must not sleep
* if O_NONBLOCK is set, or if we got some data.
* But if a writer sleeps in kernel space, then
* we can wait for that data without violating POSIX.
*/
if (ret)
break;
if (filp->f_flags & O_NONBLOCK) {
ret = -EAGAIN;
break;
}
}
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
break;
}
if (do_wakeup) {
wake_up_interruptible_sync_poll(&pipe->wait, POLLOUT | POLLWRNORM);
kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
}
pipe_wait(pipe);
}
__pipe_unlock(pipe);
/* Signal writers asynchronously that there is more room. */
if (do_wakeup) {
wake_up_interruptible_sync_poll(&pipe->wait, POLLOUT | POLLWRNORM);
kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
}
if (ret > 0)
file_accessed(filp);
return ret;
} | 555 | True | 1 |
||
CVE-2014-7283 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/10/01/29', 'name': '[oss-security] 20141002 xfs directory hash ordering bug', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c88547a8119e3b581318ab65e9b72f27f23e641d', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c88547a8119e3b581318ab65e9b72f27f23e641d', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Vendor Advisory']}, {'url': 'http://marc.info/?l=linux-xfs&m=139590613002926&w=2', 'name': '[xfs] 20140327 xfs errors while unlinking filenames with hash collisions', 'refsource': 'MLIST', 'tags': ['Exploit', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1148777', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1148777', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/c88547a8119e3b581318ab65e9b72f27f23e641d', 'name': 'https://github.com/torvalds/linux/commit/c88547a8119e3b581318ab65e9b72f27f23e641d', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/70261', 'name': '70261', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1943.html', 'name': 'RHSA-2014:1943', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:redhat:mrg_realtime:2.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The xfs_da3_fixhashpath function in fs/xfs/xfs_da_btree.c in the xfs implementation in the Linux kernel before 3.14.2 does not properly compare btree hash values, which allows local users to cause a denial of service (filesystem corruption, and OOPS or panic) via operations on directories that have hash collisions, as demonstrated by rmdir operations.'}] | 2020-08-06T15:11Z | 2014-10-13T10:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Mark Tinguely | 2014-04-04 07:10:49+11:00 | xfs: fix directory hash ordering bug
Commit f5ea1100 ("xfs: add CRCs to dir2/da node blocks") introduced
in 3.10 incorrectly converted the btree hash index array pointer in
xfs_da3_fixhashpath(). It resulted in the the current hash always
being compared against the first entry in the btree rather than the
current block index into the btree block's hash entry array. As a
result, it was comparing the wrong hashes, and so could misorder the
entries in the btree.
For most cases, this doesn't cause any problems as it requires hash
collisions to expose the ordering problem. However, when there are
hash collisions within a directory there is a very good probability
that the entries will be ordered incorrectly and that actually
matters when duplicate hashes are placed into or removed from the
btree block hash entry array.
This bug results in an on-disk directory corruption and that results
in directory verifier functions throwing corruption warnings into
the logs. While no data or directory entries are lost, access to
them may be compromised, and attempts to remove entries from a
directory that has suffered from this corruption may result in a
filesystem shutdown. xfs_repair will fix the directory hash
ordering without data loss occuring.
[dchinner: wrote useful a commit message]
cc: <[email protected]>
Reported-by: Hannes Frederic Sowa <[email protected]>
Signed-off-by: Mark Tinguely <[email protected]>
Reviewed-by: Ben Myers <[email protected]>
Signed-off-by: Dave Chinner <[email protected]> | c88547a8119e3b581318ab65e9b72f27f23e641d | 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_da3_fixhashpath | xfs_da3_fixhashpath( struct xfs_da_state * state , struct xfs_da_state_path * path) | ['state', 'path'] | xfs_da3_fixhashpath(
struct xfs_da_state *state,
struct xfs_da_state_path *path)
{
struct xfs_da_state_blk *blk;
struct xfs_da_intnode *node;
struct xfs_da_node_entry *btree;
xfs_dahash_t lasthash=0;
int level;
int count;
struct xfs_inode *dp = state->args->dp;
trace_xfs_da_fixhashpath(state->args);
level = path->active-1;
blk = &path->blk[ level ];
switch (blk->magic) {
case XFS_ATTR_LEAF_MAGIC:
lasthash = xfs_attr_leaf_lasthash(blk->bp, &count);
if (count == 0)
return;
break;
case XFS_DIR2_LEAFN_MAGIC:
lasthash = xfs_dir2_leafn_lasthash(dp, blk->bp, &count);
if (count == 0)
return;
break;
case XFS_DA_NODE_MAGIC:
lasthash = xfs_da3_node_lasthash(dp, blk->bp, &count);
if (count == 0)
return;
break;
}
for (blk--, level--; level >= 0; blk--, level--) {
struct xfs_da3_icnode_hdr nodehdr;
node = blk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
if (be32_to_cpu(btree->hashval) == lasthash)
break;
blk->hashval = lasthash;
btree[blk->index].hashval = cpu_to_be32(lasthash);
xfs_trans_log_buf(state->args->trans, blk->bp,
XFS_DA_LOGRANGE(node, &btree[blk->index],
sizeof(*btree)));
lasthash = be32_to_cpu(btree[nodehdr.count - 1].hashval);
}
} | 299 | True | 1 |
||
CVE-2014-3122 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.3', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/57e68e9cd65b4b8eb4045a1e0d0746458502554c', 'name': 'https://github.com/torvalds/linux/commit/57e68e9cd65b4b8eb4045a1e0d0746458502554c', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1093076', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1093076', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=57e68e9cd65b4b8eb4045a1e0d0746458502554c', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=57e68e9cd65b4b8eb4045a1e0d0746458502554c', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/05/01/7', 'name': '[oss-security] 20140430 Re: CVE request Linux kernel: mm: try_to_unmap_cluster() should lock_page() before mlocking', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2926', 'name': 'DSA-2926', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/67162', 'name': '67162', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59599', 'name': '59599', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/59386', 'name': '59386', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://www.ubuntu.com/usn/USN-2240-1', 'name': 'USN-2240-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-400'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The try_to_unmap_cluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service (system crash) by triggering a memory-usage pattern that requires removal of page-table mappings.'}] | 2020-08-21T18:29Z | 2014-05-11T21:55Z | 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 | Vlastimil Babka | 2014-04-07 15:37:50-07:00 | mm: try_to_unmap_cluster() should lock_page() before mlocking
A BUG_ON(!PageLocked) was triggered in mlock_vma_page() by Sasha Levin
fuzzing with trinity. The call site try_to_unmap_cluster() does not lock
the pages other than its check_page parameter (which is already locked).
The BUG_ON in mlock_vma_page() is not documented and its purpose is
somewhat unclear, but apparently it serializes against page migration,
which could otherwise fail to transfer the PG_mlocked flag. This would
not be fatal, as the page would be eventually encountered again, but
NR_MLOCK accounting would become distorted nevertheless. This patch adds
a comment to the BUG_ON in mlock_vma_page() and munlock_vma_page() to that
effect.
The call site try_to_unmap_cluster() is fixed so that for page !=
check_page, trylock_page() is attempted (to avoid possible deadlocks as we
already have check_page locked) and mlock_vma_page() is performed only
upon success. If the page lock cannot be obtained, the page is left
without PG_mlocked, which is again not a problem in the whole unevictable
memory design.
Signed-off-by: Vlastimil Babka <[email protected]>
Signed-off-by: Bob Liu <[email protected]>
Reported-by: Sasha Levin <[email protected]>
Cc: Wanpeng Li <[email protected]>
Cc: Michel Lespinasse <[email protected]>
Cc: KOSAKI Motohiro <[email protected]>
Acked-by: Rik van Riel <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 57e68e9cd65b4b8eb4045a1e0d0746458502554c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | try_to_unmap_cluster | try_to_unmap_cluster( unsigned long cursor , unsigned int * mapcount , struct vm_area_struct * vma , struct page * check_page) | ['cursor', 'mapcount', 'vma', 'check_page'] | static int try_to_unmap_cluster(unsigned long cursor, unsigned int *mapcount,
struct vm_area_struct *vma, struct page *check_page)
{
struct mm_struct *mm = vma->vm_mm;
pmd_t *pmd;
pte_t *pte;
pte_t pteval;
spinlock_t *ptl;
struct page *page;
unsigned long address;
unsigned long mmun_start; /* For mmu_notifiers */
unsigned long mmun_end; /* For mmu_notifiers */
unsigned long end;
int ret = SWAP_AGAIN;
int locked_vma = 0;
address = (vma->vm_start + cursor) & CLUSTER_MASK;
end = address + CLUSTER_SIZE;
if (address < vma->vm_start)
address = vma->vm_start;
if (end > vma->vm_end)
end = vma->vm_end;
pmd = mm_find_pmd(mm, address);
if (!pmd)
return ret;
mmun_start = address;
mmun_end = end;
mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
/*
* If we can acquire the mmap_sem for read, and vma is VM_LOCKED,
* keep the sem while scanning the cluster for mlocking pages.
*/
if (down_read_trylock(&vma->vm_mm->mmap_sem)) {
locked_vma = (vma->vm_flags & VM_LOCKED);
if (!locked_vma)
up_read(&vma->vm_mm->mmap_sem); /* don't need it */
}
pte = pte_offset_map_lock(mm, pmd, address, &ptl);
/* Update high watermark before we lower rss */
update_hiwater_rss(mm);
for (; address < end; pte++, address += PAGE_SIZE) {
if (!pte_present(*pte))
continue;
page = vm_normal_page(vma, address, *pte);
BUG_ON(!page || PageAnon(page));
if (locked_vma) {
mlock_vma_page(page); /* no-op if already mlocked */
if (page == check_page)
ret = SWAP_MLOCK;
continue; /* don't unmap */
}
if (ptep_clear_flush_young_notify(vma, address, pte))
continue;
/* Nuke the page table entry. */
flush_cache_page(vma, address, pte_pfn(*pte));
pteval = ptep_clear_flush(vma, address, pte);
/* If nonlinear, store the file page offset in the pte. */
if (page->index != linear_page_index(vma, address)) {
pte_t ptfile = pgoff_to_pte(page->index);
if (pte_soft_dirty(pteval))
pte_file_mksoft_dirty(ptfile);
set_pte_at(mm, address, pte, ptfile);
}
/* Move the dirty bit to the physical page now the pte is gone. */
if (pte_dirty(pteval))
set_page_dirty(page);
page_remove_rmap(page);
page_cache_release(page);
dec_mm_counter(mm, MM_FILEPAGES);
(*mapcount)--;
}
pte_unmap_unlock(pte - 1, ptl);
mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
if (locked_vma)
up_read(&vma->vm_mm->mmap_sem);
return ret;
} | 444 | True | 1 |
|
CVE-2014-3144 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/05/09/6', 'name': '[oss-security] 20140509 Re: CVE request Linux kernel: filter: prevent nla extensions to peek beyond the end of the message', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3', 'name': 'https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=05ab8f2647e4221cbdb3856dd7d32bd5407316b3', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=05ab8f2647e4221cbdb3856dd7d32bd5407316b3', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/58990', 'name': '58990', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://www.securityfocus.com/bid/67309', 'name': '67309', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59597', 'name': '59597', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/60613', 'name': '60613', 'refsource': 'SECUNIA', 'tags': ['Not Applicable']}, {'url': 'http://secunia.com/advisories/59311', 'name': '59311', 'refsource': 'SECUNIA', 'tags': ['Not Applicable']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3052.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3052.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2264-1', 'name': 'USN-2264-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2263-1', 'name': 'USN-2263-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2262-1', 'name': 'USN-2262-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2261-1', 'name': 'USN-2261-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2259-1', 'name': 'USN-2259-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2252-1', 'name': 'USN-2252-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2251-1', 'name': 'USN-2251-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2949', 'name': 'DSA-2949', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-190'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.'}] | 2020-08-19T19:20Z | 2014-05-11T21:55Z | 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 | Mathias Krause | 2014-04-13 18:23:33+02:00 | filter: prevent nla extensions to peek beyond the end of the message
The BPF_S_ANC_NLATTR and BPF_S_ANC_NLATTR_NEST extensions fail to check
for a minimal message length before testing the supplied offset to be
within the bounds of the message. This allows the subtraction of the nla
header to underflow and therefore -- as the data type is unsigned --
allowing far to big offset and length values for the search of the
netlink attribute.
The remainder calculation for the BPF_S_ANC_NLATTR_NEST extension is
also wrong. It has the minuend and subtrahend mixed up, therefore
calculates a huge length value, allowing to overrun the end of the
message while looking for the netlink attribute.
The following three BPF snippets will trigger the bugs when attached to
a UNIX datagram socket and parsing a message with length 1, 2 or 3.
,-[ PoC for missing size check in BPF_S_ANC_NLATTR ]--
| ld #0x87654321
| ldx #42
| ld #nla
| ret a
`---
,-[ PoC for the same bug in BPF_S_ANC_NLATTR_NEST ]--
| ld #0x87654321
| ldx #42
| ld #nlan
| ret a
`---
,-[ PoC for wrong remainder calculation in BPF_S_ANC_NLATTR_NEST ]--
| ; (needs a fake netlink header at offset 0)
| ld #0
| ldx #42
| ld #nlan
| ret a
`---
Fix the first issue by ensuring the message length fulfills the minimal
size constrains of a nla header. Fix the second bug by getting the math
for the remainder calculation right.
Fixes: 4738c1db15 ("[SKFILTER]: Add SKF_ADF_NLATTR instruction")
Fixes: d214c7537b ("filter: add SKF_AD_NLATTR_NEST to look for nested..")
Cc: Patrick McHardy <[email protected]>
Cc: Pablo Neira Ayuso <[email protected]>
Signed-off-by: Mathias Krause <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 05ab8f2647e4221cbdb3856dd7d32bd5407316b3 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __skb_get_nlattr_nest | __skb_get_nlattr_nest( u64 ctx , u64 A , u64 X , u64 r4 , u64 r5) | ['ctx', 'A', 'X', 'r4', 'r5'] | static u64 __skb_get_nlattr_nest(u64 ctx, u64 A, u64 X, u64 r4, u64 r5)
{
struct sk_buff *skb = (struct sk_buff *)(long) ctx;
struct nlattr *nla;
if (skb_is_nonlinear(skb))
return 0;
if (A > skb->len - sizeof(struct nlattr))
return 0;
nla = (struct nlattr *) &skb->data[A];
if (nla->nla_len > A - skb->len)
return 0;
nla = nla_find_nested(nla, X);
if (nla)
return (void *) nla - (void *) skb->data;
return 0;
} | 127 | True | 1 |
|
CVE-2014-3145 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3', 'name': 'https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=05ab8f2647e4221cbdb3856dd7d32bd5407316b3', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=05ab8f2647e4221cbdb3856dd7d32bd5407316b3', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/05/09/6', 'name': '[oss-security] 20140509 Re: CVE request Linux kernel: filter: prevent nla extensions to peek beyond the end of the message', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Patch', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/58990', 'name': '58990', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://www.securityfocus.com/bid/67321', 'name': '67321', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59597', 'name': '59597', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/60613', 'name': '60613', 'refsource': 'SECUNIA', 'tags': ['Not Applicable']}, {'url': 'http://secunia.com/advisories/59311', 'name': '59311', 'refsource': 'SECUNIA', 'tags': ['Not Applicable']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3052.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3052.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'https://source.android.com/security/bulletin/2017-04-01', 'name': 'https://source.android.com/security/bulletin/2017-04-01', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1038201', 'name': '1038201', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-2264-1', 'name': 'USN-2264-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2263-1', 'name': 'USN-2263-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2262-1', 'name': 'USN-2262-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2261-1', 'name': 'USN-2261-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2259-1', 'name': 'USN-2259-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2252-1', 'name': 'USN-2252-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2251-1', 'name': 'USN-2251-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2949', 'name': 'DSA-2949', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-125'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'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:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced.'}] | 2020-08-19T19:20Z | 2014-05-11T21:55Z | 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 | Mathias Krause | 2014-04-13 18:23:33+02:00 | filter: prevent nla extensions to peek beyond the end of the message
The BPF_S_ANC_NLATTR and BPF_S_ANC_NLATTR_NEST extensions fail to check
for a minimal message length before testing the supplied offset to be
within the bounds of the message. This allows the subtraction of the nla
header to underflow and therefore -- as the data type is unsigned --
allowing far to big offset and length values for the search of the
netlink attribute.
The remainder calculation for the BPF_S_ANC_NLATTR_NEST extension is
also wrong. It has the minuend and subtrahend mixed up, therefore
calculates a huge length value, allowing to overrun the end of the
message while looking for the netlink attribute.
The following three BPF snippets will trigger the bugs when attached to
a UNIX datagram socket and parsing a message with length 1, 2 or 3.
,-[ PoC for missing size check in BPF_S_ANC_NLATTR ]--
| ld #0x87654321
| ldx #42
| ld #nla
| ret a
`---
,-[ PoC for the same bug in BPF_S_ANC_NLATTR_NEST ]--
| ld #0x87654321
| ldx #42
| ld #nlan
| ret a
`---
,-[ PoC for wrong remainder calculation in BPF_S_ANC_NLATTR_NEST ]--
| ; (needs a fake netlink header at offset 0)
| ld #0
| ldx #42
| ld #nlan
| ret a
`---
Fix the first issue by ensuring the message length fulfills the minimal
size constrains of a nla header. Fix the second bug by getting the math
for the remainder calculation right.
Fixes: 4738c1db15 ("[SKFILTER]: Add SKF_ADF_NLATTR instruction")
Fixes: d214c7537b ("filter: add SKF_AD_NLATTR_NEST to look for nested..")
Cc: Patrick McHardy <[email protected]>
Cc: Pablo Neira Ayuso <[email protected]>
Signed-off-by: Mathias Krause <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 05ab8f2647e4221cbdb3856dd7d32bd5407316b3 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __skb_get_nlattr_nest | __skb_get_nlattr_nest( u64 ctx , u64 A , u64 X , u64 r4 , u64 r5) | ['ctx', 'A', 'X', 'r4', 'r5'] | static u64 __skb_get_nlattr_nest(u64 ctx, u64 A, u64 X, u64 r4, u64 r5)
{
struct sk_buff *skb = (struct sk_buff *)(long) ctx;
struct nlattr *nla;
if (skb_is_nonlinear(skb))
return 0;
if (A > skb->len - sizeof(struct nlattr))
return 0;
nla = (struct nlattr *) &skb->data[A];
if (nla->nla_len > A - skb->len)
return 0;
nla = nla_find_nested(nla, X);
if (nla)
return (void *) nla - (void *) skb->data;
return 0;
} | 127 | True | 1 |
|
CVE-2014-1737 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1094299', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1094299', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/05/09/2', 'name': '[oss-security] 20140509 Linux kernel floppy ioctl kernel code execution', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/ef87dbe7614341c2e7bfe8d32fcb7028cc97442c', 'name': 'https://github.com/torvalds/linux/commit/ef87dbe7614341c2e7bfe8d32fcb7028cc97442c', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ef87dbe7614341c2e7bfe8d32fcb7028cc97442c', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ef87dbe7614341c2e7bfe8d32fcb7028cc97442c', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2928', 'name': 'DSA-2928', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html', 'name': 'SUSE-SU-2014:0683', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html', 'name': 'SUSE-SU-2014:0667', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2926', 'name': 'DSA-2926', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/67300', 'name': '67300', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59406', 'name': '59406', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/59599', 'name': '59599', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-0771.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-0771.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3043.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3043.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59309', 'name': '59309', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/59262', 'name': '59262', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://www.securitytracker.com/id/1030474', 'name': '1030474', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-0801.html', 'name': 'RHSA-2014:0801', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-0800.html', 'name': 'RHSA-2014:0800', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-754'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:5:-:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:6.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:5.6:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The raw_cmd_copyin function in drivers/block/floppy.c in the Linux kernel through 3.14.3 does not properly handle error conditions during processing of an FDRAWCMD ioctl call, which allows local users to trigger kfree operations and gain privileges by leveraging write access to a /dev/fd device.'}] | 2020-08-21T18:30Z | 2014-05-11T21:55Z | Improper Check for Unusual or Exceptional Conditions | The software does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the software. |
The programmer may assume that certain events or conditions will never occur or do not need to be worried about, such as low memory conditions, lack of access to resources due to restrictive permissions, or misbehaving clients or components. However, attackers may intentionally trigger these unusual conditions, thus violating the programmer's assumptions, possibly introducing instability, incorrect behavior, or a vulnerability.
Note that this entry is not exclusively about the use of exceptions and exception handling, which are mechanisms for both checking and handling unusual or unexpected conditions.
| https://cwe.mitre.org/data/definitions/754.html | 0 | Matthew Daley | 2014-04-28 19:05:20+12:00 | floppy: ignore kernel-only members in FDRAWCMD ioctl input
Always clear out these floppy_raw_cmd struct members after copying the
entire structure from userspace so that the in-kernel version is always
valid and never left in an interdeterminate state.
Signed-off-by: Matthew Daley <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | ef87dbe7614341c2e7bfe8d32fcb7028cc97442c | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | raw_cmd_copyin | raw_cmd_copyin( int cmd , void __user * param , struct floppy_raw_cmd ** rcmd) | ['cmd', 'param', 'rcmd'] | static int raw_cmd_copyin(int cmd, void __user *param,
struct floppy_raw_cmd **rcmd)
{
struct floppy_raw_cmd *ptr;
int ret;
int i;
*rcmd = NULL;
loop:
ptr = kmalloc(sizeof(struct floppy_raw_cmd), GFP_USER);
if (!ptr)
return -ENOMEM;
*rcmd = ptr;
ret = copy_from_user(ptr, param, sizeof(*ptr));
if (ret)
return -EFAULT;
ptr->next = NULL;
ptr->buffer_length = 0;
param += sizeof(struct floppy_raw_cmd);
if (ptr->cmd_count > 33)
/* the command may now also take up the space
* initially intended for the reply & the
* reply count. Needed for long 82078 commands
* such as RESTORE, which takes ... 17 command
* bytes. Murphy's law #137: When you reserve
* 16 bytes for a structure, you'll one day
* discover that you really need 17...
*/
return -EINVAL;
for (i = 0; i < 16; i++)
ptr->reply[i] = 0;
ptr->resultcode = 0;
ptr->kernel_data = NULL;
if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) {
if (ptr->length <= 0)
return -EINVAL;
ptr->kernel_data = (char *)fd_dma_mem_alloc(ptr->length);
fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length);
if (!ptr->kernel_data)
return -ENOMEM;
ptr->buffer_length = ptr->length;
}
if (ptr->flags & FD_RAW_WRITE) {
ret = fd_copyin(ptr->data, ptr->kernel_data, ptr->length);
if (ret)
return ret;
}
if (ptr->flags & FD_RAW_MORE) {
rcmd = &(ptr->next);
ptr->rate &= 0x43;
goto loop;
}
return 0;
} | 288 | True | 1 |
|
CVE-2014-1738 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:N/A:N | LOCAL | LOW | NONE | PARTIAL | NONE | NONE | 2.1 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/2145e15e0557a01b9195d1c7199a1b92cb9be81f', 'name': 'https://github.com/torvalds/linux/commit/2145e15e0557a01b9195d1c7199a1b92cb9be81f', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/05/09/2', 'name': '[oss-security] 20140509 Linux kernel floppy ioctl kernel code execution', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2145e15e0557a01b9195d1c7199a1b92cb9be81f', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2145e15e0557a01b9195d1c7199a1b92cb9be81f', 'refsource': 'CONFIRM', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1094299', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1094299', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2928', 'name': 'DSA-2928', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html', 'name': 'SUSE-SU-2014:0683', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html', 'name': 'SUSE-SU-2014:0667', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2926', 'name': 'DSA-2926', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/67302', 'name': '67302', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59309', 'name': '59309', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/59406', 'name': '59406', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/59599', 'name': '59599', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-0771.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-0771.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3043.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3043.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59262', 'name': '59262', 'refsource': 'SECUNIA', 'tags': ['Broken Link']}, {'url': 'http://www.securitytracker.com/id/1030474', 'name': '1030474', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-0801.html', 'name': 'RHSA-2014:0801', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-0800.html', 'name': 'RHSA-2014:0800', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.3', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:6.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:5.6:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:5:-:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_high_availability_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The raw_cmd_copyout function in drivers/block/floppy.c in the Linux kernel through 3.14.3 does not properly restrict access to certain pointers during processing of an FDRAWCMD ioctl call, which allows local users to obtain sensitive information from kernel heap memory by leveraging write access to a /dev/fd device.'}] | 2020-08-21T18:29Z | 2014-05-11T21:55Z | 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 | Matthew Daley | 2014-04-28 19:05:21+12:00 | floppy: don't write kernel-only members to FDRAWCMD ioctl output
Do not leak kernel-only floppy_raw_cmd structure members to userspace.
This includes the linked-list pointer and the pointer to the allocated
DMA space.
Signed-off-by: Matthew Daley <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 2145e15e0557a01b9195d1c7199a1b92cb9be81f | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | raw_cmd_copyout | raw_cmd_copyout( int cmd , void __user * param , struct floppy_raw_cmd * ptr) | ['cmd', 'param', 'ptr'] | static int raw_cmd_copyout(int cmd, void __user *param,
struct floppy_raw_cmd *ptr)
{
int ret;
while (ptr) {
ret = copy_to_user(param, ptr, sizeof(*ptr));
if (ret)
return -EFAULT;
param += sizeof(struct floppy_raw_cmd);
if ((ptr->flags & FD_RAW_READ) && ptr->buffer_length) {
if (ptr->length >= 0 &&
ptr->length <= ptr->buffer_length) {
long length = ptr->buffer_length - ptr->length;
ret = fd_copyout(ptr->data, ptr->kernel_data,
length);
if (ret)
return ret;
}
}
ptr = ptr->next;
}
return 0;
} | 133 | True | 1 |
|
CVE-2015-0274 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1031853', 'name': '1031853', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2543-1', 'name': 'USN-2543-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2544-1', 'name': 'USN-2544-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.5', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote attribute replacement, which allows local users to cause a denial of service (transaction overrun and data corruption) or possibly gain privileges by leveraging XFS filesystem access.'}] | 2015-03-27T01:59Z | 2015-03-16T10:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Dave Chinner | 2014-05-06 07:37:31+10:00 | xfs: remote attribute overwrite causes transaction overrun
Commit e461fcb ("xfs: remote attribute lookups require the value
length") passes the remote attribute length in the xfs_da_args
structure on lookup so that CRC calculations and validity checking
can be performed correctly by related code. This, unfortunately has
the side effect of changing the args->valuelen parameter in cases
where it shouldn't.
That is, when we replace a remote attribute, the incoming
replacement stores the value and length in args->value and
args->valuelen, but then the lookup which finds the existing remote
attribute overwrites args->valuelen with the length of the remote
attribute being replaced. Hence when we go to create the new
attribute, we create it of the size of the existing remote
attribute, not the size it is supposed to be. When the new attribute
is much smaller than the old attribute, this results in a
transaction overrun and an ASSERT() failure on a debug kernel:
XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 331
Fix this by keeping the remote attribute value length separate to
the attribute value length in the xfs_da_args structure. The enables
us to pass the length of the remote attribute to be removed without
overwriting the new attribute's length.
Also, ensure that when we save remote block contexts for a later
rename we zero the original state variables so that we don't confuse
the state of the attribute to be removes with the state of the new
attribute that we just added. [Spotted by Brain Foster.]
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Brian Foster <[email protected]>
Signed-off-by: Dave Chinner <[email protected]> | 8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 | 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_attr_calc_size | xfs_attr_calc_size( struct xfs_inode * ip , int namelen , int valuelen , int * local) | ['ip', 'namelen', 'valuelen', 'local'] | xfs_attr_calc_size(
struct xfs_inode *ip,
int namelen,
int valuelen,
int *local)
{
struct xfs_mount *mp = ip->i_mount;
int size;
int nblks;
/*
* Determine space new attribute will use, and if it would be
* "local" or "remote" (note: local != inline).
*/
size = xfs_attr_leaf_newentsize(namelen, valuelen,
mp->m_sb.sb_blocksize, local);
nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
if (*local) {
if (size > (mp->m_sb.sb_blocksize >> 1)) {
/* Double split possible */
nblks *= 2;
}
} else {
/*
* Out of line attribute, cannot double split, but
* make room for the attribute value itself.
*/
uint dblocks = XFS_B_TO_FSB(mp, valuelen);
nblks += dblocks;
nblks += XFS_NEXTENTADD_SPACE_RES(mp, dblocks, XFS_ATTR_FORK);
}
return nblks;
} | 120 | True | 1 |
||
CVE-2015-0274 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1031853', 'name': '1031853', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2543-1', 'name': 'USN-2543-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2544-1', 'name': 'USN-2544-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.5', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote attribute replacement, which allows local users to cause a denial of service (transaction overrun and data corruption) or possibly gain privileges by leveraging XFS filesystem access.'}] | 2015-03-27T01:59Z | 2015-03-16T10:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Dave Chinner | 2014-05-06 07:37:31+10:00 | xfs: remote attribute overwrite causes transaction overrun
Commit e461fcb ("xfs: remote attribute lookups require the value
length") passes the remote attribute length in the xfs_da_args
structure on lookup so that CRC calculations and validity checking
can be performed correctly by related code. This, unfortunately has
the side effect of changing the args->valuelen parameter in cases
where it shouldn't.
That is, when we replace a remote attribute, the incoming
replacement stores the value and length in args->value and
args->valuelen, but then the lookup which finds the existing remote
attribute overwrites args->valuelen with the length of the remote
attribute being replaced. Hence when we go to create the new
attribute, we create it of the size of the existing remote
attribute, not the size it is supposed to be. When the new attribute
is much smaller than the old attribute, this results in a
transaction overrun and an ASSERT() failure on a debug kernel:
XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 331
Fix this by keeping the remote attribute value length separate to
the attribute value length in the xfs_da_args structure. The enables
us to pass the length of the remote attribute to be removed without
overwriting the new attribute's length.
Also, ensure that when we save remote block contexts for a later
rename we zero the original state variables so that we don't confuse
the state of the attribute to be removes with the state of the new
attribute that we just added. [Spotted by Brain Foster.]
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Brian Foster <[email protected]>
Signed-off-by: Dave Chinner <[email protected]> | 8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 | 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_attr3_leaf_clearflag | xfs_attr3_leaf_clearflag( struct xfs_da_args * args) | ['args'] | xfs_attr3_leaf_clearflag(
struct xfs_da_args *args)
{
struct xfs_attr_leafblock *leaf;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_name_remote *name_rmt;
struct xfs_buf *bp;
int error;
#ifdef DEBUG
struct xfs_attr3_icleaf_hdr ichdr;
xfs_attr_leaf_name_local_t *name_loc;
int namelen;
char *name;
#endif /* DEBUG */
trace_xfs_attr_leaf_clearflag(args);
/*
* Set up the operation.
*/
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno, -1, &bp);
if (error)
return(error);
leaf = bp->b_addr;
entry = &xfs_attr3_leaf_entryp(leaf)[args->index];
ASSERT(entry->flags & XFS_ATTR_INCOMPLETE);
#ifdef DEBUG
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
ASSERT(args->index < ichdr.count);
ASSERT(args->index >= 0);
if (entry->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr3_leaf_name_local(leaf, args->index);
namelen = name_loc->namelen;
name = (char *)name_loc->nameval;
} else {
name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
namelen = name_rmt->namelen;
name = (char *)name_rmt->name;
}
ASSERT(be32_to_cpu(entry->hashval) == args->hashval);
ASSERT(namelen == args->namelen);
ASSERT(memcmp(name, args->name, namelen) == 0);
#endif /* DEBUG */
entry->flags &= ~XFS_ATTR_INCOMPLETE;
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, entry, sizeof(*entry)));
if (args->rmtblkno) {
ASSERT((entry->flags & XFS_ATTR_LOCAL) == 0);
name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
name_rmt->valueblk = cpu_to_be32(args->rmtblkno);
name_rmt->valuelen = cpu_to_be32(args->valuelen);
xfs_trans_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, name_rmt, sizeof(*name_rmt)));
}
/*
* Commit the flag value change and start the next trans in series.
*/
return xfs_trans_roll(&args->trans, args->dp);
} | 363 | True | 1 |
||
CVE-2015-0274 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1031853', 'name': '1031853', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2543-1', 'name': 'USN-2543-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2544-1', 'name': 'USN-2544-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.5', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote attribute replacement, which allows local users to cause a denial of service (transaction overrun and data corruption) or possibly gain privileges by leveraging XFS filesystem access.'}] | 2015-03-27T01:59Z | 2015-03-16T10:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Dave Chinner | 2014-05-06 07:37:31+10:00 | xfs: remote attribute overwrite causes transaction overrun
Commit e461fcb ("xfs: remote attribute lookups require the value
length") passes the remote attribute length in the xfs_da_args
structure on lookup so that CRC calculations and validity checking
can be performed correctly by related code. This, unfortunately has
the side effect of changing the args->valuelen parameter in cases
where it shouldn't.
That is, when we replace a remote attribute, the incoming
replacement stores the value and length in args->value and
args->valuelen, but then the lookup which finds the existing remote
attribute overwrites args->valuelen with the length of the remote
attribute being replaced. Hence when we go to create the new
attribute, we create it of the size of the existing remote
attribute, not the size it is supposed to be. When the new attribute
is much smaller than the old attribute, this results in a
transaction overrun and an ASSERT() failure on a debug kernel:
XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 331
Fix this by keeping the remote attribute value length separate to
the attribute value length in the xfs_da_args structure. The enables
us to pass the length of the remote attribute to be removed without
overwriting the new attribute's length.
Also, ensure that when we save remote block contexts for a later
rename we zero the original state variables so that we don't confuse
the state of the attribute to be removes with the state of the new
attribute that we just added. [Spotted by Brain Foster.]
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Brian Foster <[email protected]>
Signed-off-by: Dave Chinner <[email protected]> | 8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 | 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_attr3_leaf_flipflags | xfs_attr3_leaf_flipflags( struct xfs_da_args * args) | ['args'] | xfs_attr3_leaf_flipflags(
struct xfs_da_args *args)
{
struct xfs_attr_leafblock *leaf1;
struct xfs_attr_leafblock *leaf2;
struct xfs_attr_leaf_entry *entry1;
struct xfs_attr_leaf_entry *entry2;
struct xfs_attr_leaf_name_remote *name_rmt;
struct xfs_buf *bp1;
struct xfs_buf *bp2;
int error;
#ifdef DEBUG
struct xfs_attr3_icleaf_hdr ichdr1;
struct xfs_attr3_icleaf_hdr ichdr2;
xfs_attr_leaf_name_local_t *name_loc;
int namelen1, namelen2;
char *name1, *name2;
#endif /* DEBUG */
trace_xfs_attr_leaf_flipflags(args);
/*
* Read the block containing the "old" attr
*/
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno, -1, &bp1);
if (error)
return error;
/*
* Read the block containing the "new" attr, if it is different
*/
if (args->blkno2 != args->blkno) {
error = xfs_attr3_leaf_read(args->trans, args->dp, args->blkno2,
-1, &bp2);
if (error)
return error;
} else {
bp2 = bp1;
}
leaf1 = bp1->b_addr;
entry1 = &xfs_attr3_leaf_entryp(leaf1)[args->index];
leaf2 = bp2->b_addr;
entry2 = &xfs_attr3_leaf_entryp(leaf2)[args->index2];
#ifdef DEBUG
xfs_attr3_leaf_hdr_from_disk(&ichdr1, leaf1);
ASSERT(args->index < ichdr1.count);
ASSERT(args->index >= 0);
xfs_attr3_leaf_hdr_from_disk(&ichdr2, leaf2);
ASSERT(args->index2 < ichdr2.count);
ASSERT(args->index2 >= 0);
if (entry1->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr3_leaf_name_local(leaf1, args->index);
namelen1 = name_loc->namelen;
name1 = (char *)name_loc->nameval;
} else {
name_rmt = xfs_attr3_leaf_name_remote(leaf1, args->index);
namelen1 = name_rmt->namelen;
name1 = (char *)name_rmt->name;
}
if (entry2->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr3_leaf_name_local(leaf2, args->index2);
namelen2 = name_loc->namelen;
name2 = (char *)name_loc->nameval;
} else {
name_rmt = xfs_attr3_leaf_name_remote(leaf2, args->index2);
namelen2 = name_rmt->namelen;
name2 = (char *)name_rmt->name;
}
ASSERT(be32_to_cpu(entry1->hashval) == be32_to_cpu(entry2->hashval));
ASSERT(namelen1 == namelen2);
ASSERT(memcmp(name1, name2, namelen1) == 0);
#endif /* DEBUG */
ASSERT(entry1->flags & XFS_ATTR_INCOMPLETE);
ASSERT((entry2->flags & XFS_ATTR_INCOMPLETE) == 0);
entry1->flags &= ~XFS_ATTR_INCOMPLETE;
xfs_trans_log_buf(args->trans, bp1,
XFS_DA_LOGRANGE(leaf1, entry1, sizeof(*entry1)));
if (args->rmtblkno) {
ASSERT((entry1->flags & XFS_ATTR_LOCAL) == 0);
name_rmt = xfs_attr3_leaf_name_remote(leaf1, args->index);
name_rmt->valueblk = cpu_to_be32(args->rmtblkno);
name_rmt->valuelen = cpu_to_be32(args->valuelen);
xfs_trans_log_buf(args->trans, bp1,
XFS_DA_LOGRANGE(leaf1, name_rmt, sizeof(*name_rmt)));
}
entry2->flags |= XFS_ATTR_INCOMPLETE;
xfs_trans_log_buf(args->trans, bp2,
XFS_DA_LOGRANGE(leaf2, entry2, sizeof(*entry2)));
if ((entry2->flags & XFS_ATTR_LOCAL) == 0) {
name_rmt = xfs_attr3_leaf_name_remote(leaf2, args->index2);
name_rmt->valueblk = 0;
name_rmt->valuelen = 0;
xfs_trans_log_buf(args->trans, bp2,
XFS_DA_LOGRANGE(leaf2, name_rmt, sizeof(*name_rmt)));
}
/*
* Commit the flag value change and start the next trans in series.
*/
error = xfs_trans_roll(&args->trans, args->dp);
return error;
} | 651 | True | 1 |
||
CVE-2015-0274 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1031853', 'name': '1031853', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2543-1', 'name': 'USN-2543-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2544-1', 'name': 'USN-2544-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.5', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote attribute replacement, which allows local users to cause a denial of service (transaction overrun and data corruption) or possibly gain privileges by leveraging XFS filesystem access.'}] | 2015-03-27T01:59Z | 2015-03-16T10:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Dave Chinner | 2014-05-06 07:37:31+10:00 | xfs: remote attribute overwrite causes transaction overrun
Commit e461fcb ("xfs: remote attribute lookups require the value
length") passes the remote attribute length in the xfs_da_args
structure on lookup so that CRC calculations and validity checking
can be performed correctly by related code. This, unfortunately has
the side effect of changing the args->valuelen parameter in cases
where it shouldn't.
That is, when we replace a remote attribute, the incoming
replacement stores the value and length in args->value and
args->valuelen, but then the lookup which finds the existing remote
attribute overwrites args->valuelen with the length of the remote
attribute being replaced. Hence when we go to create the new
attribute, we create it of the size of the existing remote
attribute, not the size it is supposed to be. When the new attribute
is much smaller than the old attribute, this results in a
transaction overrun and an ASSERT() failure on a debug kernel:
XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 331
Fix this by keeping the remote attribute value length separate to
the attribute value length in the xfs_da_args structure. The enables
us to pass the length of the remote attribute to be removed without
overwriting the new attribute's length.
Also, ensure that when we save remote block contexts for a later
rename we zero the original state variables so that we don't confuse
the state of the attribute to be removes with the state of the new
attribute that we just added. [Spotted by Brain Foster.]
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Brian Foster <[email protected]>
Signed-off-by: Dave Chinner <[email protected]> | 8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 | 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_attr3_leaf_getvalue | xfs_attr3_leaf_getvalue( struct xfs_buf * bp , struct xfs_da_args * args) | ['bp', 'args'] | xfs_attr3_leaf_getvalue(
struct xfs_buf *bp,
struct xfs_da_args *args)
{
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_name_local *name_loc;
struct xfs_attr_leaf_name_remote *name_rmt;
int valuelen;
leaf = bp->b_addr;
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
ASSERT(ichdr.count < XFS_LBSIZE(args->dp->i_mount) / 8);
ASSERT(args->index < ichdr.count);
entry = &xfs_attr3_leaf_entryp(leaf)[args->index];
if (entry->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr3_leaf_name_local(leaf, args->index);
ASSERT(name_loc->namelen == args->namelen);
ASSERT(memcmp(args->name, name_loc->nameval, args->namelen) == 0);
valuelen = be16_to_cpu(name_loc->valuelen);
if (args->flags & ATTR_KERNOVAL) {
args->valuelen = valuelen;
return 0;
}
if (args->valuelen < valuelen) {
args->valuelen = valuelen;
return XFS_ERROR(ERANGE);
}
args->valuelen = valuelen;
memcpy(args->value, &name_loc->nameval[args->namelen], valuelen);
} else {
name_rmt = xfs_attr3_leaf_name_remote(leaf, args->index);
ASSERT(name_rmt->namelen == args->namelen);
ASSERT(memcmp(args->name, name_rmt->name, args->namelen) == 0);
valuelen = be32_to_cpu(name_rmt->valuelen);
args->rmtblkno = be32_to_cpu(name_rmt->valueblk);
args->rmtblkcnt = xfs_attr3_rmt_blocks(args->dp->i_mount,
valuelen);
if (args->flags & ATTR_KERNOVAL) {
args->valuelen = valuelen;
return 0;
}
if (args->valuelen < valuelen) {
args->valuelen = valuelen;
return XFS_ERROR(ERANGE);
}
args->valuelen = valuelen;
}
return 0;
} | 354 | True | 1 |
||
CVE-2015-0274 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1031853', 'name': '1031853', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2543-1', 'name': 'USN-2543-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2544-1', 'name': 'USN-2544-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.5', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote attribute replacement, which allows local users to cause a denial of service (transaction overrun and data corruption) or possibly gain privileges by leveraging XFS filesystem access.'}] | 2015-03-27T01:59Z | 2015-03-16T10:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Dave Chinner | 2014-05-06 07:37:31+10:00 | xfs: remote attribute overwrite causes transaction overrun
Commit e461fcb ("xfs: remote attribute lookups require the value
length") passes the remote attribute length in the xfs_da_args
structure on lookup so that CRC calculations and validity checking
can be performed correctly by related code. This, unfortunately has
the side effect of changing the args->valuelen parameter in cases
where it shouldn't.
That is, when we replace a remote attribute, the incoming
replacement stores the value and length in args->value and
args->valuelen, but then the lookup which finds the existing remote
attribute overwrites args->valuelen with the length of the remote
attribute being replaced. Hence when we go to create the new
attribute, we create it of the size of the existing remote
attribute, not the size it is supposed to be. When the new attribute
is much smaller than the old attribute, this results in a
transaction overrun and an ASSERT() failure on a debug kernel:
XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 331
Fix this by keeping the remote attribute value length separate to
the attribute value length in the xfs_da_args structure. The enables
us to pass the length of the remote attribute to be removed without
overwriting the new attribute's length.
Also, ensure that when we save remote block contexts for a later
rename we zero the original state variables so that we don't confuse
the state of the attribute to be removes with the state of the new
attribute that we just added. [Spotted by Brain Foster.]
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Brian Foster <[email protected]>
Signed-off-by: Dave Chinner <[email protected]> | 8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 | 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_attr3_leaf_lookup_int | xfs_attr3_leaf_lookup_int( struct xfs_buf * bp , struct xfs_da_args * args) | ['bp', 'args'] | xfs_attr3_leaf_lookup_int(
struct xfs_buf *bp,
struct xfs_da_args *args)
{
struct xfs_attr_leafblock *leaf;
struct xfs_attr3_icleaf_hdr ichdr;
struct xfs_attr_leaf_entry *entry;
struct xfs_attr_leaf_entry *entries;
struct xfs_attr_leaf_name_local *name_loc;
struct xfs_attr_leaf_name_remote *name_rmt;
xfs_dahash_t hashval;
int probe;
int span;
trace_xfs_attr_leaf_lookup(args);
leaf = bp->b_addr;
xfs_attr3_leaf_hdr_from_disk(&ichdr, leaf);
entries = xfs_attr3_leaf_entryp(leaf);
ASSERT(ichdr.count < XFS_LBSIZE(args->dp->i_mount) / 8);
/*
* Binary search. (note: small blocks will skip this loop)
*/
hashval = args->hashval;
probe = span = ichdr.count / 2;
for (entry = &entries[probe]; span > 4; entry = &entries[probe]) {
span /= 2;
if (be32_to_cpu(entry->hashval) < hashval)
probe += span;
else if (be32_to_cpu(entry->hashval) > hashval)
probe -= span;
else
break;
}
ASSERT(probe >= 0 && (!ichdr.count || probe < ichdr.count));
ASSERT(span <= 4 || be32_to_cpu(entry->hashval) == hashval);
/*
* Since we may have duplicate hashval's, find the first matching
* hashval in the leaf.
*/
while (probe > 0 && be32_to_cpu(entry->hashval) >= hashval) {
entry--;
probe--;
}
while (probe < ichdr.count &&
be32_to_cpu(entry->hashval) < hashval) {
entry++;
probe++;
}
if (probe == ichdr.count || be32_to_cpu(entry->hashval) != hashval) {
args->index = probe;
return XFS_ERROR(ENOATTR);
}
/*
* Duplicate keys may be present, so search all of them for a match.
*/
for (; probe < ichdr.count && (be32_to_cpu(entry->hashval) == hashval);
entry++, probe++) {
/*
* GROT: Add code to remove incomplete entries.
*/
/*
* If we are looking for INCOMPLETE entries, show only those.
* If we are looking for complete entries, show only those.
*/
if ((args->flags & XFS_ATTR_INCOMPLETE) !=
(entry->flags & XFS_ATTR_INCOMPLETE)) {
continue;
}
if (entry->flags & XFS_ATTR_LOCAL) {
name_loc = xfs_attr3_leaf_name_local(leaf, probe);
if (name_loc->namelen != args->namelen)
continue;
if (memcmp(args->name, name_loc->nameval,
args->namelen) != 0)
continue;
if (!xfs_attr_namesp_match(args->flags, entry->flags))
continue;
args->index = probe;
return XFS_ERROR(EEXIST);
} else {
name_rmt = xfs_attr3_leaf_name_remote(leaf, probe);
if (name_rmt->namelen != args->namelen)
continue;
if (memcmp(args->name, name_rmt->name,
args->namelen) != 0)
continue;
if (!xfs_attr_namesp_match(args->flags, entry->flags))
continue;
args->index = probe;
args->valuelen = be32_to_cpu(name_rmt->valuelen);
args->rmtblkno = be32_to_cpu(name_rmt->valueblk);
args->rmtblkcnt = xfs_attr3_rmt_blocks(
args->dp->i_mount,
args->valuelen);
return XFS_ERROR(EEXIST);
}
}
args->index = probe;
return XFS_ERROR(ENOATTR);
} | 544 | True | 1 |
||
CVE-2015-0274 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1031853', 'name': '1031853', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2543-1', 'name': 'USN-2543-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2544-1', 'name': 'USN-2544-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.5', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote attribute replacement, which allows local users to cause a denial of service (transaction overrun and data corruption) or possibly gain privileges by leveraging XFS filesystem access.'}] | 2015-03-27T01:59Z | 2015-03-16T10:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Dave Chinner | 2014-05-06 07:37:31+10:00 | xfs: remote attribute overwrite causes transaction overrun
Commit e461fcb ("xfs: remote attribute lookups require the value
length") passes the remote attribute length in the xfs_da_args
structure on lookup so that CRC calculations and validity checking
can be performed correctly by related code. This, unfortunately has
the side effect of changing the args->valuelen parameter in cases
where it shouldn't.
That is, when we replace a remote attribute, the incoming
replacement stores the value and length in args->value and
args->valuelen, but then the lookup which finds the existing remote
attribute overwrites args->valuelen with the length of the remote
attribute being replaced. Hence when we go to create the new
attribute, we create it of the size of the existing remote
attribute, not the size it is supposed to be. When the new attribute
is much smaller than the old attribute, this results in a
transaction overrun and an ASSERT() failure on a debug kernel:
XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 331
Fix this by keeping the remote attribute value length separate to
the attribute value length in the xfs_da_args structure. The enables
us to pass the length of the remote attribute to be removed without
overwriting the new attribute's length.
Also, ensure that when we save remote block contexts for a later
rename we zero the original state variables so that we don't confuse
the state of the attribute to be removes with the state of the new
attribute that we just added. [Spotted by Brain Foster.]
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Brian Foster <[email protected]>
Signed-off-by: Dave Chinner <[email protected]> | 8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 | 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_attr_rmtval_get | xfs_attr_rmtval_get( struct xfs_da_args * args) | ['args'] | xfs_attr_rmtval_get(
struct xfs_da_args *args)
{
struct xfs_bmbt_irec map[ATTR_RMTVALUE_MAPSIZE];
struct xfs_mount *mp = args->dp->i_mount;
struct xfs_buf *bp;
xfs_dablk_t lblkno = args->rmtblkno;
__uint8_t *dst = args->value;
int valuelen = args->valuelen;
int nmap;
int error;
int blkcnt = args->rmtblkcnt;
int i;
int offset = 0;
trace_xfs_attr_rmtval_get(args);
ASSERT(!(args->flags & ATTR_KERNOVAL));
while (valuelen > 0) {
nmap = ATTR_RMTVALUE_MAPSIZE;
error = xfs_bmapi_read(args->dp, (xfs_fileoff_t)lblkno,
blkcnt, map, &nmap,
XFS_BMAPI_ATTRFORK);
if (error)
return error;
ASSERT(nmap >= 1);
for (i = 0; (i < nmap) && (valuelen > 0); i++) {
xfs_daddr_t dblkno;
int dblkcnt;
ASSERT((map[i].br_startblock != DELAYSTARTBLOCK) &&
(map[i].br_startblock != HOLESTARTBLOCK));
dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock);
dblkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount);
error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp,
dblkno, dblkcnt, 0, &bp,
&xfs_attr3_rmt_buf_ops);
if (error)
return error;
error = xfs_attr_rmtval_copyout(mp, bp, args->dp->i_ino,
&offset, &valuelen,
&dst);
xfs_buf_relse(bp);
if (error)
return error;
/* roll attribute extent map forwards */
lblkno += map[i].br_blockcount;
blkcnt -= map[i].br_blockcount;
}
}
ASSERT(valuelen == 0);
return 0;
} | 319 | True | 1 |
||
CVE-2015-0274 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1195248', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1031853', 'name': '1031853', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0290.html', 'name': 'RHSA-2015:0290', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2543-1', 'name': 'USN-2543-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2544-1', 'name': 'USN-2544-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.14.5', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote attribute replacement, which allows local users to cause a denial of service (transaction overrun and data corruption) or possibly gain privileges by leveraging XFS filesystem access.'}] | 2015-03-27T01:59Z | 2015-03-16T10:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Dave Chinner | 2014-05-06 07:37:31+10:00 | xfs: remote attribute overwrite causes transaction overrun
Commit e461fcb ("xfs: remote attribute lookups require the value
length") passes the remote attribute length in the xfs_da_args
structure on lookup so that CRC calculations and validity checking
can be performed correctly by related code. This, unfortunately has
the side effect of changing the args->valuelen parameter in cases
where it shouldn't.
That is, when we replace a remote attribute, the incoming
replacement stores the value and length in args->value and
args->valuelen, but then the lookup which finds the existing remote
attribute overwrites args->valuelen with the length of the remote
attribute being replaced. Hence when we go to create the new
attribute, we create it of the size of the existing remote
attribute, not the size it is supposed to be. When the new attribute
is much smaller than the old attribute, this results in a
transaction overrun and an ASSERT() failure on a debug kernel:
XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 331
Fix this by keeping the remote attribute value length separate to
the attribute value length in the xfs_da_args structure. The enables
us to pass the length of the remote attribute to be removed without
overwriting the new attribute's length.
Also, ensure that when we save remote block contexts for a later
rename we zero the original state variables so that we don't confuse
the state of the attribute to be removes with the state of the new
attribute that we just added. [Spotted by Brain Foster.]
Signed-off-by: Dave Chinner <[email protected]>
Reviewed-by: Brian Foster <[email protected]>
Signed-off-by: Dave Chinner <[email protected]> | 8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 | 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_attr_rmtval_set | xfs_attr_rmtval_set( struct xfs_da_args * args) | ['args'] | xfs_attr_rmtval_set(
struct xfs_da_args *args)
{
struct xfs_inode *dp = args->dp;
struct xfs_mount *mp = dp->i_mount;
struct xfs_bmbt_irec map;
xfs_dablk_t lblkno;
xfs_fileoff_t lfileoff = 0;
__uint8_t *src = args->value;
int blkcnt;
int valuelen;
int nmap;
int error;
int offset = 0;
trace_xfs_attr_rmtval_set(args);
/*
* Find a "hole" in the attribute address space large enough for
* us to drop the new attribute's value into. Because CRC enable
* attributes have headers, we can't just do a straight byte to FSB
* conversion and have to take the header space into account.
*/
blkcnt = xfs_attr3_rmt_blocks(mp, args->valuelen);
error = xfs_bmap_first_unused(args->trans, args->dp, blkcnt, &lfileoff,
XFS_ATTR_FORK);
if (error)
return error;
args->rmtblkno = lblkno = (xfs_dablk_t)lfileoff;
args->rmtblkcnt = blkcnt;
/*
* Roll through the "value", allocating blocks on disk as required.
*/
while (blkcnt > 0) {
int committed;
/*
* Allocate a single extent, up to the size of the value.
*/
xfs_bmap_init(args->flist, args->firstblock);
nmap = 1;
error = xfs_bmapi_write(args->trans, dp, (xfs_fileoff_t)lblkno,
blkcnt,
XFS_BMAPI_ATTRFORK | XFS_BMAPI_METADATA,
args->firstblock, args->total, &map, &nmap,
args->flist);
if (!error) {
error = xfs_bmap_finish(&args->trans, args->flist,
&committed);
}
if (error) {
ASSERT(committed);
args->trans = NULL;
xfs_bmap_cancel(args->flist);
return(error);
}
/*
* bmap_finish() may have committed the last trans and started
* a new one. We need the inode to be in all transactions.
*/
if (committed)
xfs_trans_ijoin(args->trans, dp, 0);
ASSERT(nmap == 1);
ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
(map.br_startblock != HOLESTARTBLOCK));
lblkno += map.br_blockcount;
blkcnt -= map.br_blockcount;
/*
* Start the next trans in the chain.
*/
error = xfs_trans_roll(&args->trans, dp);
if (error)
return (error);
}
/*
* Roll through the "value", copying the attribute value to the
* already-allocated blocks. Blocks are written synchronously
* so that we can know they are all on disk before we turn off
* the INCOMPLETE flag.
*/
lblkno = args->rmtblkno;
blkcnt = args->rmtblkcnt;
valuelen = args->valuelen;
while (valuelen > 0) {
struct xfs_buf *bp;
xfs_daddr_t dblkno;
int dblkcnt;
ASSERT(blkcnt > 0);
xfs_bmap_init(args->flist, args->firstblock);
nmap = 1;
error = xfs_bmapi_read(dp, (xfs_fileoff_t)lblkno,
blkcnt, &map, &nmap,
XFS_BMAPI_ATTRFORK);
if (error)
return(error);
ASSERT(nmap == 1);
ASSERT((map.br_startblock != DELAYSTARTBLOCK) &&
(map.br_startblock != HOLESTARTBLOCK));
dblkno = XFS_FSB_TO_DADDR(mp, map.br_startblock),
dblkcnt = XFS_FSB_TO_BB(mp, map.br_blockcount);
bp = xfs_buf_get(mp->m_ddev_targp, dblkno, dblkcnt, 0);
if (!bp)
return ENOMEM;
bp->b_ops = &xfs_attr3_rmt_buf_ops;
xfs_attr_rmtval_copyin(mp, bp, args->dp->i_ino, &offset,
&valuelen, &src);
error = xfs_bwrite(bp); /* GROT: NOTE: synchronous write */
xfs_buf_relse(bp);
if (error)
return error;
/* roll attribute extent map forwards */
lblkno += map.br_blockcount;
blkcnt -= map.br_blockcount;
}
ASSERT(valuelen == 0);
return 0;
} | 548 | True | 1 |
||
CVE-2015-1805 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2015/06/06/2', 'name': '[oss-security] 20150606 CVE-2015-1805 Linux kernel: pipe: iovec overrun leading to memory corruption', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.debian.org/security/2015/dsa-3290', 'name': 'DSA-3290', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1199.html', 'name': 'RHSA-2015:1199', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1211.html', 'name': 'RHSA-2015:1211', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1190.html', 'name': 'RHSA-2015:1190', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-04-02.html', 'name': 'http://source.android.com/security/bulletin/2016-04-02.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-05-01.html', 'name': 'http://source.android.com/security/bulletin/2016-05-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/74951', 'name': '74951', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1042.html', 'name': 'RHSA-2015:1042', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1032454', 'name': '1032454', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1120.html', 'name': 'RHSA-2015:1120', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-1', 'name': 'USN-2967-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-2', 'name': 'USN-2967-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html', 'name': 'SUSE-SU-2015:1611', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html', 'name': 'SUSE-SU-2015:1592', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html', 'name': 'SUSE-SU-2015:1478', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2681-1', 'name': 'USN-2681-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2680-1', 'name': 'USN-2680-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2679-1', 'name': 'USN-2679-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html', 'name': 'SUSE-SU-2015:1491', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00010.html', 'name': 'SUSE-SU-2015:1490', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html', 'name': 'SUSE-SU-2015:1489', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html', 'name': 'SUSE-SU-2015:1488', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html', 'name': 'SUSE-SU-2015:1487', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html', 'name': 'SUSE-SU-2015:1324', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html', 'name': 'SUSE-SU-2015:1224', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1138.html', 'name': 'RHSA-2015:1138', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1137.html', 'name': 'RHSA-2015:1137', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1082.html', 'name': 'RHSA-2015:1082', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1081.html', 'name': 'RHSA-2015:1081', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-17'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:4.4.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.10', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun."'}] | 2018-01-05T02:30Z | 2015-08-08T10:59Z | DEPRECATED: Code | This entry has been deprecated. It was originally used for organizing the Development View (CWE-699) and some other views, but it introduced unnecessary complexity and depth to the resulting tree. | https://cwe.mitre.org/data/definitions/17.html | 1 | Al Viro | 2014-04-03 15:05:18-04:00 | new helper: copy_page_from_iter()
parallel to copy_page_to_iter(). pipe_write() switched to it (and became
->write_iter()).
Signed-off-by: Al Viro <[email protected]> | f0d1bec9d58d4c038d0ac958c9af82be6eb18045 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | iov_fault_in_pages_read | iov_fault_in_pages_read( struct iovec * iov , unsigned long len) | ['iov', 'len'] | static void iov_fault_in_pages_read(struct iovec *iov, unsigned long len)
{
while (!iov->iov_len)
iov++;
while (len > 0) {
unsigned long this_len;
this_len = min_t(unsigned long, len, iov->iov_len);
fault_in_pages_readable(iov->iov_base, this_len);
len -= this_len;
iov++;
}
} | 65 | True | 1 |
||
CVE-2015-1805 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2015/06/06/2', 'name': '[oss-security] 20150606 CVE-2015-1805 Linux kernel: pipe: iovec overrun leading to memory corruption', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.debian.org/security/2015/dsa-3290', 'name': 'DSA-3290', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1199.html', 'name': 'RHSA-2015:1199', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1211.html', 'name': 'RHSA-2015:1211', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1190.html', 'name': 'RHSA-2015:1190', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-04-02.html', 'name': 'http://source.android.com/security/bulletin/2016-04-02.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-05-01.html', 'name': 'http://source.android.com/security/bulletin/2016-05-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/74951', 'name': '74951', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1042.html', 'name': 'RHSA-2015:1042', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1032454', 'name': '1032454', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1120.html', 'name': 'RHSA-2015:1120', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-1', 'name': 'USN-2967-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-2', 'name': 'USN-2967-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html', 'name': 'SUSE-SU-2015:1611', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html', 'name': 'SUSE-SU-2015:1592', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html', 'name': 'SUSE-SU-2015:1478', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2681-1', 'name': 'USN-2681-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2680-1', 'name': 'USN-2680-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2679-1', 'name': 'USN-2679-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html', 'name': 'SUSE-SU-2015:1491', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00010.html', 'name': 'SUSE-SU-2015:1490', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html', 'name': 'SUSE-SU-2015:1489', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html', 'name': 'SUSE-SU-2015:1488', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html', 'name': 'SUSE-SU-2015:1487', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html', 'name': 'SUSE-SU-2015:1324', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html', 'name': 'SUSE-SU-2015:1224', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1138.html', 'name': 'RHSA-2015:1138', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1137.html', 'name': 'RHSA-2015:1137', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1082.html', 'name': 'RHSA-2015:1082', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1081.html', 'name': 'RHSA-2015:1081', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-17'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:4.4.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.10', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun."'}] | 2018-01-05T02:30Z | 2015-08-08T10:59Z | DEPRECATED: Code | This entry has been deprecated. It was originally used for organizing the Development View (CWE-699) and some other views, but it introduced unnecessary complexity and depth to the resulting tree. | https://cwe.mitre.org/data/definitions/17.html | 1 | Al Viro | 2014-04-03 15:05:18-04:00 | new helper: copy_page_from_iter()
parallel to copy_page_to_iter(). pipe_write() switched to it (and became
->write_iter()).
Signed-off-by: Al Viro <[email protected]> | f0d1bec9d58d4c038d0ac958c9af82be6eb18045 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | pipe_iov_copy_from_user | pipe_iov_copy_from_user( void * to , struct iovec * iov , unsigned long len , int atomic) | ['to', 'iov', 'len', 'atomic'] | pipe_iov_copy_from_user(void *to, struct iovec *iov, unsigned long len,
int atomic)
{
unsigned long copy;
while (len > 0) {
while (!iov->iov_len)
iov++;
copy = min_t(unsigned long, len, iov->iov_len);
if (atomic) {
if (__copy_from_user_inatomic(to, iov->iov_base, copy))
return -EFAULT;
} else {
if (copy_from_user(to, iov->iov_base, copy))
return -EFAULT;
}
to += copy;
len -= copy;
iov->iov_base += copy;
iov->iov_len -= copy;
}
return 0;
} | 122 | True | 1 |
||
CVE-2015-1805 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'https://github.com/torvalds/linux/commit/f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'https://github.com/torvalds/linux/commit/637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1202855', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=637b58c2887e5e57850865839cc75f59184b23d1', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f0d1bec9d58d4c038d0ac958c9af82be6eb18045', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2015/06/06/2', 'name': '[oss-security] 20150606 CVE-2015-1805 Linux kernel: pipe: iovec overrun leading to memory corruption', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.debian.org/security/2015/dsa-3290', 'name': 'DSA-3290', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1199.html', 'name': 'RHSA-2015:1199', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1211.html', 'name': 'RHSA-2015:1211', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1190.html', 'name': 'RHSA-2015:1190', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-04-02.html', 'name': 'http://source.android.com/security/bulletin/2016-04-02.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://source.android.com/security/bulletin/2016-05-01.html', 'name': 'http://source.android.com/security/bulletin/2016-05-01.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/74951', 'name': '74951', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1042.html', 'name': 'RHSA-2015:1042', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1032454', 'name': '1032454', 'refsource': 'SECTRACK', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1120.html', 'name': 'RHSA-2015:1120', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-1', 'name': 'USN-2967-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2967-2', 'name': 'USN-2967-2', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html', 'name': 'SUSE-SU-2015:1611', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html', 'name': 'SUSE-SU-2015:1592', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html', 'name': 'SUSE-SU-2015:1478', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2681-1', 'name': 'USN-2681-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2680-1', 'name': 'USN-2680-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2679-1', 'name': 'USN-2679-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00011.html', 'name': 'SUSE-SU-2015:1491', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00010.html', 'name': 'SUSE-SU-2015:1490', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html', 'name': 'SUSE-SU-2015:1489', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html', 'name': 'SUSE-SU-2015:1488', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html', 'name': 'SUSE-SU-2015:1487', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html', 'name': 'SUSE-SU-2015:1324', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html', 'name': 'SUSE-SU-2015:1224', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1138.html', 'name': 'RHSA-2015:1138', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1137.html', 'name': 'RHSA-2015:1137', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1082.html', 'name': 'RHSA-2015:1082', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1081.html', 'name': 'RHSA-2015:1081', 'refsource': 'REDHAT', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-17'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:4.4.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.0.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.10', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in the Linux kernel before 3.16 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun."'}] | 2018-01-05T02:30Z | 2015-08-08T10:59Z | DEPRECATED: Code | This entry has been deprecated. It was originally used for organizing the Development View (CWE-699) and some other views, but it introduced unnecessary complexity and depth to the resulting tree. | https://cwe.mitre.org/data/definitions/17.html | 1 | Al Viro | 2014-04-03 15:05:18-04:00 | new helper: copy_page_from_iter()
parallel to copy_page_to_iter(). pipe_write() switched to it (and became
->write_iter()).
Signed-off-by: Al Viro <[email protected]> | f0d1bec9d58d4c038d0ac958c9af82be6eb18045 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | pipe_write | pipe_write( struct kiocb * iocb , const struct iovec * _iov , unsigned long nr_segs , loff_t ppos) | ['iocb', '_iov', 'nr_segs', 'ppos'] | pipe_write(struct kiocb *iocb, const struct iovec *_iov,
unsigned long nr_segs, loff_t ppos)
{
struct file *filp = iocb->ki_filp;
struct pipe_inode_info *pipe = filp->private_data;
ssize_t ret;
int do_wakeup;
struct iovec *iov = (struct iovec *)_iov;
size_t total_len;
ssize_t chars;
total_len = iov_length(iov, nr_segs);
/* Null write succeeds. */
if (unlikely(total_len == 0))
return 0;
do_wakeup = 0;
ret = 0;
__pipe_lock(pipe);
if (!pipe->readers) {
send_sig(SIGPIPE, current, 0);
ret = -EPIPE;
goto out;
}
/* We try to merge small writes */
chars = total_len & (PAGE_SIZE-1); /* size of the last buffer */
if (pipe->nrbufs && chars != 0) {
int lastbuf = (pipe->curbuf + pipe->nrbufs - 1) &
(pipe->buffers - 1);
struct pipe_buffer *buf = pipe->bufs + lastbuf;
const struct pipe_buf_operations *ops = buf->ops;
int offset = buf->offset + buf->len;
if (ops->can_merge && offset + chars <= PAGE_SIZE) {
int error, atomic = 1;
void *addr;
error = ops->confirm(pipe, buf);
if (error)
goto out;
iov_fault_in_pages_read(iov, chars);
redo1:
if (atomic)
addr = kmap_atomic(buf->page);
else
addr = kmap(buf->page);
error = pipe_iov_copy_from_user(offset + addr, iov,
chars, atomic);
if (atomic)
kunmap_atomic(addr);
else
kunmap(buf->page);
ret = error;
do_wakeup = 1;
if (error) {
if (atomic) {
atomic = 0;
goto redo1;
}
goto out;
}
buf->len += chars;
total_len -= chars;
ret = chars;
if (!total_len)
goto out;
}
}
for (;;) {
int bufs;
if (!pipe->readers) {
send_sig(SIGPIPE, current, 0);
if (!ret)
ret = -EPIPE;
break;
}
bufs = pipe->nrbufs;
if (bufs < pipe->buffers) {
int newbuf = (pipe->curbuf + bufs) & (pipe->buffers-1);
struct pipe_buffer *buf = pipe->bufs + newbuf;
struct page *page = pipe->tmp_page;
char *src;
int error, atomic = 1;
if (!page) {
page = alloc_page(GFP_HIGHUSER);
if (unlikely(!page)) {
ret = ret ? : -ENOMEM;
break;
}
pipe->tmp_page = page;
}
/* Always wake up, even if the copy fails. Otherwise
* we lock up (O_NONBLOCK-)readers that sleep due to
* syscall merging.
* FIXME! Is this really true?
*/
do_wakeup = 1;
chars = PAGE_SIZE;
if (chars > total_len)
chars = total_len;
iov_fault_in_pages_read(iov, chars);
redo2:
if (atomic)
src = kmap_atomic(page);
else
src = kmap(page);
error = pipe_iov_copy_from_user(src, iov, chars,
atomic);
if (atomic)
kunmap_atomic(src);
else
kunmap(page);
if (unlikely(error)) {
if (atomic) {
atomic = 0;
goto redo2;
}
if (!ret)
ret = error;
break;
}
ret += chars;
/* Insert it into the buffer array */
buf->page = page;
buf->ops = &anon_pipe_buf_ops;
buf->offset = 0;
buf->len = chars;
buf->flags = 0;
if (is_packetized(filp)) {
buf->ops = &packet_pipe_buf_ops;
buf->flags = PIPE_BUF_FLAG_PACKET;
}
pipe->nrbufs = ++bufs;
pipe->tmp_page = NULL;
total_len -= chars;
if (!total_len)
break;
}
if (bufs < pipe->buffers)
continue;
if (filp->f_flags & O_NONBLOCK) {
if (!ret)
ret = -EAGAIN;
break;
}
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
break;
}
if (do_wakeup) {
wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM);
kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
do_wakeup = 0;
}
pipe->waiting_writers++;
pipe_wait(pipe);
pipe->waiting_writers--;
}
out:
__pipe_unlock(pipe);
if (do_wakeup) {
wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM);
kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
}
if (ret > 0 && sb_start_write_trylock(file_inode(filp)->i_sb)) {
int err = file_update_time(filp);
if (err)
ret = err;
sb_end_write(file_inode(filp)->i_sb);
}
return ret;
} | 880 | True | 1 |
||
CVE-2014-7284 | False | False | False | False | AV:N/AC:L/Au:N/C:N/I:P/A:P | NETWORK | LOW | NONE | NONE | PARTIAL | PARTIAL | 6.4 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/3d4405226d27b3a215e4d03cfa51f536244e5de7', 'name': 'https://github.com/torvalds/linux/commit/3d4405226d27b3a215e4d03cfa51f536244e5de7', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3d4405226d27b3a215e4d03cfa51f536244e5de7', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3d4405226d27b3a215e4d03cfa51f536244e5de7', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'https://web.archive.org/web/20141002163852/http://secondlookforensics.com/ngro-linux-kernel-bug/', 'name': 'https://web.archive.org/web/20141002163852/http://secondlookforensics.com/ngro-linux-kernel-bug/', 'refsource': 'MISC', 'tags': ['Exploit']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/10/01/19', 'name': '[oss-security] 20141001 CVE Request: linux kernel net_get_random_once bug', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1148788', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1148788', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.11:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.7:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.9:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.8:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The net_get_random_once implementation in net/core/utils.c in the Linux kernel 3.13.x and 3.14.x before 3.14.5 on certain Intel processors does not perform the intended slow-path operation to initialize random seeds, which makes it easier for remote attackers to spoof or disrupt IP communication by leveraging the predictability of TCP sequence numbers, TCP and UDP port numbers, and IP ID values.'}] | 2014-10-15T19:20Z | 2014-10-13T10:55Z | 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 | Hannes Frederic Sowa | 2014-05-11 22:59:30+02:00 | net: avoid dependency of net_get_random_once on nop patching
net_get_random_once depends on the static keys infrastructure to patch up
the branch to the slow path during boot. This was realized by abusing the
static keys api and defining a new initializer to not enable the call
site while still indicating that the branch point should get patched
up. This was needed to have the fast path considered likely by gcc.
The static key initialization during boot up normally walks through all
the registered keys and either patches in ideal nops or enables the jump
site but omitted that step on x86 if ideal nops where already placed at
static_key branch points. Thus net_get_random_once branches not always
became active.
This patch switches net_get_random_once to the ordinary static_key
api and thus places the kernel fast path in the - by gcc considered -
unlikely path. Microbenchmarks on Intel and AMD x86-64 showed that
the unlikely path actually beats the likely path in terms of cycle cost
and that different nop patterns did not make much difference, thus this
switch should not be noticeable.
Fixes: a48e42920ff38b ("net: introduce new macro net_get_random_once")
Reported-by: Tuomas Räsänen <[email protected]>
Cc: Linus Torvalds <[email protected]>
Signed-off-by: Hannes Frederic Sowa <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 3d4405226d27b3a215e4d03cfa51f536244e5de7 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __net_get_random_once | __net_get_random_once( void * buf , int nbytes , bool * done , struct static_key * done_key) | ['buf', 'nbytes', 'done', 'done_key'] | bool __net_get_random_once(void *buf, int nbytes, bool *done,
struct static_key *done_key)
{
static DEFINE_SPINLOCK(lock);
unsigned long flags;
spin_lock_irqsave(&lock, flags);
if (*done) {
spin_unlock_irqrestore(&lock, flags);
return false;
}
get_random_bytes(buf, nbytes);
*done = true;
spin_unlock_irqrestore(&lock, flags);
__net_random_once_disable_jump(done_key);
return true;
} | 84 | True | 1 |
|
CVE-2014-7284 | False | False | False | False | AV:N/AC:L/Au:N/C:N/I:P/A:P | NETWORK | LOW | NONE | NONE | PARTIAL | PARTIAL | 6.4 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/3d4405226d27b3a215e4d03cfa51f536244e5de7', 'name': 'https://github.com/torvalds/linux/commit/3d4405226d27b3a215e4d03cfa51f536244e5de7', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3d4405226d27b3a215e4d03cfa51f536244e5de7', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3d4405226d27b3a215e4d03cfa51f536244e5de7', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'https://web.archive.org/web/20141002163852/http://secondlookforensics.com/ngro-linux-kernel-bug/', 'name': 'https://web.archive.org/web/20141002163852/http://secondlookforensics.com/ngro-linux-kernel-bug/', 'refsource': 'MISC', 'tags': ['Exploit']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/10/01/19', 'name': '[oss-security] 20141001 CVE Request: linux kernel net_get_random_once bug', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.5', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1148788', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1148788', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-200'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.11:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.1:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.6:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.3:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.7:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.9:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.14.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.13.8:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The net_get_random_once implementation in net/core/utils.c in the Linux kernel 3.13.x and 3.14.x before 3.14.5 on certain Intel processors does not perform the intended slow-path operation to initialize random seeds, which makes it easier for remote attackers to spoof or disrupt IP communication by leveraging the predictability of TCP sequence numbers, TCP and UDP port numbers, and IP ID values.'}] | 2014-10-15T19:20Z | 2014-10-13T10:55Z | 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 | Hannes Frederic Sowa | 2014-05-11 22:59:30+02:00 | net: avoid dependency of net_get_random_once on nop patching
net_get_random_once depends on the static keys infrastructure to patch up
the branch to the slow path during boot. This was realized by abusing the
static keys api and defining a new initializer to not enable the call
site while still indicating that the branch point should get patched
up. This was needed to have the fast path considered likely by gcc.
The static key initialization during boot up normally walks through all
the registered keys and either patches in ideal nops or enables the jump
site but omitted that step on x86 if ideal nops where already placed at
static_key branch points. Thus net_get_random_once branches not always
became active.
This patch switches net_get_random_once to the ordinary static_key
api and thus places the kernel fast path in the - by gcc considered -
unlikely path. Microbenchmarks on Intel and AMD x86-64 showed that
the unlikely path actually beats the likely path in terms of cycle cost
and that different nop patterns did not make much difference, thus this
switch should not be noticeable.
Fixes: a48e42920ff38b ("net: introduce new macro net_get_random_once")
Reported-by: Tuomas Räsänen <[email protected]>
Cc: Linus Torvalds <[email protected]>
Signed-off-by: Hannes Frederic Sowa <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 3d4405226d27b3a215e4d03cfa51f536244e5de7 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __net_random_once_deferred | __net_random_once_deferred( struct work_struct * w) | ['w'] | static void __net_random_once_deferred(struct work_struct *w)
{
struct __net_random_once_work *work =
container_of(w, struct __net_random_once_work, work);
if (!static_key_enabled(work->key))
static_key_slow_inc(work->key);
kfree(work);
} | 46 | True | 1 |
|
CVE-2014-9803 | 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://source.android.com/security/bulletin/2016-07-01.html', 'name': 'http://source.android.com/security/bulletin/2016-07-01.html', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://www.kernel.org/pub/linux/kernel/next/patch-v3.15-rc5-next-20140519.xz', 'name': 'https://www.kernel.org/pub/linux/kernel/next/patch-v3.15-rc5-next-20140519.xz', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'name': 'https://github.com/torvalds/linux/commit/5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:rc4:*:*:*:*:*:*', 'versionEndIncluding': '3.15', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:*:*:*:*:*:*:*:*', 'versionEndIncluding': '6.0.1', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'arch/arm64/include/asm/pgtable.h in the Linux kernel before 3.15-rc5-next-20140519, as used in Android before 2016-07-05 on Nexus 5X and 6P devices, mishandles execute-only pages, which allows attackers to gain privileges via a crafted application, aka Android internal bug 28557020.'}] | 2016-07-12T13:52Z | 2016-07-11T01:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Catalin Marinas | 2014-05-16 16:44:32+01:00 | Revert "arm64: Introduce execute-only page access permissions"
This reverts commit bc07c2c6e9ed125d362af0214b6313dca180cb08.
While the aim is increased security for --x memory maps, it does not
protect against kernel level reads. Until SECCOMP is implemented for
arm64, revert this patch to avoid giving a false idea of execute-only
mappings.
Signed-off-by: Catalin Marinas <[email protected]> | 5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | set_pte_at | set_pte_at( struct mm_struct * mm , unsigned long addr , pte_t * ptep , pte_t pte) | ['mm', 'addr', 'ptep', 'pte'] | static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
if (pte_valid_ng(pte)) {
if (!pte_special(pte) && pte_exec(pte))
__sync_icache_dcache(pte, addr);
if (pte_dirty(pte) && pte_write(pte))
pte_val(pte) &= ~PTE_RDONLY;
else
pte_val(pte) |= PTE_RDONLY;
}
set_pte(ptep, pte);
} | 83 | True | 1 |
||
CVE-2014-9803 | 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://source.android.com/security/bulletin/2016-07-01.html', 'name': 'http://source.android.com/security/bulletin/2016-07-01.html', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://www.kernel.org/pub/linux/kernel/next/patch-v3.15-rc5-next-20140519.xz', 'name': 'https://www.kernel.org/pub/linux/kernel/next/patch-v3.15-rc5-next-20140519.xz', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'name': 'https://github.com/torvalds/linux/commit/5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:rc4:*:*:*:*:*:*', 'versionEndIncluding': '3.15', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:*:*:*:*:*:*:*:*', 'versionEndIncluding': '6.0.1', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'arch/arm64/include/asm/pgtable.h in the Linux kernel before 3.15-rc5-next-20140519, as used in Android before 2016-07-05 on Nexus 5X and 6P devices, mishandles execute-only pages, which allows attackers to gain privileges via a crafted application, aka Android internal bug 28557020.'}] | 2016-07-12T13:52Z | 2016-07-11T01:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Catalin Marinas | 2014-05-16 16:44:32+01:00 | Revert "arm64: Introduce execute-only page access permissions"
This reverts commit bc07c2c6e9ed125d362af0214b6313dca180cb08.
While the aim is increased security for --x memory maps, it does not
protect against kernel level reads. Until SECCOMP is implemented for
arm64, revert this patch to avoid giving a false idea of execute-only
mappings.
Signed-off-by: Catalin Marinas <[email protected]> | 5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __do_page_fault | __do_page_fault( struct mm_struct * mm , unsigned long addr , unsigned int mm_flags , unsigned long vm_flags , struct task_struct * tsk) | ['mm', 'addr', 'mm_flags', 'vm_flags', 'tsk'] | static int __do_page_fault(struct mm_struct *mm, unsigned long addr,
unsigned int mm_flags, unsigned long vm_flags,
struct task_struct *tsk)
{
struct vm_area_struct *vma;
int fault;
vma = find_vma(mm, addr);
fault = VM_FAULT_BADMAP;
if (unlikely(!vma))
goto out;
if (unlikely(vma->vm_start > addr))
goto check_stack;
/*
* Ok, we have a good vm_area for this memory access, so we can handle
* it.
*/
good_area:
/*
* Check that the permissions on the VMA allow for the fault which
* occurred.
*/
if (!(vma->vm_flags & vm_flags)) {
fault = VM_FAULT_BADACCESS;
goto out;
}
return handle_mm_fault(mm, vma, addr & PAGE_MASK, mm_flags);
check_stack:
if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr))
goto good_area;
out:
return fault;
} | 134 | True | 1 |
||
CVE-2014-9803 | 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://source.android.com/security/bulletin/2016-07-01.html', 'name': 'http://source.android.com/security/bulletin/2016-07-01.html', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://www.kernel.org/pub/linux/kernel/next/patch-v3.15-rc5-next-20140519.xz', 'name': 'https://www.kernel.org/pub/linux/kernel/next/patch-v3.15-rc5-next-20140519.xz', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'name': 'https://github.com/torvalds/linux/commit/5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-19'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:rc4:*:*:*:*:*:*', 'versionEndIncluding': '3.15', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:google:android:*:*:*:*:*:*:*:*', 'versionEndIncluding': '6.0.1', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'arch/arm64/include/asm/pgtable.h in the Linux kernel before 3.15-rc5-next-20140519, as used in Android before 2016-07-05 on Nexus 5X and 6P devices, mishandles execute-only pages, which allows attackers to gain privileges via a crafted application, aka Android internal bug 28557020.'}] | 2016-07-12T13:52Z | 2016-07-11T01:59Z | Data Processing Errors | Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information. | https://cwe.mitre.org/data/definitions/19.html | 1 | Catalin Marinas | 2014-05-16 16:44:32+01:00 | Revert "arm64: Introduce execute-only page access permissions"
This reverts commit bc07c2c6e9ed125d362af0214b6313dca180cb08.
While the aim is increased security for --x memory maps, it does not
protect against kernel level reads. Until SECCOMP is implemented for
arm64, revert this patch to avoid giving a false idea of execute-only
mappings.
Signed-off-by: Catalin Marinas <[email protected]> | 5a0fdfada3a2aa50d7b947a2e958bf00cbe0d830 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | do_page_fault | do_page_fault( unsigned long addr , unsigned int esr , struct pt_regs * regs) | ['addr', 'esr', 'regs'] | static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
struct pt_regs *regs)
{
struct task_struct *tsk;
struct mm_struct *mm;
int fault, sig, code;
unsigned long vm_flags = VM_READ | VM_WRITE;
unsigned int mm_flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
tsk = current;
mm = tsk->mm;
/* Enable interrupts if they were enabled in the parent context. */
if (interrupts_enabled(regs))
local_irq_enable();
/*
* If we're in an interrupt or have no user context, we must not take
* the fault.
*/
if (in_atomic() || !mm)
goto no_context;
if (user_mode(regs))
mm_flags |= FAULT_FLAG_USER;
if (esr & ESR_LNX_EXEC) {
vm_flags = VM_EXEC;
} else if ((esr & ESR_EL1_WRITE) && !(esr & ESR_EL1_CM)) {
vm_flags = VM_WRITE;
mm_flags |= FAULT_FLAG_WRITE;
}
/*
* As per x86, we may deadlock here. However, since the kernel only
* validly references user space from well defined areas of the code,
* we can bug out early if this is from code which shouldn't.
*/
if (!down_read_trylock(&mm->mmap_sem)) {
if (!user_mode(regs) && !search_exception_tables(regs->pc))
goto no_context;
retry:
down_read(&mm->mmap_sem);
} else {
/*
* The above down_read_trylock() might have succeeded in which
* case, we'll have missed the might_sleep() from down_read().
*/
might_sleep();
#ifdef CONFIG_DEBUG_VM
if (!user_mode(regs) && !search_exception_tables(regs->pc))
goto no_context;
#endif
}
fault = __do_page_fault(mm, addr, mm_flags, vm_flags, tsk);
/*
* If we need to retry but a fatal signal is pending, handle the
* signal first. We do not need to release the mmap_sem because it
* would already be released in __lock_page_or_retry in mm/filemap.c.
*/
if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
return 0;
/*
* Major/minor page fault accounting is only done on the initial
* attempt. If we go through a retry, it is extremely likely that the
* page will be found in page cache at that point.
*/
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
if (mm_flags & FAULT_FLAG_ALLOW_RETRY) {
if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs,
addr);
} else {
tsk->min_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs,
addr);
}
if (fault & VM_FAULT_RETRY) {
/*
* Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk of
* starvation.
*/
mm_flags &= ~FAULT_FLAG_ALLOW_RETRY;
goto retry;
}
}
up_read(&mm->mmap_sem);
/*
* Handle the "normal" case first - VM_FAULT_MAJOR / VM_FAULT_MINOR
*/
if (likely(!(fault & (VM_FAULT_ERROR | VM_FAULT_BADMAP |
VM_FAULT_BADACCESS))))
return 0;
/*
* If we are in kernel mode at this point, we have no context to
* handle this fault with.
*/
if (!user_mode(regs))
goto no_context;
if (fault & VM_FAULT_OOM) {
/*
* We ran out of memory, call the OOM killer, and return to
* userspace (which will retry the fault, or kill us if we got
* oom-killed).
*/
pagefault_out_of_memory();
return 0;
}
if (fault & VM_FAULT_SIGBUS) {
/*
* We had some memory, but were unable to successfully fix up
* this page fault.
*/
sig = SIGBUS;
code = BUS_ADRERR;
} else {
/*
* Something tried to access memory that isn't in our memory
* map.
*/
sig = SIGSEGV;
code = fault == VM_FAULT_BADACCESS ?
SEGV_ACCERR : SEGV_MAPERR;
}
__do_user_fault(tsk, addr, esr, sig, code, regs);
return 0;
no_context:
__do_kernel_fault(mm, addr, esr, regs);
return 0;
} | 430 | True | 1 |
||
CVE-2014-4014 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/10/4', 'name': '[oss-security] 20140610 CVE-2014-4014: Linux kernel user namespace bug', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030394', 'name': '1030394', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/67988', 'name': '67988', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.exploit-db.com/exploits/33824', 'name': '33824', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59220', 'name': '59220', 'refsource': 'SECUNIA', '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']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.'}] | 2018-12-18T14:31Z | 2014-06-23T11:21Z | 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 | Andy Lutomirski | 2014-06-10 12:45:42-07:00 | fs,userns: Change inode_capable to capable_wrt_inode_uidgid
The kernel has no concept of capabilities with respect to inodes; inodes
exist independently of namespaces. For example, inode_capable(inode,
CAP_LINUX_IMMUTABLE) would be nonsense.
This patch changes inode_capable to check for uid and gid mappings and
renames it to capable_wrt_inode_uidgid, which should make it more
obvious what it does.
Fixes CVE-2014-4014.
Cc: Theodore Ts'o <[email protected]>
Cc: Serge Hallyn <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: [email protected]
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 23adbe12ef7d3d4195e80800ab36b37bee28cd03 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | inode_change_ok | inode_change_ok( const struct inode * inode , struct iattr * attr) | ['inode', 'attr'] | int inode_change_ok(const struct inode *inode, struct iattr *attr)
{
unsigned int ia_valid = attr->ia_valid;
/*
* First check size constraints. These can't be overriden using
* ATTR_FORCE.
*/
if (ia_valid & ATTR_SIZE) {
int error = inode_newsize_ok(inode, attr->ia_size);
if (error)
return error;
}
/* If force is set do it anyway. */
if (ia_valid & ATTR_FORCE)
return 0;
/* Make sure a caller can chown. */
if ((ia_valid & ATTR_UID) &&
(!uid_eq(current_fsuid(), inode->i_uid) ||
!uid_eq(attr->ia_uid, inode->i_uid)) &&
!inode_capable(inode, CAP_CHOWN))
return -EPERM;
/* Make sure caller can chgrp. */
if ((ia_valid & ATTR_GID) &&
(!uid_eq(current_fsuid(), inode->i_uid) ||
(!in_group_p(attr->ia_gid) && !gid_eq(attr->ia_gid, inode->i_gid))) &&
!inode_capable(inode, CAP_CHOWN))
return -EPERM;
/* Make sure a caller can chmod. */
if (ia_valid & ATTR_MODE) {
if (!inode_owner_or_capable(inode))
return -EPERM;
/* Also check the setgid bit! */
if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid :
inode->i_gid) &&
!inode_capable(inode, CAP_FSETID))
attr->ia_mode &= ~S_ISGID;
}
/* Check for setting the inode time. */
if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) {
if (!inode_owner_or_capable(inode))
return -EPERM;
}
return 0;
} | 244 | True | 1 |
||
CVE-2014-4014 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/10/4', 'name': '[oss-security] 20140610 CVE-2014-4014: Linux kernel user namespace bug', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030394', 'name': '1030394', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/67988', 'name': '67988', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.exploit-db.com/exploits/33824', 'name': '33824', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59220', 'name': '59220', 'refsource': 'SECUNIA', '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']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.'}] | 2018-12-18T14:31Z | 2014-06-23T11:21Z | 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 | Andy Lutomirski | 2014-06-10 12:45:42-07:00 | fs,userns: Change inode_capable to capable_wrt_inode_uidgid
The kernel has no concept of capabilities with respect to inodes; inodes
exist independently of namespaces. For example, inode_capable(inode,
CAP_LINUX_IMMUTABLE) would be nonsense.
This patch changes inode_capable to check for uid and gid mappings and
renames it to capable_wrt_inode_uidgid, which should make it more
obvious what it does.
Fixes CVE-2014-4014.
Cc: Theodore Ts'o <[email protected]>
Cc: Serge Hallyn <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: [email protected]
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 23adbe12ef7d3d4195e80800ab36b37bee28cd03 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | setattr_copy | setattr_copy( struct inode * inode , const struct iattr * attr) | ['inode', 'attr'] | void setattr_copy(struct inode *inode, const struct iattr *attr)
{
unsigned int ia_valid = attr->ia_valid;
if (ia_valid & ATTR_UID)
inode->i_uid = attr->ia_uid;
if (ia_valid & ATTR_GID)
inode->i_gid = attr->ia_gid;
if (ia_valid & ATTR_ATIME)
inode->i_atime = timespec_trunc(attr->ia_atime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_MTIME)
inode->i_mtime = timespec_trunc(attr->ia_mtime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_CTIME)
inode->i_ctime = timespec_trunc(attr->ia_ctime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_MODE) {
umode_t mode = attr->ia_mode;
if (!in_group_p(inode->i_gid) &&
!inode_capable(inode, CAP_FSETID))
mode &= ~S_ISGID;
inode->i_mode = mode;
}
} | 163 | True | 1 |
||
CVE-2014-4014 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/10/4', 'name': '[oss-security] 20140610 CVE-2014-4014: Linux kernel user namespace bug', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030394', 'name': '1030394', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/67988', 'name': '67988', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.exploit-db.com/exploits/33824', 'name': '33824', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59220', 'name': '59220', 'refsource': 'SECUNIA', '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']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.'}] | 2018-12-18T14:31Z | 2014-06-23T11:21Z | 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 | Andy Lutomirski | 2014-06-10 12:45:42-07:00 | fs,userns: Change inode_capable to capable_wrt_inode_uidgid
The kernel has no concept of capabilities with respect to inodes; inodes
exist independently of namespaces. For example, inode_capable(inode,
CAP_LINUX_IMMUTABLE) would be nonsense.
This patch changes inode_capable to check for uid and gid mappings and
renames it to capable_wrt_inode_uidgid, which should make it more
obvious what it does.
Fixes CVE-2014-4014.
Cc: Theodore Ts'o <[email protected]>
Cc: Serge Hallyn <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: [email protected]
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 23adbe12ef7d3d4195e80800ab36b37bee28cd03 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | inode_owner_or_capable | inode_owner_or_capable( const struct inode * inode) | ['inode'] | bool inode_owner_or_capable(const struct inode *inode)
{
if (uid_eq(current_fsuid(), inode->i_uid))
return true;
if (inode_capable(inode, CAP_FOWNER))
return true;
return false;
} | 41 | True | 1 |
||
CVE-2014-4014 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/10/4', 'name': '[oss-security] 20140610 CVE-2014-4014: Linux kernel user namespace bug', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030394', 'name': '1030394', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/67988', 'name': '67988', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.exploit-db.com/exploits/33824', 'name': '33824', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59220', 'name': '59220', 'refsource': 'SECUNIA', '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']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.'}] | 2018-12-18T14:31Z | 2014-06-23T11:21Z | 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 | Andy Lutomirski | 2014-06-10 12:45:42-07:00 | fs,userns: Change inode_capable to capable_wrt_inode_uidgid
The kernel has no concept of capabilities with respect to inodes; inodes
exist independently of namespaces. For example, inode_capable(inode,
CAP_LINUX_IMMUTABLE) would be nonsense.
This patch changes inode_capable to check for uid and gid mappings and
renames it to capable_wrt_inode_uidgid, which should make it more
obvious what it does.
Fixes CVE-2014-4014.
Cc: Theodore Ts'o <[email protected]>
Cc: Serge Hallyn <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: [email protected]
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 23adbe12ef7d3d4195e80800ab36b37bee28cd03 | 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_sticky | check_sticky( struct inode * dir , struct inode * inode) | ['dir', 'inode'] | static inline int check_sticky(struct inode *dir, struct inode *inode)
{
kuid_t fsuid = current_fsuid();
if (!(dir->i_mode & S_ISVTX))
return 0;
if (uid_eq(inode->i_uid, fsuid))
return 0;
if (uid_eq(dir->i_uid, fsuid))
return 0;
return !inode_capable(inode, CAP_FOWNER);
} | 72 | True | 1 |
||
CVE-2014-4014 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/10/4', 'name': '[oss-security] 20140610 CVE-2014-4014: Linux kernel user namespace bug', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030394', 'name': '1030394', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/67988', 'name': '67988', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.exploit-db.com/exploits/33824', 'name': '33824', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59220', 'name': '59220', 'refsource': 'SECUNIA', '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']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.'}] | 2018-12-18T14:31Z | 2014-06-23T11:21Z | 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 | Andy Lutomirski | 2014-06-10 12:45:42-07:00 | fs,userns: Change inode_capable to capable_wrt_inode_uidgid
The kernel has no concept of capabilities with respect to inodes; inodes
exist independently of namespaces. For example, inode_capable(inode,
CAP_LINUX_IMMUTABLE) would be nonsense.
This patch changes inode_capable to check for uid and gid mappings and
renames it to capable_wrt_inode_uidgid, which should make it more
obvious what it does.
Fixes CVE-2014-4014.
Cc: Theodore Ts'o <[email protected]>
Cc: Serge Hallyn <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: [email protected]
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 23adbe12ef7d3d4195e80800ab36b37bee28cd03 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | generic_permission | generic_permission( struct inode * inode , int mask) | ['inode', 'mask'] | int generic_permission(struct inode *inode, int mask)
{
int ret;
/*
* Do the basic permission checks.
*/
ret = acl_permission_check(inode, mask);
if (ret != -EACCES)
return ret;
if (S_ISDIR(inode->i_mode)) {
/* DACs are overridable for directories */
if (inode_capable(inode, CAP_DAC_OVERRIDE))
return 0;
if (!(mask & MAY_WRITE))
if (inode_capable(inode, CAP_DAC_READ_SEARCH))
return 0;
return -EACCES;
}
/*
* Read/write DACs are always overridable.
* Executable DACs are overridable when there is
* at least one exec bit set.
*/
if (!(mask & MAY_EXEC) || (inode->i_mode & S_IXUGO))
if (inode_capable(inode, CAP_DAC_OVERRIDE))
return 0;
/*
* Searching includes executable on directories, else just read.
*/
mask &= MAY_READ | MAY_WRITE | MAY_EXEC;
if (mask == MAY_READ)
if (inode_capable(inode, CAP_DAC_READ_SEARCH))
return 0;
return -EACCES;
} | 141 | True | 1 |
||
CVE-2014-4014 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/10/4', 'name': '[oss-security] 20140610 CVE-2014-4014: Linux kernel user namespace bug', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030394', 'name': '1030394', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/67988', 'name': '67988', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.exploit-db.com/exploits/33824', 'name': '33824', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59220', 'name': '59220', 'refsource': 'SECUNIA', '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']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.'}] | 2018-12-18T14:31Z | 2014-06-23T11:21Z | 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 | Andy Lutomirski | 2014-06-10 12:45:42-07:00 | fs,userns: Change inode_capable to capable_wrt_inode_uidgid
The kernel has no concept of capabilities with respect to inodes; inodes
exist independently of namespaces. For example, inode_capable(inode,
CAP_LINUX_IMMUTABLE) would be nonsense.
This patch changes inode_capable to check for uid and gid mappings and
renames it to capable_wrt_inode_uidgid, which should make it more
obvious what it does.
Fixes CVE-2014-4014.
Cc: Theodore Ts'o <[email protected]>
Cc: Serge Hallyn <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: [email protected]
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 23adbe12ef7d3d4195e80800ab36b37bee28cd03 | 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_ioctl_setattr | xfs_ioctl_setattr( xfs_inode_t * ip , struct fsxattr * fa , int mask) | ['ip', 'fa', 'mask'] | xfs_ioctl_setattr(
xfs_inode_t *ip,
struct fsxattr *fa,
int mask)
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
unsigned int lock_flags = 0;
struct xfs_dquot *udqp = NULL;
struct xfs_dquot *pdqp = NULL;
struct xfs_dquot *olddquot = NULL;
int code;
trace_xfs_ioctl_setattr(ip);
if (mp->m_flags & XFS_MOUNT_RDONLY)
return XFS_ERROR(EROFS);
if (XFS_FORCED_SHUTDOWN(mp))
return XFS_ERROR(EIO);
/*
* Disallow 32bit project ids when projid32bit feature is not enabled.
*/
if ((mask & FSX_PROJID) && (fa->fsx_projid > (__uint16_t)-1) &&
!xfs_sb_version_hasprojid32bit(&ip->i_mount->m_sb))
return XFS_ERROR(EINVAL);
/*
* If disk quotas is on, we make sure that the dquots do exist on disk,
* before we start any other transactions. Trying to do this later
* is messy. We don't care to take a readlock to look at the ids
* in inode here, because we can't hold it across the trans_reserve.
* If the IDs do change before we take the ilock, we're covered
* because the i_*dquot fields will get updated anyway.
*/
if (XFS_IS_QUOTA_ON(mp) && (mask & FSX_PROJID)) {
code = xfs_qm_vop_dqalloc(ip, ip->i_d.di_uid,
ip->i_d.di_gid, fa->fsx_projid,
XFS_QMOPT_PQUOTA, &udqp, NULL, &pdqp);
if (code)
return code;
}
/*
* For the other attributes, we acquire the inode lock and
* first do an error checking pass.
*/
tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
code = xfs_trans_reserve(tp, &M_RES(mp)->tr_ichange, 0, 0);
if (code)
goto error_return;
lock_flags = XFS_ILOCK_EXCL;
xfs_ilock(ip, lock_flags);
/*
* CAP_FOWNER overrides the following restrictions:
*
* The user ID of the calling process must be equal
* to the file owner ID, except in cases where the
* CAP_FSETID capability is applicable.
*/
if (!inode_owner_or_capable(VFS_I(ip))) {
code = XFS_ERROR(EPERM);
goto error_return;
}
/*
* Do a quota reservation only if projid is actually going to change.
* Only allow changing of projid from init_user_ns since it is a
* non user namespace aware identifier.
*/
if (mask & FSX_PROJID) {
if (current_user_ns() != &init_user_ns) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
if (XFS_IS_QUOTA_RUNNING(mp) &&
XFS_IS_PQUOTA_ON(mp) &&
xfs_get_projid(ip) != fa->fsx_projid) {
ASSERT(tp);
code = xfs_qm_vop_chown_reserve(tp, ip, udqp, NULL,
pdqp, capable(CAP_FOWNER) ?
XFS_QMOPT_FORCE_RES : 0);
if (code) /* out of quota */
goto error_return;
}
}
if (mask & FSX_EXTSIZE) {
/*
* Can't change extent size if any extents are allocated.
*/
if (ip->i_d.di_nextents &&
((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) !=
fa->fsx_extsize)) {
code = XFS_ERROR(EINVAL); /* EFBIG? */
goto error_return;
}
/*
* Extent size must be a multiple of the appropriate block
* size, if set at all. It must also be smaller than the
* maximum extent size supported by the filesystem.
*
* Also, for non-realtime files, limit the extent size hint to
* half the size of the AGs in the filesystem so alignment
* doesn't result in extents larger than an AG.
*/
if (fa->fsx_extsize != 0) {
xfs_extlen_t size;
xfs_fsblock_t extsize_fsb;
extsize_fsb = XFS_B_TO_FSB(mp, fa->fsx_extsize);
if (extsize_fsb > MAXEXTLEN) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
if (XFS_IS_REALTIME_INODE(ip) ||
((mask & FSX_XFLAGS) &&
(fa->fsx_xflags & XFS_XFLAG_REALTIME))) {
size = mp->m_sb.sb_rextsize <<
mp->m_sb.sb_blocklog;
} else {
size = mp->m_sb.sb_blocksize;
if (extsize_fsb > mp->m_sb.sb_agblocks / 2) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
}
if (fa->fsx_extsize % size) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
}
}
if (mask & FSX_XFLAGS) {
/*
* Can't change realtime flag if any extents are allocated.
*/
if ((ip->i_d.di_nextents || ip->i_delayed_blks) &&
(XFS_IS_REALTIME_INODE(ip)) !=
(fa->fsx_xflags & XFS_XFLAG_REALTIME)) {
code = XFS_ERROR(EINVAL); /* EFBIG? */
goto error_return;
}
/*
* If realtime flag is set then must have realtime data.
*/
if ((fa->fsx_xflags & XFS_XFLAG_REALTIME)) {
if ((mp->m_sb.sb_rblocks == 0) ||
(mp->m_sb.sb_rextsize == 0) ||
(ip->i_d.di_extsize % mp->m_sb.sb_rextsize)) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
}
/*
* Can't modify an immutable/append-only file unless
* we have appropriate permission.
*/
if ((ip->i_d.di_flags &
(XFS_DIFLAG_IMMUTABLE|XFS_DIFLAG_APPEND) ||
(fa->fsx_xflags &
(XFS_XFLAG_IMMUTABLE | XFS_XFLAG_APPEND))) &&
!capable(CAP_LINUX_IMMUTABLE)) {
code = XFS_ERROR(EPERM);
goto error_return;
}
}
xfs_trans_ijoin(tp, ip, 0);
/*
* Change file ownership. Must be the owner or privileged.
*/
if (mask & FSX_PROJID) {
/*
* CAP_FSETID overrides the following restrictions:
*
* The set-user-ID and set-group-ID bits of a file will be
* cleared upon successful return from chown()
*/
if ((ip->i_d.di_mode & (S_ISUID|S_ISGID)) &&
!inode_capable(VFS_I(ip), CAP_FSETID))
ip->i_d.di_mode &= ~(S_ISUID|S_ISGID);
/*
* Change the ownerships and register quota modifications
* in the transaction.
*/
if (xfs_get_projid(ip) != fa->fsx_projid) {
if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_PQUOTA_ON(mp)) {
olddquot = xfs_qm_vop_chown(tp, ip,
&ip->i_pdquot, pdqp);
}
xfs_set_projid(ip, fa->fsx_projid);
/*
* We may have to rev the inode as well as
* the superblock version number since projids didn't
* exist before DINODE_VERSION_2 and SB_VERSION_NLINK.
*/
if (ip->i_d.di_version == 1)
xfs_bump_ino_vers2(tp, ip);
}
}
if (mask & FSX_EXTSIZE)
ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog;
if (mask & FSX_XFLAGS) {
xfs_set_diflags(ip, fa->fsx_xflags);
xfs_diflags_to_linux(ip);
}
xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
XFS_STATS_INC(xs_ig_attrchg);
/*
* If this is a synchronous mount, make sure that the
* transaction goes to disk before returning to the user.
* This is slightly sub-optimal in that truncates require
* two sync transactions instead of one for wsync filesystems.
* One for the truncate and one for the timestamps since we
* don't want to change the timestamps unless we're sure the
* truncate worked. Truncates are less than 1% of the laddis
* mix so this probably isn't worth the trouble to optimize.
*/
if (mp->m_flags & XFS_MOUNT_WSYNC)
xfs_trans_set_sync(tp);
code = xfs_trans_commit(tp, 0);
xfs_iunlock(ip, lock_flags);
/*
* Release any dquot(s) the inode had kept before chown.
*/
xfs_qm_dqrele(olddquot);
xfs_qm_dqrele(udqp);
xfs_qm_dqrele(pdqp);
return code;
error_return:
xfs_qm_dqrele(udqp);
xfs_qm_dqrele(pdqp);
xfs_trans_cancel(tp, 0);
if (lock_flags)
xfs_iunlock(ip, lock_flags);
return code;
} | 958 | True | 1 |
||
CVE-2014-4014 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23adbe12ef7d3d4195e80800ab36b37bee28cd03', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1107966', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/10/4', 'name': '[oss-security] 20140610 CVE-2014-4014: Linux kernel user namespace bug', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030394', 'name': '1030394', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/67988', 'name': '67988', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.exploit-db.com/exploits/33824', 'name': '33824', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59220', 'name': '59220', 'refsource': 'SECUNIA', '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']}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.14.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root.'}] | 2018-12-18T14:31Z | 2014-06-23T11:21Z | 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 | Andy Lutomirski | 2014-06-10 12:45:42-07:00 | fs,userns: Change inode_capable to capable_wrt_inode_uidgid
The kernel has no concept of capabilities with respect to inodes; inodes
exist independently of namespaces. For example, inode_capable(inode,
CAP_LINUX_IMMUTABLE) would be nonsense.
This patch changes inode_capable to check for uid and gid mappings and
renames it to capable_wrt_inode_uidgid, which should make it more
obvious what it does.
Fixes CVE-2014-4014.
Cc: Theodore Ts'o <[email protected]>
Cc: Serge Hallyn <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: [email protected]
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]> | 23adbe12ef7d3d4195e80800ab36b37bee28cd03 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | inode_capable | inode_capable( const struct inode * inode , int cap) | ['inode', 'cap'] | bool inode_capable(const struct inode *inode, int cap)
{
struct user_namespace *ns = current_user_ns();
return ns_capable(ns, cap) && kuid_has_mapping(ns, inode->i_uid);
} | 39 | True | 1 |
||
CVE-2014-9914 | 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/9709674e68646cee5a24e3000b3558d25412203a', 'name': 'https://github.com/torvalds/linux/commit/9709674e68646cee5a24e3000b3558d25412203a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', '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': ['Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9709674e68646cee5a24e3000b3558d25412203a', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9709674e68646cee5a24e3000b3558d25412203a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/96100', 'name': '96100', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1037798', 'name': '1037798', 'refsource': 'SECTRACK', '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': '3.15.1', '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': 'Race condition in the ip4_datagram_release_cb function in net/ipv4/datagram.c in the Linux kernel before 3.15.2 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect expectations about locking during multithreaded access to internal data structures for IPv4 UDP sockets.'}] | 2017-07-25T01:29Z | 2017-02-07T07:59Z | 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 | Eric Dumazet | 2014-06-10 06:43:01-07:00 | ipv4: fix a race in ip4_datagram_release_cb()
Alexey gave a AddressSanitizer[1] report that finally gave a good hint
at where was the origin of various problems already reported by Dormando
in the past [2]
Problem comes from the fact that UDP can have a lockless TX path, and
concurrent threads can manipulate sk_dst_cache, while another thread,
is holding socket lock and calls __sk_dst_set() in
ip4_datagram_release_cb() (this was added in linux-3.8)
It seems that all we need to do is to use sk_dst_check() and
sk_dst_set() so that all the writers hold same spinlock
(sk->sk_dst_lock) to prevent corruptions.
TCP stack do not need this protection, as all sk_dst_cache writers hold
the socket lock.
[1]
https://code.google.com/p/address-sanitizer/wiki/AddressSanitizerForKernel
AddressSanitizer: heap-use-after-free in ipv4_dst_check
Read of size 2 by thread T15453:
[<ffffffff817daa3a>] ipv4_dst_check+0x1a/0x90 ./net/ipv4/route.c:1116
[<ffffffff8175b789>] __sk_dst_check+0x89/0xe0 ./net/core/sock.c:531
[<ffffffff81830a36>] ip4_datagram_release_cb+0x46/0x390 ??:0
[<ffffffff8175eaea>] release_sock+0x17a/0x230 ./net/core/sock.c:2413
[<ffffffff81830882>] ip4_datagram_connect+0x462/0x5d0 ??:0
[<ffffffff81846d06>] inet_dgram_connect+0x76/0xd0 ./net/ipv4/af_inet.c:534
[<ffffffff817580ac>] SYSC_connect+0x15c/0x1c0 ./net/socket.c:1701
[<ffffffff817596ce>] SyS_connect+0xe/0x10 ./net/socket.c:1682
[<ffffffff818b0a29>] system_call_fastpath+0x16/0x1b
./arch/x86/kernel/entry_64.S:629
Freed by thread T15455:
[<ffffffff8178d9b8>] dst_destroy+0xa8/0x160 ./net/core/dst.c:251
[<ffffffff8178de25>] dst_release+0x45/0x80 ./net/core/dst.c:280
[<ffffffff818304c1>] ip4_datagram_connect+0xa1/0x5d0 ??:0
[<ffffffff81846d06>] inet_dgram_connect+0x76/0xd0 ./net/ipv4/af_inet.c:534
[<ffffffff817580ac>] SYSC_connect+0x15c/0x1c0 ./net/socket.c:1701
[<ffffffff817596ce>] SyS_connect+0xe/0x10 ./net/socket.c:1682
[<ffffffff818b0a29>] system_call_fastpath+0x16/0x1b
./arch/x86/kernel/entry_64.S:629
Allocated by thread T15453:
[<ffffffff8178d291>] dst_alloc+0x81/0x2b0 ./net/core/dst.c:171
[<ffffffff817db3b7>] rt_dst_alloc+0x47/0x50 ./net/ipv4/route.c:1406
[< inlined >] __ip_route_output_key+0x3e8/0xf70
__mkroute_output ./net/ipv4/route.c:1939
[<ffffffff817dde08>] __ip_route_output_key+0x3e8/0xf70 ./net/ipv4/route.c:2161
[<ffffffff817deb34>] ip_route_output_flow+0x14/0x30 ./net/ipv4/route.c:2249
[<ffffffff81830737>] ip4_datagram_connect+0x317/0x5d0 ??:0
[<ffffffff81846d06>] inet_dgram_connect+0x76/0xd0 ./net/ipv4/af_inet.c:534
[<ffffffff817580ac>] SYSC_connect+0x15c/0x1c0 ./net/socket.c:1701
[<ffffffff817596ce>] SyS_connect+0xe/0x10 ./net/socket.c:1682
[<ffffffff818b0a29>] system_call_fastpath+0x16/0x1b
./arch/x86/kernel/entry_64.S:629
[2]
<4>[196727.311203] general protection fault: 0000 [#1] SMP
<4>[196727.311224] Modules linked in: xt_TEE xt_dscp xt_DSCP macvlan bridge coretemp crc32_pclmul ghash_clmulni_intel gpio_ich microcode ipmi_watchdog ipmi_devintf sb_edac edac_core lpc_ich mfd_core tpm_tis tpm tpm_bios ipmi_si ipmi_msghandler isci igb libsas i2c_algo_bit ixgbe ptp pps_core mdio
<4>[196727.311333] CPU: 17 PID: 0 Comm: swapper/17 Not tainted 3.10.26 #1
<4>[196727.311344] Hardware name: Supermicro X9DRi-LN4+/X9DR3-LN4+/X9DRi-LN4+/X9DR3-LN4+, BIOS 3.0 07/05/2013
<4>[196727.311364] task: ffff885e6f069700 ti: ffff885e6f072000 task.ti: ffff885e6f072000
<4>[196727.311377] RIP: 0010:[<ffffffff815f8c7f>] [<ffffffff815f8c7f>] ipv4_dst_destroy+0x4f/0x80
<4>[196727.311399] RSP: 0018:ffff885effd23a70 EFLAGS: 00010282
<4>[196727.311409] RAX: dead000000200200 RBX: ffff8854c398ecc0 RCX: 0000000000000040
<4>[196727.311423] RDX: dead000000100100 RSI: dead000000100100 RDI: dead000000200200
<4>[196727.311437] RBP: ffff885effd23a80 R08: ffffffff815fd9e0 R09: ffff885d5a590800
<4>[196727.311451] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
<4>[196727.311464] R13: ffffffff81c8c280 R14: 0000000000000000 R15: ffff880e85ee16ce
<4>[196727.311510] FS: 0000000000000000(0000) GS:ffff885effd20000(0000) knlGS:0000000000000000
<4>[196727.311554] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[196727.311581] CR2: 00007a46751eb000 CR3: 0000005e65688000 CR4: 00000000000407e0
<4>[196727.311625] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>[196727.311669] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
<4>[196727.311713] Stack:
<4>[196727.311733] ffff8854c398ecc0 ffff8854c398ecc0 ffff885effd23ab0 ffffffff815b7f42
<4>[196727.311784] ffff88be6595bc00 ffff8854c398ecc0 0000000000000000 ffff8854c398ecc0
<4>[196727.311834] ffff885effd23ad0 ffffffff815b86c6 ffff885d5a590800 ffff8816827821c0
<4>[196727.311885] Call Trace:
<4>[196727.311907] <IRQ>
<4>[196727.311912] [<ffffffff815b7f42>] dst_destroy+0x32/0xe0
<4>[196727.311959] [<ffffffff815b86c6>] dst_release+0x56/0x80
<4>[196727.311986] [<ffffffff81620bd5>] tcp_v4_do_rcv+0x2a5/0x4a0
<4>[196727.312013] [<ffffffff81622b5a>] tcp_v4_rcv+0x7da/0x820
<4>[196727.312041] [<ffffffff815fd9e0>] ? ip_rcv_finish+0x360/0x360
<4>[196727.312070] [<ffffffff815de02d>] ? nf_hook_slow+0x7d/0x150
<4>[196727.312097] [<ffffffff815fd9e0>] ? ip_rcv_finish+0x360/0x360
<4>[196727.312125] [<ffffffff815fda92>] ip_local_deliver_finish+0xb2/0x230
<4>[196727.312154] [<ffffffff815fdd9a>] ip_local_deliver+0x4a/0x90
<4>[196727.312183] [<ffffffff815fd799>] ip_rcv_finish+0x119/0x360
<4>[196727.312212] [<ffffffff815fe00b>] ip_rcv+0x22b/0x340
<4>[196727.312242] [<ffffffffa0339680>] ? macvlan_broadcast+0x160/0x160 [macvlan]
<4>[196727.312275] [<ffffffff815b0c62>] __netif_receive_skb_core+0x512/0x640
<4>[196727.312308] [<ffffffff811427fb>] ? kmem_cache_alloc+0x13b/0x150
<4>[196727.312338] [<ffffffff815b0db1>] __netif_receive_skb+0x21/0x70
<4>[196727.312368] [<ffffffff815b0fa1>] netif_receive_skb+0x31/0xa0
<4>[196727.312397] [<ffffffff815b1ae8>] napi_gro_receive+0xe8/0x140
<4>[196727.312433] [<ffffffffa00274f1>] ixgbe_poll+0x551/0x11f0 [ixgbe]
<4>[196727.312463] [<ffffffff815fe00b>] ? ip_rcv+0x22b/0x340
<4>[196727.312491] [<ffffffff815b1691>] net_rx_action+0x111/0x210
<4>[196727.312521] [<ffffffff815b0db1>] ? __netif_receive_skb+0x21/0x70
<4>[196727.312552] [<ffffffff810519d0>] __do_softirq+0xd0/0x270
<4>[196727.312583] [<ffffffff816cef3c>] call_softirq+0x1c/0x30
<4>[196727.312613] [<ffffffff81004205>] do_softirq+0x55/0x90
<4>[196727.312640] [<ffffffff81051c85>] irq_exit+0x55/0x60
<4>[196727.312668] [<ffffffff816cf5c3>] do_IRQ+0x63/0xe0
<4>[196727.312696] [<ffffffff816c5aaa>] common_interrupt+0x6a/0x6a
<4>[196727.312722] <EOI>
<1>[196727.313071] RIP [<ffffffff815f8c7f>] ipv4_dst_destroy+0x4f/0x80
<4>[196727.313100] RSP <ffff885effd23a70>
<4>[196727.313377] ---[ end trace 64b3f14fae0f2e29 ]---
<0>[196727.380908] Kernel panic - not syncing: Fatal exception in interrupt
Reported-by: Alexey Preobrazhensky <[email protected]>
Reported-by: dormando <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Fixes: 8141ed9fcedb2 ("ipv4: Add a socket release callback for datagram sockets")
Cc: Steffen Klassert <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 9709674e68646cee5a24e3000b3558d25412203a | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ip4_datagram_release_cb | ip4_datagram_release_cb( struct sock * sk) | ['sk'] | void ip4_datagram_release_cb(struct sock *sk)
{
const struct inet_sock *inet = inet_sk(sk);
const struct ip_options_rcu *inet_opt;
__be32 daddr = inet->inet_daddr;
struct flowi4 fl4;
struct rtable *rt;
if (! __sk_dst_get(sk) || __sk_dst_check(sk, 0))
return;
rcu_read_lock();
inet_opt = rcu_dereference(inet->inet_opt);
if (inet_opt && inet_opt->opt.srr)
daddr = inet_opt->opt.faddr;
rt = ip_route_output_ports(sock_net(sk), &fl4, sk, daddr,
inet->inet_saddr, inet->inet_dport,
inet->inet_sport, sk->sk_protocol,
RT_CONN_FLAGS(sk), sk->sk_bound_dev_if);
if (!IS_ERR(rt))
__sk_dst_set(sk, &rt->dst);
rcu_read_unlock();
} | 154 | True | 1 |
|
CVE-2014-9914 | 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/9709674e68646cee5a24e3000b3558d25412203a', 'name': 'https://github.com/torvalds/linux/commit/9709674e68646cee5a24e3000b3558d25412203a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', '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': ['Third Party Advisory']}, {'url': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9709674e68646cee5a24e3000b3558d25412203a', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9709674e68646cee5a24e3000b3558d25412203a', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/96100', 'name': '96100', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1037798', 'name': '1037798', 'refsource': 'SECTRACK', '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': '3.15.1', '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': 'Race condition in the ip4_datagram_release_cb function in net/ipv4/datagram.c in the Linux kernel before 3.15.2 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect expectations about locking during multithreaded access to internal data structures for IPv4 UDP sockets.'}] | 2017-07-25T01:29Z | 2017-02-07T07:59Z | 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 | Eric Dumazet | 2014-06-10 06:43:01-07:00 | ipv4: fix a race in ip4_datagram_release_cb()
Alexey gave a AddressSanitizer[1] report that finally gave a good hint
at where was the origin of various problems already reported by Dormando
in the past [2]
Problem comes from the fact that UDP can have a lockless TX path, and
concurrent threads can manipulate sk_dst_cache, while another thread,
is holding socket lock and calls __sk_dst_set() in
ip4_datagram_release_cb() (this was added in linux-3.8)
It seems that all we need to do is to use sk_dst_check() and
sk_dst_set() so that all the writers hold same spinlock
(sk->sk_dst_lock) to prevent corruptions.
TCP stack do not need this protection, as all sk_dst_cache writers hold
the socket lock.
[1]
https://code.google.com/p/address-sanitizer/wiki/AddressSanitizerForKernel
AddressSanitizer: heap-use-after-free in ipv4_dst_check
Read of size 2 by thread T15453:
[<ffffffff817daa3a>] ipv4_dst_check+0x1a/0x90 ./net/ipv4/route.c:1116
[<ffffffff8175b789>] __sk_dst_check+0x89/0xe0 ./net/core/sock.c:531
[<ffffffff81830a36>] ip4_datagram_release_cb+0x46/0x390 ??:0
[<ffffffff8175eaea>] release_sock+0x17a/0x230 ./net/core/sock.c:2413
[<ffffffff81830882>] ip4_datagram_connect+0x462/0x5d0 ??:0
[<ffffffff81846d06>] inet_dgram_connect+0x76/0xd0 ./net/ipv4/af_inet.c:534
[<ffffffff817580ac>] SYSC_connect+0x15c/0x1c0 ./net/socket.c:1701
[<ffffffff817596ce>] SyS_connect+0xe/0x10 ./net/socket.c:1682
[<ffffffff818b0a29>] system_call_fastpath+0x16/0x1b
./arch/x86/kernel/entry_64.S:629
Freed by thread T15455:
[<ffffffff8178d9b8>] dst_destroy+0xa8/0x160 ./net/core/dst.c:251
[<ffffffff8178de25>] dst_release+0x45/0x80 ./net/core/dst.c:280
[<ffffffff818304c1>] ip4_datagram_connect+0xa1/0x5d0 ??:0
[<ffffffff81846d06>] inet_dgram_connect+0x76/0xd0 ./net/ipv4/af_inet.c:534
[<ffffffff817580ac>] SYSC_connect+0x15c/0x1c0 ./net/socket.c:1701
[<ffffffff817596ce>] SyS_connect+0xe/0x10 ./net/socket.c:1682
[<ffffffff818b0a29>] system_call_fastpath+0x16/0x1b
./arch/x86/kernel/entry_64.S:629
Allocated by thread T15453:
[<ffffffff8178d291>] dst_alloc+0x81/0x2b0 ./net/core/dst.c:171
[<ffffffff817db3b7>] rt_dst_alloc+0x47/0x50 ./net/ipv4/route.c:1406
[< inlined >] __ip_route_output_key+0x3e8/0xf70
__mkroute_output ./net/ipv4/route.c:1939
[<ffffffff817dde08>] __ip_route_output_key+0x3e8/0xf70 ./net/ipv4/route.c:2161
[<ffffffff817deb34>] ip_route_output_flow+0x14/0x30 ./net/ipv4/route.c:2249
[<ffffffff81830737>] ip4_datagram_connect+0x317/0x5d0 ??:0
[<ffffffff81846d06>] inet_dgram_connect+0x76/0xd0 ./net/ipv4/af_inet.c:534
[<ffffffff817580ac>] SYSC_connect+0x15c/0x1c0 ./net/socket.c:1701
[<ffffffff817596ce>] SyS_connect+0xe/0x10 ./net/socket.c:1682
[<ffffffff818b0a29>] system_call_fastpath+0x16/0x1b
./arch/x86/kernel/entry_64.S:629
[2]
<4>[196727.311203] general protection fault: 0000 [#1] SMP
<4>[196727.311224] Modules linked in: xt_TEE xt_dscp xt_DSCP macvlan bridge coretemp crc32_pclmul ghash_clmulni_intel gpio_ich microcode ipmi_watchdog ipmi_devintf sb_edac edac_core lpc_ich mfd_core tpm_tis tpm tpm_bios ipmi_si ipmi_msghandler isci igb libsas i2c_algo_bit ixgbe ptp pps_core mdio
<4>[196727.311333] CPU: 17 PID: 0 Comm: swapper/17 Not tainted 3.10.26 #1
<4>[196727.311344] Hardware name: Supermicro X9DRi-LN4+/X9DR3-LN4+/X9DRi-LN4+/X9DR3-LN4+, BIOS 3.0 07/05/2013
<4>[196727.311364] task: ffff885e6f069700 ti: ffff885e6f072000 task.ti: ffff885e6f072000
<4>[196727.311377] RIP: 0010:[<ffffffff815f8c7f>] [<ffffffff815f8c7f>] ipv4_dst_destroy+0x4f/0x80
<4>[196727.311399] RSP: 0018:ffff885effd23a70 EFLAGS: 00010282
<4>[196727.311409] RAX: dead000000200200 RBX: ffff8854c398ecc0 RCX: 0000000000000040
<4>[196727.311423] RDX: dead000000100100 RSI: dead000000100100 RDI: dead000000200200
<4>[196727.311437] RBP: ffff885effd23a80 R08: ffffffff815fd9e0 R09: ffff885d5a590800
<4>[196727.311451] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
<4>[196727.311464] R13: ffffffff81c8c280 R14: 0000000000000000 R15: ffff880e85ee16ce
<4>[196727.311510] FS: 0000000000000000(0000) GS:ffff885effd20000(0000) knlGS:0000000000000000
<4>[196727.311554] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[196727.311581] CR2: 00007a46751eb000 CR3: 0000005e65688000 CR4: 00000000000407e0
<4>[196727.311625] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>[196727.311669] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
<4>[196727.311713] Stack:
<4>[196727.311733] ffff8854c398ecc0 ffff8854c398ecc0 ffff885effd23ab0 ffffffff815b7f42
<4>[196727.311784] ffff88be6595bc00 ffff8854c398ecc0 0000000000000000 ffff8854c398ecc0
<4>[196727.311834] ffff885effd23ad0 ffffffff815b86c6 ffff885d5a590800 ffff8816827821c0
<4>[196727.311885] Call Trace:
<4>[196727.311907] <IRQ>
<4>[196727.311912] [<ffffffff815b7f42>] dst_destroy+0x32/0xe0
<4>[196727.311959] [<ffffffff815b86c6>] dst_release+0x56/0x80
<4>[196727.311986] [<ffffffff81620bd5>] tcp_v4_do_rcv+0x2a5/0x4a0
<4>[196727.312013] [<ffffffff81622b5a>] tcp_v4_rcv+0x7da/0x820
<4>[196727.312041] [<ffffffff815fd9e0>] ? ip_rcv_finish+0x360/0x360
<4>[196727.312070] [<ffffffff815de02d>] ? nf_hook_slow+0x7d/0x150
<4>[196727.312097] [<ffffffff815fd9e0>] ? ip_rcv_finish+0x360/0x360
<4>[196727.312125] [<ffffffff815fda92>] ip_local_deliver_finish+0xb2/0x230
<4>[196727.312154] [<ffffffff815fdd9a>] ip_local_deliver+0x4a/0x90
<4>[196727.312183] [<ffffffff815fd799>] ip_rcv_finish+0x119/0x360
<4>[196727.312212] [<ffffffff815fe00b>] ip_rcv+0x22b/0x340
<4>[196727.312242] [<ffffffffa0339680>] ? macvlan_broadcast+0x160/0x160 [macvlan]
<4>[196727.312275] [<ffffffff815b0c62>] __netif_receive_skb_core+0x512/0x640
<4>[196727.312308] [<ffffffff811427fb>] ? kmem_cache_alloc+0x13b/0x150
<4>[196727.312338] [<ffffffff815b0db1>] __netif_receive_skb+0x21/0x70
<4>[196727.312368] [<ffffffff815b0fa1>] netif_receive_skb+0x31/0xa0
<4>[196727.312397] [<ffffffff815b1ae8>] napi_gro_receive+0xe8/0x140
<4>[196727.312433] [<ffffffffa00274f1>] ixgbe_poll+0x551/0x11f0 [ixgbe]
<4>[196727.312463] [<ffffffff815fe00b>] ? ip_rcv+0x22b/0x340
<4>[196727.312491] [<ffffffff815b1691>] net_rx_action+0x111/0x210
<4>[196727.312521] [<ffffffff815b0db1>] ? __netif_receive_skb+0x21/0x70
<4>[196727.312552] [<ffffffff810519d0>] __do_softirq+0xd0/0x270
<4>[196727.312583] [<ffffffff816cef3c>] call_softirq+0x1c/0x30
<4>[196727.312613] [<ffffffff81004205>] do_softirq+0x55/0x90
<4>[196727.312640] [<ffffffff81051c85>] irq_exit+0x55/0x60
<4>[196727.312668] [<ffffffff816cf5c3>] do_IRQ+0x63/0xe0
<4>[196727.312696] [<ffffffff816c5aaa>] common_interrupt+0x6a/0x6a
<4>[196727.312722] <EOI>
<1>[196727.313071] RIP [<ffffffff815f8c7f>] ipv4_dst_destroy+0x4f/0x80
<4>[196727.313100] RSP <ffff885effd23a70>
<4>[196727.313377] ---[ end trace 64b3f14fae0f2e29 ]---
<0>[196727.380908] Kernel panic - not syncing: Fatal exception in interrupt
Reported-by: Alexey Preobrazhensky <[email protected]>
Reported-by: dormando <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Fixes: 8141ed9fcedb2 ("ipv4: Add a socket release callback for datagram sockets")
Cc: Steffen Klassert <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | 9709674e68646cee5a24e3000b3558d25412203a | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ip4_datagram_release_cb | ip4_datagram_release_cb( struct sock * sk) | ['sk'] | void ip4_datagram_release_cb(struct sock *sk)
{
const struct inet_sock *inet = inet_sk(sk);
const struct ip_options_rcu *inet_opt;
__be32 daddr = inet->inet_daddr;
struct flowi4 fl4;
struct rtable *rt;
if (! __sk_dst_get(sk) || __sk_dst_check(sk, 0))
return;
rcu_read_lock();
inet_opt = rcu_dereference(inet->inet_opt);
if (inet_opt && inet_opt->opt.srr)
daddr = inet_opt->opt.faddr;
rt = ip_route_output_ports(sock_net(sk), &fl4, sk, daddr,
inet->inet_saddr, inet->inet_dport,
inet->inet_sport, sk->sk_protocol,
RT_CONN_FLAGS(sk), sk->sk_bound_dev_if);
if (!IS_ERR(rt))
__sk_dst_set(sk, &rt->dst);
rcu_read_unlock();
} | 154 | True | 1 |
|
CVE-2014-7822 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8d0207652cbe27d1f962050737848e5ad4671958', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8d0207652cbe27d1f962050737848e5ad4671958', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1163792', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1163792', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/8d0207652cbe27d1f962050737848e5ad4671958', 'name': 'https://github.com/torvalds/linux/commit/8d0207652cbe27d1f962050737848e5ad4671958', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0164.html', 'name': 'RHSA-2015:0164', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0674.html', 'name': 'RHSA-2015:0674', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.debian.org/security/2015/dsa-3170', 'name': 'DSA-3170', 'refsource': 'DEBIAN', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0694.html', 'name': 'RHSA-2015:0694', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.html', 'name': 'SUSE-SU-2015:0529', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2543-1', 'name': 'USN-2543-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2541-1', 'name': 'USN-2541-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2544-1', 'name': 'USN-2544-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2542-1', 'name': 'USN-2542-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'https://www.exploit-db.com/exploits/36743/', 'name': '36743', 'refsource': 'EXPLOIT-DB', 'tags': []}, {'url': 'http://www.osvdb.org/117810', 'name': '117810', 'refsource': 'OSVDB', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/72347', 'name': '72347', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html', 'name': 'SUSE-SU-2015:0736', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'name': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html', 'name': 'SUSE-SU-2015:1489', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html', 'name': 'SUSE-SU-2015:1488', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html', 'name': 'openSUSE-SU-2015:0714', 'refsource': 'SUSE', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-264'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.8', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The implementation of certain splice_write file operations in the Linux kernel before 3.16 does not enforce a restriction on the maximum size of a single file, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted splice system call, as demonstrated by use of a file descriptor associated with an ext4 filesystem.'}] | 2017-01-03T02:59Z | 2015-03-16T10:59Z | 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 | Al Viro | 2014-04-05 04:27:08-04:00 | ->splice_write() via ->write_iter()
iter_file_splice_write() - a ->splice_write() instance that gathers the
pipe buffers, builds a bio_vec-based iov_iter covering those and feeds
it to ->write_iter(). A bunch of simple cases coverted to that...
[AV: fixed the braino spotted by Cyrill]
Signed-off-by: Al Viro <[email protected]> | 8d0207652cbe27d1f962050737848e5ad4671958 | 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_file_splice_write | xfs_file_splice_write( struct pipe_inode_info * pipe , struct file * outfilp , loff_t * ppos , size_t count , unsigned int flags) | ['pipe', 'outfilp', 'ppos', 'count', 'flags'] | xfs_file_splice_write(
struct pipe_inode_info *pipe,
struct file *outfilp,
loff_t *ppos,
size_t count,
unsigned int flags)
{
struct inode *inode = outfilp->f_mapping->host;
struct xfs_inode *ip = XFS_I(inode);
int ioflags = 0;
ssize_t ret;
XFS_STATS_INC(xs_write_calls);
if (outfilp->f_mode & FMODE_NOCMTIME)
ioflags |= IO_INVIS;
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return -EIO;
xfs_ilock(ip, XFS_IOLOCK_EXCL);
trace_xfs_file_splice_write(ip, count, *ppos, ioflags);
ret = generic_file_splice_write(pipe, outfilp, ppos, count, flags);
if (ret > 0)
XFS_STATS_ADD(xs_write_bytes, ret);
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
return ret;
} | 141 | True | 1 |
||
CVE-2014-4667 | False | False | False | False | AV:N/AC:L/Au:N/C:N/I:N/A:P | NETWORK | LOW | NONE | NONE | NONE | PARTIAL | 5.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113967', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113967', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/d3217b15a19a4779c39b212358a5c71d725822ee', 'name': 'https://github.com/torvalds/linux/commit/d3217b15a19a4779c39b212358a5c71d725822ee', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d3217b15a19a4779c39b212358a5c71d725822ee', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d3217b15a19a4779c39b212358a5c71d725822ee', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/27/11', 'name': '[oss-security] 20140627 Re: CVE request -- Linux kernel: sctp: sk_ack_backlog wrap-around problem', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/68224', 'name': '68224', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2992', 'name': 'DSA-2992', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60596', 'name': '60596', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59790', 'name': '59790', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3069.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3069.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3068.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3068.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'NVD-CWE-noinfo'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The sctp_association_free function in net/sctp/associola.c in the Linux kernel before 3.15.2 does not properly manage a certain backlog value, which allows remote attackers to cause a denial of service (socket outage) via a crafted SCTP packet.'}] | 2020-08-14T18:02Z | 2014-07-03T04:22Z | Insufficient Information | There is insufficient information about the issue to classify it; details are unkown or unspecified. | Insufficient Information | https://nvd.nist.gov/vuln/categories | 0 | Xufeng Zhang | 2014-06-12 10:53:36+08:00 | sctp: Fix sk_ack_backlog wrap-around problem
Consider the scenario:
For a TCP-style socket, while processing the COOKIE_ECHO chunk in
sctp_sf_do_5_1D_ce(), after it has passed a series of sanity check,
a new association would be created in sctp_unpack_cookie(), but afterwards,
some processing maybe failed, and sctp_association_free() will be called to
free the previously allocated association, in sctp_association_free(),
sk_ack_backlog value is decremented for this socket, since the initial
value for sk_ack_backlog is 0, after the decrement, it will be 65535,
a wrap-around problem happens, and if we want to establish new associations
afterward in the same socket, ABORT would be triggered since sctp deem the
accept queue as full.
Fix this issue by only decrementing sk_ack_backlog for associations in
the endpoint's list.
Fix-suggested-by: Neil Horman <[email protected]>
Signed-off-by: Xufeng Zhang <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Acked-by: Vlad Yasevich <[email protected]>
Signed-off-by: David S. Miller <[email protected]> | d3217b15a19a4779c39b212358a5c71d725822ee | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | sctp_association_free | sctp_association_free( struct sctp_association * asoc) | ['asoc'] | void sctp_association_free(struct sctp_association *asoc)
{
struct sock *sk = asoc->base.sk;
struct sctp_transport *transport;
struct list_head *pos, *temp;
int i;
/* Only real associations count against the endpoint, so
* don't bother for if this is a temporary association.
*/
if (!asoc->temp) {
list_del(&asoc->asocs);
/* Decrement the backlog value for a TCP-style listening
* socket.
*/
if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING))
sk->sk_ack_backlog--;
}
/* Mark as dead, so other users can know this structure is
* going away.
*/
asoc->base.dead = true;
/* Dispose of any data lying around in the outqueue. */
sctp_outq_free(&asoc->outqueue);
/* Dispose of any pending messages for the upper layer. */
sctp_ulpq_free(&asoc->ulpq);
/* Dispose of any pending chunks on the inqueue. */
sctp_inq_free(&asoc->base.inqueue);
sctp_tsnmap_free(&asoc->peer.tsn_map);
/* Free ssnmap storage. */
sctp_ssnmap_free(asoc->ssnmap);
/* Clean up the bound address list. */
sctp_bind_addr_free(&asoc->base.bind_addr);
/* Do we need to go through all of our timers and
* delete them? To be safe we will try to delete all, but we
* should be able to go through and make a guess based
* on our state.
*/
for (i = SCTP_EVENT_TIMEOUT_NONE; i < SCTP_NUM_TIMEOUT_TYPES; ++i) {
if (del_timer(&asoc->timers[i]))
sctp_association_put(asoc);
}
/* Free peer's cached cookie. */
kfree(asoc->peer.cookie);
kfree(asoc->peer.peer_random);
kfree(asoc->peer.peer_chunks);
kfree(asoc->peer.peer_hmacs);
/* Release the transport structures. */
list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {
transport = list_entry(pos, struct sctp_transport, transports);
list_del_rcu(pos);
sctp_transport_free(transport);
}
asoc->peer.transport_count = 0;
sctp_asconf_queue_teardown(asoc);
/* Free pending address space being deleted */
if (asoc->asconf_addr_del_pending != NULL)
kfree(asoc->asconf_addr_del_pending);
/* AUTH - Free the endpoint shared keys */
sctp_auth_destroy_keys(&asoc->endpoint_shared_keys);
/* AUTH - Free the association shared key */
sctp_auth_key_put(asoc->asoc_shared_key);
sctp_association_put(asoc);
} | 289 | True | 1 |
|
CVE-2014-4652 | False | False | False | False | AV:L/AC:M/Au:N/C:P/I:N/A:N | LOCAL | MEDIUM | NONE | PARTIAL | NONE | NONE | 1.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=07f4d9d74a04aa7c72c5dae0ef97565f28f17b92', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=07f4d9d74a04aa7c72c5dae0ef97565f28f17b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/6', 'name': '[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/07f4d9d74a04aa7c72c5dae0ef97565f28f17b92', 'name': 'https://github.com/torvalds/linux/commit/07f4d9d74a04aa7c72c5dae0ef97565f28f17b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113406', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113406', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59434', 'name': '59434', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1083.html', 'name': 'RHSA-2014:1083', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1272.html', 'name': 'RHSA-2015:1272', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60545', 'name': '60545', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/94412', 'name': 'linux-kernel-cve20144652-info-disc(94412)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the tlv handler functionality in the snd_ctl_elem_user_tlv function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 allows local users to obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.'}] | 2020-08-14T17:53Z | 2014-07-03T04:22Z | 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 | Lars-Peter Clausen | 2014-06-18 13:32:31+02:00 | ALSA: control: Protect user controls against concurrent access
The user-control put and get handlers as well as the tlv do not protect against
concurrent access from multiple threads. Since the state of the control is not
updated atomically it is possible that either two write operations or a write
and a read operation race against each other. Both can lead to arbitrary memory
disclosure. This patch introduces a new lock that protects user-controls from
concurrent access. Since applications typically access controls sequentially
than in parallel a single lock per card should be fine.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | 07f4d9d74a04aa7c72c5dae0ef97565f28f17b92 | 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_ctl_elem_user_put | snd_ctl_elem_user_put( struct snd_kcontrol * kcontrol , struct snd_ctl_elem_value * ucontrol) | ['kcontrol', 'ucontrol'] | static int snd_ctl_elem_user_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int change;
struct user_element *ue = kcontrol->private_data;
change = memcmp(&ucontrol->value, ue->elem_data, ue->elem_data_size) != 0;
if (change)
memcpy(ue->elem_data, &ucontrol->value, ue->elem_data_size);
return change;
} | 69 | True | 1 |
|
CVE-2014-4652 | False | False | False | False | AV:L/AC:M/Au:N/C:P/I:N/A:N | LOCAL | MEDIUM | NONE | PARTIAL | NONE | NONE | 1.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=07f4d9d74a04aa7c72c5dae0ef97565f28f17b92', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=07f4d9d74a04aa7c72c5dae0ef97565f28f17b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/6', 'name': '[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/07f4d9d74a04aa7c72c5dae0ef97565f28f17b92', 'name': 'https://github.com/torvalds/linux/commit/07f4d9d74a04aa7c72c5dae0ef97565f28f17b92', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113406', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113406', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59434', 'name': '59434', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1083.html', 'name': 'RHSA-2014:1083', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1272.html', 'name': 'RHSA-2015:1272', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60545', 'name': '60545', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/94412', 'name': 'linux-kernel-cve20144652-info-disc(94412)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-362'}]}] | LOW | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Race condition in the tlv handler functionality in the snd_ctl_elem_user_tlv function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 allows local users to obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.'}] | 2020-08-14T17:53Z | 2014-07-03T04:22Z | 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 | Lars-Peter Clausen | 2014-06-18 13:32:31+02:00 | ALSA: control: Protect user controls against concurrent access
The user-control put and get handlers as well as the tlv do not protect against
concurrent access from multiple threads. Since the state of the control is not
updated atomically it is possible that either two write operations or a write
and a read operation race against each other. Both can lead to arbitrary memory
disclosure. This patch introduces a new lock that protects user-controls from
concurrent access. Since applications typically access controls sequentially
than in parallel a single lock per card should be fine.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | 07f4d9d74a04aa7c72c5dae0ef97565f28f17b92 | 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_ctl_elem_user_tlv | snd_ctl_elem_user_tlv( struct snd_kcontrol * kcontrol , int op_flag , unsigned int size , unsigned int __user * tlv) | ['kcontrol', 'op_flag', 'size', 'tlv'] | static int snd_ctl_elem_user_tlv(struct snd_kcontrol *kcontrol,
int op_flag,
unsigned int size,
unsigned int __user *tlv)
{
struct user_element *ue = kcontrol->private_data;
int change = 0;
void *new_data;
if (op_flag > 0) {
if (size > 1024 * 128) /* sane value */
return -EINVAL;
new_data = memdup_user(tlv, size);
if (IS_ERR(new_data))
return PTR_ERR(new_data);
change = ue->tlv_data_size != size;
if (!change)
change = memcmp(ue->tlv_data, new_data, size);
kfree(ue->tlv_data);
ue->tlv_data = new_data;
ue->tlv_data_size = size;
} else {
if (! ue->tlv_data_size || ! ue->tlv_data)
return -ENXIO;
if (size < ue->tlv_data_size)
return -ENOSPC;
if (copy_to_user(tlv, ue->tlv_data, ue->tlv_data_size))
return -EFAULT;
}
return change;
} | 180 | True | 1 |
|
CVE-2014-4654 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:P | LOCAL | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 4.6 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82262a46627bebb0febcc26664746c25cef08563', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82262a46627bebb0febcc26664746c25cef08563', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563', 'name': 'https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113445', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113445', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/6', 'name': '[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59434', 'name': '59434', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/68162', 'name': '68162', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1083.html', 'name': 'RHSA-2014:1083', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60545', 'name': '60545', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-416'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The snd_ctl_elem_add function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not check authorization for SNDRV_CTL_IOCTL_ELEM_REPLACE commands, which allows local users to remove kernel controls and cause a denial of service (use-after-free and system crash) by leveraging /dev/snd/controlCX access for an ioctl call.'}] | 2020-08-14T18:01Z | 2014-07-03T04:22Z | 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 | 2014-06-18 13:32:32+02:00 | ALSA: control: Fix replacing user controls
There are two issues with the current implementation for replacing user
controls. The first is that the code does not check if the control is actually a
user control and neither does it check if the control is owned by the process
that tries to remove it. That allows userspace applications to remove arbitrary
controls, which can cause a user after free if a for example a driver does not
expect a control to be removed from under its feed.
The second issue is that on one hand when a control is replaced the
user_ctl_count limit is not checked and on the other hand the user_ctl_count is
increased (even though the number of user controls does not change). This allows
userspace, once the user_ctl_count limit as been reached, to repeatedly replace
a control until user_ctl_count overflows. Once that happens new controls can be
added effectively bypassing the user_ctl_count limit.
Both issues can be fixed by instead of open-coding the removal of the control
that is to be replaced to use snd_ctl_remove_user_ctl(). This function does
proper permission checks as well as decrements user_ctl_count after the control
has been removed.
Note that by using snd_ctl_remove_user_ctl() the check which returns -EBUSY at
beginning of the function if the control already exists is removed. This is not
a problem though since the check is quite useless, because the lock that is
protecting the control list is released between the check and before adding the
new control to the list, which means that it is possible that a different
control with the same settings is added to the list after the check. Luckily
there is another check that is done while holding the lock in snd_ctl_add(), so
we'll rely on that to make sure that the same control is not added twice.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | 82262a46627bebb0febcc26664746c25cef08563 | 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_ctl_elem_add | snd_ctl_elem_add( struct snd_ctl_file * file , struct snd_ctl_elem_info * info , int replace) | ['file', 'info', 'replace'] | static int snd_ctl_elem_add(struct snd_ctl_file *file,
struct snd_ctl_elem_info *info, int replace)
{
struct snd_card *card = file->card;
struct snd_kcontrol kctl, *_kctl;
unsigned int access;
long private_size;
struct user_element *ue;
int idx, err;
if (!replace && card->user_ctl_count >= MAX_USER_CONTROLS)
return -ENOMEM;
if (info->count < 1)
return -EINVAL;
access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
(info->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|
SNDRV_CTL_ELEM_ACCESS_INACTIVE|
SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE));
info->id.numid = 0;
memset(&kctl, 0, sizeof(kctl));
down_write(&card->controls_rwsem);
_kctl = snd_ctl_find_id(card, &info->id);
err = 0;
if (_kctl) {
if (replace)
err = snd_ctl_remove(card, _kctl);
else
err = -EBUSY;
} else {
if (replace)
err = -ENOENT;
}
up_write(&card->controls_rwsem);
if (err < 0)
return err;
memcpy(&kctl.id, &info->id, sizeof(info->id));
kctl.count = info->owner ? info->owner : 1;
access |= SNDRV_CTL_ELEM_ACCESS_USER;
if (info->type == SNDRV_CTL_ELEM_TYPE_ENUMERATED)
kctl.info = snd_ctl_elem_user_enum_info;
else
kctl.info = snd_ctl_elem_user_info;
if (access & SNDRV_CTL_ELEM_ACCESS_READ)
kctl.get = snd_ctl_elem_user_get;
if (access & SNDRV_CTL_ELEM_ACCESS_WRITE)
kctl.put = snd_ctl_elem_user_put;
if (access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE) {
kctl.tlv.c = snd_ctl_elem_user_tlv;
access |= SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
}
switch (info->type) {
case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
case SNDRV_CTL_ELEM_TYPE_INTEGER:
private_size = sizeof(long);
if (info->count > 128)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_INTEGER64:
private_size = sizeof(long long);
if (info->count > 64)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
private_size = sizeof(unsigned int);
if (info->count > 128 || info->value.enumerated.items == 0)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_BYTES:
private_size = sizeof(unsigned char);
if (info->count > 512)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_IEC958:
private_size = sizeof(struct snd_aes_iec958);
if (info->count != 1)
return -EINVAL;
break;
default:
return -EINVAL;
}
private_size *= info->count;
ue = kzalloc(sizeof(struct user_element) + private_size, GFP_KERNEL);
if (ue == NULL)
return -ENOMEM;
ue->card = card;
ue->info = *info;
ue->info.access = 0;
ue->elem_data = (char *)ue + sizeof(*ue);
ue->elem_data_size = private_size;
if (ue->info.type == SNDRV_CTL_ELEM_TYPE_ENUMERATED) {
err = snd_ctl_elem_init_enum_names(ue);
if (err < 0) {
kfree(ue);
return err;
}
}
kctl.private_free = snd_ctl_elem_user_free;
_kctl = snd_ctl_new(&kctl, access);
if (_kctl == NULL) {
kfree(ue->priv_data);
kfree(ue);
return -ENOMEM;
}
_kctl->private_data = ue;
for (idx = 0; idx < _kctl->count; idx++)
_kctl->vd[idx].owner = file;
err = snd_ctl_add(card, _kctl);
if (err < 0)
return err;
down_write(&card->controls_rwsem);
card->user_ctl_count++;
up_write(&card->controls_rwsem);
return 0;
} | 678 | True | 1 |
|
CVE-2014-4655 | False | False | False | False | AV:L/AC:L/Au:N/C:N/I:N/A:C | LOCAL | LOW | NONE | NONE | NONE | COMPLETE | 4.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113445', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113445', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563', 'name': 'https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82262a46627bebb0febcc26664746c25cef08563', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82262a46627bebb0febcc26664746c25cef08563', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/6', 'name': '[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/59434', 'name': '59434', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/68162', 'name': '68162', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1083.html', 'name': 'RHSA-2014:1083', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60545', 'name': '60545', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1036763', 'name': '1036763', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-190'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The snd_ctl_elem_add function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not properly maintain the user_ctl_count value, which allows local users to cause a denial of service (integer overflow and limit bypass) by leveraging /dev/snd/controlCX access for a large number of SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl calls.'}] | 2020-08-14T18:02Z | 2014-07-03T04:22Z | 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 | Lars-Peter Clausen | 2014-06-18 13:32:32+02:00 | ALSA: control: Fix replacing user controls
There are two issues with the current implementation for replacing user
controls. The first is that the code does not check if the control is actually a
user control and neither does it check if the control is owned by the process
that tries to remove it. That allows userspace applications to remove arbitrary
controls, which can cause a user after free if a for example a driver does not
expect a control to be removed from under its feed.
The second issue is that on one hand when a control is replaced the
user_ctl_count limit is not checked and on the other hand the user_ctl_count is
increased (even though the number of user controls does not change). This allows
userspace, once the user_ctl_count limit as been reached, to repeatedly replace
a control until user_ctl_count overflows. Once that happens new controls can be
added effectively bypassing the user_ctl_count limit.
Both issues can be fixed by instead of open-coding the removal of the control
that is to be replaced to use snd_ctl_remove_user_ctl(). This function does
proper permission checks as well as decrements user_ctl_count after the control
has been removed.
Note that by using snd_ctl_remove_user_ctl() the check which returns -EBUSY at
beginning of the function if the control already exists is removed. This is not
a problem though since the check is quite useless, because the lock that is
protecting the control list is released between the check and before adding the
new control to the list, which means that it is possible that a different
control with the same settings is added to the list after the check. Luckily
there is another check that is done while holding the lock in snd_ctl_add(), so
we'll rely on that to make sure that the same control is not added twice.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | 82262a46627bebb0febcc26664746c25cef08563 | 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_ctl_elem_add | snd_ctl_elem_add( struct snd_ctl_file * file , struct snd_ctl_elem_info * info , int replace) | ['file', 'info', 'replace'] | static int snd_ctl_elem_add(struct snd_ctl_file *file,
struct snd_ctl_elem_info *info, int replace)
{
struct snd_card *card = file->card;
struct snd_kcontrol kctl, *_kctl;
unsigned int access;
long private_size;
struct user_element *ue;
int idx, err;
if (!replace && card->user_ctl_count >= MAX_USER_CONTROLS)
return -ENOMEM;
if (info->count < 1)
return -EINVAL;
access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
(info->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|
SNDRV_CTL_ELEM_ACCESS_INACTIVE|
SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE));
info->id.numid = 0;
memset(&kctl, 0, sizeof(kctl));
down_write(&card->controls_rwsem);
_kctl = snd_ctl_find_id(card, &info->id);
err = 0;
if (_kctl) {
if (replace)
err = snd_ctl_remove(card, _kctl);
else
err = -EBUSY;
} else {
if (replace)
err = -ENOENT;
}
up_write(&card->controls_rwsem);
if (err < 0)
return err;
memcpy(&kctl.id, &info->id, sizeof(info->id));
kctl.count = info->owner ? info->owner : 1;
access |= SNDRV_CTL_ELEM_ACCESS_USER;
if (info->type == SNDRV_CTL_ELEM_TYPE_ENUMERATED)
kctl.info = snd_ctl_elem_user_enum_info;
else
kctl.info = snd_ctl_elem_user_info;
if (access & SNDRV_CTL_ELEM_ACCESS_READ)
kctl.get = snd_ctl_elem_user_get;
if (access & SNDRV_CTL_ELEM_ACCESS_WRITE)
kctl.put = snd_ctl_elem_user_put;
if (access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE) {
kctl.tlv.c = snd_ctl_elem_user_tlv;
access |= SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
}
switch (info->type) {
case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
case SNDRV_CTL_ELEM_TYPE_INTEGER:
private_size = sizeof(long);
if (info->count > 128)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_INTEGER64:
private_size = sizeof(long long);
if (info->count > 64)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
private_size = sizeof(unsigned int);
if (info->count > 128 || info->value.enumerated.items == 0)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_BYTES:
private_size = sizeof(unsigned char);
if (info->count > 512)
return -EINVAL;
break;
case SNDRV_CTL_ELEM_TYPE_IEC958:
private_size = sizeof(struct snd_aes_iec958);
if (info->count != 1)
return -EINVAL;
break;
default:
return -EINVAL;
}
private_size *= info->count;
ue = kzalloc(sizeof(struct user_element) + private_size, GFP_KERNEL);
if (ue == NULL)
return -ENOMEM;
ue->card = card;
ue->info = *info;
ue->info.access = 0;
ue->elem_data = (char *)ue + sizeof(*ue);
ue->elem_data_size = private_size;
if (ue->info.type == SNDRV_CTL_ELEM_TYPE_ENUMERATED) {
err = snd_ctl_elem_init_enum_names(ue);
if (err < 0) {
kfree(ue);
return err;
}
}
kctl.private_free = snd_ctl_elem_user_free;
_kctl = snd_ctl_new(&kctl, access);
if (_kctl == NULL) {
kfree(ue->priv_data);
kfree(ue);
return -ENOMEM;
}
_kctl->private_data = ue;
for (idx = 0; idx < _kctl->count; idx++)
_kctl->vd[idx].owner = file;
err = snd_ctl_add(card, _kctl);
if (err < 0)
return err;
down_write(&card->controls_rwsem);
card->user_ctl_count++;
up_write(&card->controls_rwsem);
return 0;
} | 678 | True | 1 |
|
CVE-2014-4653 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:P | LOCAL | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 4.6 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113409', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113409', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'name': 'https://github.com/torvalds/linux/commit/fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/6', 'name': '[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/59434', 'name': '59434', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/68164', 'name': '68164', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1083.html', 'name': 'RHSA-2014:1083', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60545', 'name': '60545', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-416'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not ensure possession of a read/write lock, which allows local users to cause a denial of service (use-after-free) and obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.'}] | 2020-08-14T18:01Z | 2014-07-03T04:22Z | 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 | 2014-06-18 13:32:33+02:00 | ALSA: control: Don't access controls outside of protected regions
A control that is visible on the card->controls list can be freed at any time.
This means we must not access any of its memory while not holding the
controls_rw_lock. Otherwise we risk a use after free access.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | fd9f26e4eca5d08a27d12c0933fceef76ed9663d | 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_ctl_add | snd_ctl_add( struct snd_card * card , struct snd_kcontrol * kcontrol) | ['card', 'kcontrol'] | int snd_ctl_add(struct snd_card *card, struct snd_kcontrol *kcontrol)
{
struct snd_ctl_elem_id id;
unsigned int idx;
int err = -EINVAL;
if (! kcontrol)
return err;
if (snd_BUG_ON(!card || !kcontrol->info))
goto error;
id = kcontrol->id;
down_write(&card->controls_rwsem);
if (snd_ctl_find_id(card, &id)) {
up_write(&card->controls_rwsem);
dev_err(card->dev, "control %i:%i:%i:%s:%i is already present\n",
id.iface,
id.device,
id.subdevice,
id.name,
id.index);
err = -EBUSY;
goto error;
}
if (snd_ctl_find_hole(card, kcontrol->count) < 0) {
up_write(&card->controls_rwsem);
err = -ENOMEM;
goto error;
}
list_add_tail(&kcontrol->list, &card->controls);
card->controls_count += kcontrol->count;
kcontrol->id.numid = card->last_numid + 1;
card->last_numid += kcontrol->count;
up_write(&card->controls_rwsem);
for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
return 0;
error:
snd_ctl_free_one(kcontrol);
return err;
} | 251 | True | 1 |
|
CVE-2014-4653 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:P | LOCAL | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 4.6 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113409', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113409', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'name': 'https://github.com/torvalds/linux/commit/fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/6', 'name': '[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/59434', 'name': '59434', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/68164', 'name': '68164', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1083.html', 'name': 'RHSA-2014:1083', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60545', 'name': '60545', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-416'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not ensure possession of a read/write lock, which allows local users to cause a denial of service (use-after-free) and obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.'}] | 2020-08-14T18:01Z | 2014-07-03T04:22Z | 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 | 2014-06-18 13:32:33+02:00 | ALSA: control: Don't access controls outside of protected regions
A control that is visible on the card->controls list can be freed at any time.
This means we must not access any of its memory while not holding the
controls_rw_lock. Otherwise we risk a use after free access.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | fd9f26e4eca5d08a27d12c0933fceef76ed9663d | 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_ctl_elem_write | snd_ctl_elem_write( struct snd_card * card , struct snd_ctl_file * file , struct snd_ctl_elem_value * control) | ['card', 'file', 'control'] | static int snd_ctl_elem_write(struct snd_card *card, struct snd_ctl_file *file,
struct snd_ctl_elem_value *control)
{
struct snd_kcontrol *kctl;
struct snd_kcontrol_volatile *vd;
unsigned int index_offset;
int result;
down_read(&card->controls_rwsem);
kctl = snd_ctl_find_id(card, &control->id);
if (kctl == NULL) {
result = -ENOENT;
} else {
index_offset = snd_ctl_get_ioff(kctl, &control->id);
vd = &kctl->vd[index_offset];
if (!(vd->access & SNDRV_CTL_ELEM_ACCESS_WRITE) ||
kctl->put == NULL ||
(file && vd->owner && vd->owner != file)) {
result = -EPERM;
} else {
snd_ctl_build_ioff(&control->id, kctl, index_offset);
result = kctl->put(kctl, control);
}
if (result > 0) {
up_read(&card->controls_rwsem);
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&control->id);
return 0;
}
}
up_read(&card->controls_rwsem);
return result;
} | 200 | True | 1 |
|
CVE-2014-4653 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:P | LOCAL | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 4.6 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113409', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113409', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'name': 'https://github.com/torvalds/linux/commit/fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/6', 'name': '[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/59434', 'name': '59434', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/68164', 'name': '68164', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1083.html', 'name': 'RHSA-2014:1083', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60545', 'name': '60545', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-416'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not ensure possession of a read/write lock, which allows local users to cause a denial of service (use-after-free) and obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.'}] | 2020-08-14T18:01Z | 2014-07-03T04:22Z | 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 | 2014-06-18 13:32:33+02:00 | ALSA: control: Don't access controls outside of protected regions
A control that is visible on the card->controls list can be freed at any time.
This means we must not access any of its memory while not holding the
controls_rw_lock. Otherwise we risk a use after free access.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | fd9f26e4eca5d08a27d12c0933fceef76ed9663d | 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_ctl_replace | snd_ctl_replace( struct snd_card * card , struct snd_kcontrol * kcontrol , bool add_on_replace) | ['card', 'kcontrol', 'add_on_replace'] | int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol,
bool add_on_replace)
{
struct snd_ctl_elem_id id;
unsigned int idx;
struct snd_kcontrol *old;
int ret;
if (!kcontrol)
return -EINVAL;
if (snd_BUG_ON(!card || !kcontrol->info)) {
ret = -EINVAL;
goto error;
}
id = kcontrol->id;
down_write(&card->controls_rwsem);
old = snd_ctl_find_id(card, &id);
if (!old) {
if (add_on_replace)
goto add;
up_write(&card->controls_rwsem);
ret = -EINVAL;
goto error;
}
ret = snd_ctl_remove(card, old);
if (ret < 0) {
up_write(&card->controls_rwsem);
goto error;
}
add:
if (snd_ctl_find_hole(card, kcontrol->count) < 0) {
up_write(&card->controls_rwsem);
ret = -ENOMEM;
goto error;
}
list_add_tail(&kcontrol->list, &card->controls);
card->controls_count += kcontrol->count;
kcontrol->id.numid = card->last_numid + 1;
card->last_numid += kcontrol->count;
up_write(&card->controls_rwsem);
for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_ADD, &id);
return 0;
error:
snd_ctl_free_one(kcontrol);
return ret;
} | 277 | True | 1 |
|
CVE-2014-4653 | False | False | False | False | AV:L/AC:L/Au:N/C:P/I:P/A:P | LOCAL | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 4.6 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113409', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113409', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'name': 'https://github.com/torvalds/linux/commit/fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/6', 'name': '[oss-security] 20140626 Re: CVE Request: Linux kernel ALSA core control API vulnerabilities', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fd9f26e4eca5d08a27d12c0933fceef76ed9663d', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/59434', 'name': '59434', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/68164', 'name': '68164', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/59777', 'name': '59777', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60564', 'name': '60564', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1083.html', 'name': 'RHSA-2014:1083', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2334-1', 'name': 'USN-2334-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2335-1', 'name': 'USN-2335-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60545', 'name': '60545', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-416'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not ensure possession of a read/write lock, which allows local users to cause a denial of service (use-after-free) and obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.'}] | 2020-08-14T18:01Z | 2014-07-03T04:22Z | 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 | 2014-06-18 13:32:33+02:00 | ALSA: control: Don't access controls outside of protected regions
A control that is visible on the card->controls list can be freed at any time.
This means we must not access any of its memory while not holding the
controls_rw_lock. Otherwise we risk a use after free access.
Signed-off-by: Lars-Peter Clausen <[email protected]>
Acked-by: Jaroslav Kysela <[email protected]>
Cc: <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | fd9f26e4eca5d08a27d12c0933fceef76ed9663d | 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_ctl_tlv_ioctl | snd_ctl_tlv_ioctl( struct snd_ctl_file * file , struct snd_ctl_tlv __user * _tlv , int op_flag) | ['file', '_tlv', 'op_flag'] | static int snd_ctl_tlv_ioctl(struct snd_ctl_file *file,
struct snd_ctl_tlv __user *_tlv,
int op_flag)
{
struct snd_card *card = file->card;
struct snd_ctl_tlv tlv;
struct snd_kcontrol *kctl;
struct snd_kcontrol_volatile *vd;
unsigned int len;
int err = 0;
if (copy_from_user(&tlv, _tlv, sizeof(tlv)))
return -EFAULT;
if (tlv.length < sizeof(unsigned int) * 2)
return -EINVAL;
down_read(&card->controls_rwsem);
kctl = snd_ctl_find_numid(card, tlv.numid);
if (kctl == NULL) {
err = -ENOENT;
goto __kctl_end;
}
if (kctl->tlv.p == NULL) {
err = -ENXIO;
goto __kctl_end;
}
vd = &kctl->vd[tlv.numid - kctl->id.numid];
if ((op_flag == 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) == 0) ||
(op_flag > 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) == 0) ||
(op_flag < 0 && (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND) == 0)) {
err = -ENXIO;
goto __kctl_end;
}
if (vd->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
if (vd->owner != NULL && vd->owner != file) {
err = -EPERM;
goto __kctl_end;
}
err = kctl->tlv.c(kctl, op_flag, tlv.length, _tlv->tlv);
if (err > 0) {
up_read(&card->controls_rwsem);
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_TLV, &kctl->id);
return 0;
}
} else {
if (op_flag) {
err = -ENXIO;
goto __kctl_end;
}
len = kctl->tlv.p[1] + 2 * sizeof(unsigned int);
if (tlv.length < len) {
err = -ENOMEM;
goto __kctl_end;
}
if (copy_to_user(_tlv->tlv, kctl->tlv.p, len))
err = -EFAULT;
}
__kctl_end:
up_read(&card->controls_rwsem);
return err;
} | 395 | True | 1 |
|
CVE-2014-4608 | False | False | False | False | AV:N/AC:L/Au:N/C:P/I:P/A:P | NETWORK | LOW | NONE | PARTIAL | PARTIAL | PARTIAL | 7.5 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://www.securitymouse.com/lms-2014-06-16-2', 'name': 'https://www.securitymouse.com/lms-2014-06-16-2', 'refsource': 'MISC', 'tags': ['Broken Link']}, {'url': 'https://github.com/torvalds/linux/commit/206a81c18401c0cde6e579164f752c4b147324ce', 'name': 'https://github.com/torvalds/linux/commit/206a81c18401c0cde6e579164f752c4b147324ce', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=206a81c18401c0cde6e579164f752c4b147324ce', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=206a81c18401c0cde6e579164f752c4b147324ce', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113899', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1113899', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.oberhumer.com/opensource/lzo/', 'name': 'http://www.oberhumer.com/opensource/lzo/', 'refsource': 'MISC', 'tags': ['Third Party Advisory']}, {'url': 'http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html', 'name': 'http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html', 'refsource': 'MISC', 'tags': ['Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/06/26/21', 'name': '[oss-security] 20140626 LMS-2014-06-16-2: Linux Kernel LZO', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/68214', 'name': '68214', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/60011', 'name': '60011', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2421-1', 'name': 'USN-2421-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2419-1', 'name': 'USN-2419-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2416-1', 'name': 'USN-2416-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2420-1', 'name': 'USN-2420-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2418-1', 'name': 'USN-2418-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2417-1', 'name': 'USN-2417-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/62633', 'name': '62633', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60174', 'name': '60174', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0062.html', 'name': 'RHSA-2015:0062', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html', 'name': 'SUSE-SU-2015:0736', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-190'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.2', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': '** DISPUTED ** Multiple integer overflows in the lzo1x_decompress_safe function in lib/lzo/lzo1x_decompress_safe.c in the LZO decompressor in the Linux kernel before 3.15.2 allow context-dependent attackers to cause a denial of service (memory corruption) via a crafted Literal Run. NOTE: the author of the LZO algorithms says "the Linux kernel is *not* affected; media hype."'}] | 2020-08-14T17:51Z | 2014-07-03T04:22Z | 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 | Greg Kroah-Hartman | 2014-06-20 22:00:53-07:00 | lzo: properly check for overruns
The lzo decompressor can, if given some really crazy data, possibly
overrun some variable types. Modify the checking logic to properly
detect overruns before they happen.
Reported-by: "Don A. Bailey" <[email protected]>
Tested-by: "Don A. Bailey" <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]> | 206a81c18401c0cde6e579164f752c4b147324ce | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | lzo1x_decompress_safe | lzo1x_decompress_safe( const unsigned char * in , size_t in_len , unsigned char * out , size_t * out_len) | ['in', 'in_len', 'out', 'out_len'] | int lzo1x_decompress_safe(const unsigned char *in, size_t in_len,
unsigned char *out, size_t *out_len)
{
unsigned char *op;
const unsigned char *ip;
size_t t, next;
size_t state = 0;
const unsigned char *m_pos;
const unsigned char * const ip_end = in + in_len;
unsigned char * const op_end = out + *out_len;
op = out;
ip = in;
if (unlikely(in_len < 3))
goto input_overrun;
if (*ip > 17) {
t = *ip++ - 17;
if (t < 4) {
next = t;
goto match_next;
}
goto copy_literal_run;
}
for (;;) {
t = *ip++;
if (t < 16) {
if (likely(state == 0)) {
if (unlikely(t == 0)) {
while (unlikely(*ip == 0)) {
t += 255;
ip++;
NEED_IP(1);
}
t += 15 + *ip++;
}
t += 3;
copy_literal_run:
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
if (likely(HAVE_IP(t + 15) && HAVE_OP(t + 15))) {
const unsigned char *ie = ip + t;
unsigned char *oe = op + t;
do {
COPY8(op, ip);
op += 8;
ip += 8;
COPY8(op, ip);
op += 8;
ip += 8;
} while (ip < ie);
ip = ie;
op = oe;
} else
#endif
{
NEED_OP(t);
NEED_IP(t + 3);
do {
*op++ = *ip++;
} while (--t > 0);
}
state = 4;
continue;
} else if (state != 4) {
next = t & 3;
m_pos = op - 1;
m_pos -= t >> 2;
m_pos -= *ip++ << 2;
TEST_LB(m_pos);
NEED_OP(2);
op[0] = m_pos[0];
op[1] = m_pos[1];
op += 2;
goto match_next;
} else {
next = t & 3;
m_pos = op - (1 + M2_MAX_OFFSET);
m_pos -= t >> 2;
m_pos -= *ip++ << 2;
t = 3;
}
} else if (t >= 64) {
next = t & 3;
m_pos = op - 1;
m_pos -= (t >> 2) & 7;
m_pos -= *ip++ << 3;
t = (t >> 5) - 1 + (3 - 1);
} else if (t >= 32) {
t = (t & 31) + (3 - 1);
if (unlikely(t == 2)) {
while (unlikely(*ip == 0)) {
t += 255;
ip++;
NEED_IP(1);
}
t += 31 + *ip++;
NEED_IP(2);
}
m_pos = op - 1;
next = get_unaligned_le16(ip);
ip += 2;
m_pos -= next >> 2;
next &= 3;
} else {
m_pos = op;
m_pos -= (t & 8) << 11;
t = (t & 7) + (3 - 1);
if (unlikely(t == 2)) {
while (unlikely(*ip == 0)) {
t += 255;
ip++;
NEED_IP(1);
}
t += 7 + *ip++;
NEED_IP(2);
}
next = get_unaligned_le16(ip);
ip += 2;
m_pos -= next >> 2;
next &= 3;
if (m_pos == op)
goto eof_found;
m_pos -= 0x4000;
}
TEST_LB(m_pos);
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
if (op - m_pos >= 8) {
unsigned char *oe = op + t;
if (likely(HAVE_OP(t + 15))) {
do {
COPY8(op, m_pos);
op += 8;
m_pos += 8;
COPY8(op, m_pos);
op += 8;
m_pos += 8;
} while (op < oe);
op = oe;
if (HAVE_IP(6)) {
state = next;
COPY4(op, ip);
op += next;
ip += next;
continue;
}
} else {
NEED_OP(t);
do {
*op++ = *m_pos++;
} while (op < oe);
}
} else
#endif
{
unsigned char *oe = op + t;
NEED_OP(t);
op[0] = m_pos[0];
op[1] = m_pos[1];
op += 2;
m_pos += 2;
do {
*op++ = *m_pos++;
} while (op < oe);
}
match_next:
state = next;
t = next;
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
if (likely(HAVE_IP(6) && HAVE_OP(4))) {
COPY4(op, ip);
op += t;
ip += t;
} else
#endif
{
NEED_IP(t + 3);
NEED_OP(t);
while (t > 0) {
*op++ = *ip++;
t--;
}
}
}
eof_found:
*out_len = op - out;
return (t != 3 ? LZO_E_ERROR :
ip == ip_end ? LZO_E_OK :
ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN);
input_overrun:
*out_len = op - out;
return LZO_E_INPUT_OVERRUN;
output_overrun:
*out_len = op - out;
return LZO_E_OUTPUT_OVERRUN;
lookbehind_overrun:
*out_len = op - out;
return LZO_E_LOOKBEHIND_OVERRUN;
} | 1065 | True | 1 |
|
CVE-2014-4943 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://openwall.com/lists/oss-security/2014/07/17/1', 'name': '[oss-security] 20140716 CVE-2014-4943: Linux privilege escalation in ppp over l2tp sockets', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/3cf521f7dc87c031617fd47e4b7aa2593c2f3daf', 'name': 'https://github.com/torvalds/linux/commit/3cf521f7dc87c031617fd47e4b7aa2593c2f3daf', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1119458', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1119458', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3cf521f7dc87c031617fd47e4b7aa2593c2f3daf', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3cf521f7dc87c031617fd47e4b7aa2593c2f3daf', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/60393', 'name': '60393', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60011', 'name': '60011', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-0924.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-0924.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3047.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3047.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60071', 'name': '60071', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3048.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3048.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60220', 'name': '60220', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60380', 'name': '60380', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030610', 'name': '1030610', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.debian.org/security/2014/dsa-2992', 'name': 'DSA-2992', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1025.html', 'name': 'RHSA-2014:1025', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.exploit-db.com/exploits/36267', 'name': '36267', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://osvdb.org/show/osvdb/109277', 'name': '109277', 'refsource': 'OSVDB', 'tags': ['Broken Link']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59790', 'name': '59790', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/94665', 'name': 'linux-kernel-cve20144943-priv-esc(94665)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-269'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.6', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_aus:6.2:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The PPPoL2TP feature in net/l2tp/l2tp_ppp.c in the Linux kernel through 3.15.6 allows local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket.'}] | 2020-08-14T18:09Z | 2014-07-19T19:55Z | Improper Privilege Management | The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | https://cwe.mitre.org/data/definitions/269.html | 0 | Sasha Levin | 2014-07-14 17:02:31-07:00 | net/l2tp: don't fall back on UDP [get|set]sockopt
The l2tp [get|set]sockopt() code has fallen back to the UDP functions
for socket option levels != SOL_PPPOL2TP since day one, but that has
never actually worked, since the l2tp socket isn't an inet socket.
As David Miller points out:
"If we wanted this to work, it'd have to look up the tunnel and then
use tunnel->sk, but I wonder how useful that would be"
Since this can never have worked so nobody could possibly have depended
on that functionality, just remove the broken code and return -EINVAL.
Reported-by: Sasha Levin <[email protected]>
Acked-by: James Chapman <[email protected]>
Acked-by: David Miller <[email protected]>
Cc: Phil Turnbull <[email protected]>
Cc: Vegard Nossum <[email protected]>
Cc: Willy Tarreau <[email protected]>
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]> | 3cf521f7dc87c031617fd47e4b7aa2593c2f3daf | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | pppol2tp_getsockopt | pppol2tp_getsockopt( struct socket * sock , int level , int optname , char __user * optval , int __user * optlen) | ['sock', 'level', 'optname', 'optval', 'optlen'] | static int pppol2tp_getsockopt(struct socket *sock, int level, int optname,
char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
struct l2tp_session *session;
struct l2tp_tunnel *tunnel;
int val, len;
int err;
struct pppol2tp_session *ps;
if (level != SOL_PPPOL2TP)
return udp_prot.getsockopt(sk, level, optname, optval, optlen);
if (get_user(len, optlen))
return -EFAULT;
len = min_t(unsigned int, len, sizeof(int));
if (len < 0)
return -EINVAL;
err = -ENOTCONN;
if (sk->sk_user_data == NULL)
goto end;
/* Get the session context */
err = -EBADF;
session = pppol2tp_sock_to_session(sk);
if (session == NULL)
goto end;
/* Special case: if session_id == 0x0000, treat as operation on tunnel */
ps = l2tp_session_priv(session);
if ((session->session_id == 0) &&
(session->peer_session_id == 0)) {
err = -EBADF;
tunnel = l2tp_sock_to_tunnel(ps->tunnel_sock);
if (tunnel == NULL)
goto end_put_sess;
err = pppol2tp_tunnel_getsockopt(sk, tunnel, optname, &val);
sock_put(ps->tunnel_sock);
} else
err = pppol2tp_session_getsockopt(sk, session, optname, &val);
err = -EFAULT;
if (put_user(len, optlen))
goto end_put_sess;
if (copy_to_user((void __user *) optval, &val, len))
goto end_put_sess;
err = 0;
end_put_sess:
sock_put(sk);
end:
return err;
} | 293 | True | 1 |
||
CVE-2014-4943 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://openwall.com/lists/oss-security/2014/07/17/1', 'name': '[oss-security] 20140716 CVE-2014-4943: Linux privilege escalation in ppp over l2tp sockets', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/3cf521f7dc87c031617fd47e4b7aa2593c2f3daf', 'name': 'https://github.com/torvalds/linux/commit/3cf521f7dc87c031617fd47e4b7aa2593c2f3daf', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1119458', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1119458', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3cf521f7dc87c031617fd47e4b7aa2593c2f3daf', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3cf521f7dc87c031617fd47e4b7aa2593c2f3daf', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://secunia.com/advisories/60393', 'name': '60393', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60011', 'name': '60011', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-0924.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-0924.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3047.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3047.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60071', 'name': '60071', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://linux.oracle.com/errata/ELSA-2014-3048.html', 'name': 'http://linux.oracle.com/errata/ELSA-2014-3048.html', 'refsource': 'CONFIRM', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60220', 'name': '60220', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/60380', 'name': '60380', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030610', 'name': '1030610', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.debian.org/security/2014/dsa-2992', 'name': 'DSA-2992', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1025.html', 'name': 'RHSA-2014:1025', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://www.exploit-db.com/exploits/36267', 'name': '36267', 'refsource': 'EXPLOIT-DB', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://osvdb.org/show/osvdb/109277', 'name': '109277', 'refsource': 'OSVDB', 'tags': ['Broken Link']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59790', 'name': '59790', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/94665', 'name': 'linux-kernel-cve20144943-priv-esc(94665)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-269'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.15.6', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_aus:6.2:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The PPPoL2TP feature in net/l2tp/l2tp_ppp.c in the Linux kernel through 3.15.6 allows local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket.'}] | 2020-08-14T18:09Z | 2014-07-19T19:55Z | Improper Privilege Management | The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | https://cwe.mitre.org/data/definitions/269.html | 0 | Sasha Levin | 2014-07-14 17:02:31-07:00 | net/l2tp: don't fall back on UDP [get|set]sockopt
The l2tp [get|set]sockopt() code has fallen back to the UDP functions
for socket option levels != SOL_PPPOL2TP since day one, but that has
never actually worked, since the l2tp socket isn't an inet socket.
As David Miller points out:
"If we wanted this to work, it'd have to look up the tunnel and then
use tunnel->sk, but I wonder how useful that would be"
Since this can never have worked so nobody could possibly have depended
on that functionality, just remove the broken code and return -EINVAL.
Reported-by: Sasha Levin <[email protected]>
Acked-by: James Chapman <[email protected]>
Acked-by: David Miller <[email protected]>
Cc: Phil Turnbull <[email protected]>
Cc: Vegard Nossum <[email protected]>
Cc: Willy Tarreau <[email protected]>
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]> | 3cf521f7dc87c031617fd47e4b7aa2593c2f3daf | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | pppol2tp_setsockopt | pppol2tp_setsockopt( struct socket * sock , int level , int optname , char __user * optval , unsigned int optlen) | ['sock', 'level', 'optname', 'optval', 'optlen'] | static int pppol2tp_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct l2tp_session *session;
struct l2tp_tunnel *tunnel;
struct pppol2tp_session *ps;
int val;
int err;
if (level != SOL_PPPOL2TP)
return udp_prot.setsockopt(sk, level, optname, optval, optlen);
if (optlen < sizeof(int))
return -EINVAL;
if (get_user(val, (int __user *)optval))
return -EFAULT;
err = -ENOTCONN;
if (sk->sk_user_data == NULL)
goto end;
/* Get session context from the socket */
err = -EBADF;
session = pppol2tp_sock_to_session(sk);
if (session == NULL)
goto end;
/* Special case: if session_id == 0x0000, treat as operation on tunnel
*/
ps = l2tp_session_priv(session);
if ((session->session_id == 0) &&
(session->peer_session_id == 0)) {
err = -EBADF;
tunnel = l2tp_sock_to_tunnel(ps->tunnel_sock);
if (tunnel == NULL)
goto end_put_sess;
err = pppol2tp_tunnel_setsockopt(sk, tunnel, optname, val);
sock_put(ps->tunnel_sock);
} else
err = pppol2tp_session_setsockopt(sk, session, optname, val);
err = 0;
end_put_sess:
sock_put(sk);
end:
return err;
} | 244 | True | 1 |
||
CVE-2014-3534 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/dab6cf55f81a6e16b8147aed9a843e1691dcd318', 'name': 'https://github.com/torvalds/linux/commit/dab6cf55f81a6e16b8147aed9a843e1691dcd318', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1114089', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1114089', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dab6cf55f81a6e16b8147aed9a843e1691dcd318', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dab6cf55f81a6e16b8147aed9a843e1691dcd318', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2992', 'name': 'DSA-2992', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030683', 'name': '1030683', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/68940', 'name': '68940', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.osvdb.org/109546', 'name': '109546', 'refsource': 'OSVDB', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/60351', 'name': '60351', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59790', 'name': '59790', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95069', 'name': 'linux-cve20143534-priv-esc(95069)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-269'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.8', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'arch/s390/kernel/ptrace.c in the Linux kernel before 3.15.8 on the s390 platform does not properly restrict address-space control operations in PTRACE_POKEUSR_AREA requests, which allows local users to obtain read and write access to kernel memory locations, and consequently gain privileges, via a crafted application that makes a ptrace system call.'}] | 2020-08-14T18:09Z | 2014-08-01T11:13Z | Improper Privilege Management | The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | https://cwe.mitre.org/data/definitions/269.html | 0 | Martin Schwidefsky | 2014-06-23 15:29:40+02:00 | s390/ptrace: fix PSW mask check
The PSW mask check of the PTRACE_POKEUSR_AREA command is incorrect.
The PSW_MASK_USER define contains the PSW_MASK_ASC bits, the ptrace
interface accepts all combinations for the address-space-control
bits. To protect the kernel space the PSW mask check in ptrace needs
to reject the address-space-control bit combination for home space.
Fixes CVE-2014-3534
Cc: [email protected]
Signed-off-by: Martin Schwidefsky <[email protected]> | dab6cf55f81a6e16b8147aed9a843e1691dcd318 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __poke_user | __poke_user( struct task_struct * child , addr_t addr , addr_t data) | ['child', 'addr', 'data'] | static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
{
struct user *dummy = NULL;
addr_t offset;
if (addr < (addr_t) &dummy->regs.acrs) {
/*
* psw and gprs are stored on the stack
*/
if (addr == (addr_t) &dummy->regs.psw.mask) {
unsigned long mask = PSW_MASK_USER;
mask |= is_ri_task(child) ? PSW_MASK_RI : 0;
if ((data & ~mask) != PSW_USER_BITS)
return -EINVAL;
if ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))
return -EINVAL;
}
*(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr) = data;
} else if (addr < (addr_t) (&dummy->regs.orig_gpr2)) {
/*
* access registers are stored in the thread structure
*/
offset = addr - (addr_t) &dummy->regs.acrs;
#ifdef CONFIG_64BIT
/*
* Very special case: old & broken 64 bit gdb writing
* to acrs[15] with a 64 bit value. Ignore the lower
* half of the value and write the upper 32 bit to
* acrs[15]. Sick...
*/
if (addr == (addr_t) &dummy->regs.acrs[15])
child->thread.acrs[15] = (unsigned int) (data >> 32);
else
#endif
*(addr_t *)((addr_t) &child->thread.acrs + offset) = data;
} else if (addr == (addr_t) &dummy->regs.orig_gpr2) {
/*
* orig_gpr2 is stored on the kernel stack
*/
task_pt_regs(child)->orig_gpr2 = data;
} else if (addr < (addr_t) &dummy->regs.fp_regs) {
/*
* prevent writes of padding hole between
* orig_gpr2 and fp_regs on s390.
*/
return 0;
} else if (addr < (addr_t) (&dummy->regs.fp_regs + 1)) {
/*
* floating point regs. are stored in the thread structure
*/
if (addr == (addr_t) &dummy->regs.fp_regs.fpc)
if ((unsigned int) data != 0 ||
test_fp_ctl(data >> (BITS_PER_LONG - 32)))
return -EINVAL;
offset = addr - (addr_t) &dummy->regs.fp_regs;
*(addr_t *)((addr_t) &child->thread.fp_regs + offset) = data;
} else if (addr < (addr_t) (&dummy->regs.per_info + 1)) {
/*
* Handle access to the per_info structure.
*/
addr -= (addr_t) &dummy->regs.per_info;
__poke_user_per(child, addr, data);
}
return 0;
} | 412 | True | 1 |
||
CVE-2014-3534 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://github.com/torvalds/linux/commit/dab6cf55f81a6e16b8147aed9a843e1691dcd318', 'name': 'https://github.com/torvalds/linux/commit/dab6cf55f81a6e16b8147aed9a843e1691dcd318', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1114089', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1114089', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dab6cf55f81a6e16b8147aed9a843e1691dcd318', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dab6cf55f81a6e16b8147aed9a843e1691dcd318', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.debian.org/security/2014/dsa-2992', 'name': 'DSA-2992', 'refsource': 'DEBIAN', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securitytracker.com/id/1030683', 'name': '1030683', 'refsource': 'SECTRACK', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.securityfocus.com/bid/68940', 'name': '68940', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.osvdb.org/109546', 'name': '109546', 'refsource': 'OSVDB', 'tags': ['Broken Link']}, {'url': 'http://secunia.com/advisories/60351', 'name': '60351', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'http://secunia.com/advisories/59790', 'name': '59790', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95069', 'name': 'linux-cve20143534-priv-esc(95069)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-269'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.8', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'arch/s390/kernel/ptrace.c in the Linux kernel before 3.15.8 on the s390 platform does not properly restrict address-space control operations in PTRACE_POKEUSR_AREA requests, which allows local users to obtain read and write access to kernel memory locations, and consequently gain privileges, via a crafted application that makes a ptrace system call.'}] | 2020-08-14T18:09Z | 2014-08-01T11:13Z | Improper Privilege Management | The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | https://cwe.mitre.org/data/definitions/269.html | 0 | Martin Schwidefsky | 2014-06-23 15:29:40+02:00 | s390/ptrace: fix PSW mask check
The PSW mask check of the PTRACE_POKEUSR_AREA command is incorrect.
The PSW_MASK_USER define contains the PSW_MASK_ASC bits, the ptrace
interface accepts all combinations for the address-space-control
bits. To protect the kernel space the PSW mask check in ptrace needs
to reject the address-space-control bit combination for home space.
Fixes CVE-2014-3534
Cc: [email protected]
Signed-off-by: Martin Schwidefsky <[email protected]> | dab6cf55f81a6e16b8147aed9a843e1691dcd318 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __poke_user_compat | __poke_user_compat( struct task_struct * child , addr_t addr , addr_t data) | ['child', 'addr', 'data'] | static int __poke_user_compat(struct task_struct *child,
addr_t addr, addr_t data)
{
struct compat_user *dummy32 = NULL;
__u32 tmp = (__u32) data;
addr_t offset;
if (addr < (addr_t) &dummy32->regs.acrs) {
struct pt_regs *regs = task_pt_regs(child);
/*
* psw, gprs, acrs and orig_gpr2 are stored on the stack
*/
if (addr == (addr_t) &dummy32->regs.psw.mask) {
__u32 mask = PSW32_MASK_USER;
mask |= is_ri_task(child) ? PSW32_MASK_RI : 0;
/* Build a 64 bit psw mask from 31 bit mask. */
if ((tmp & ~mask) != PSW32_USER_BITS)
/* Invalid psw mask. */
return -EINVAL;
regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
(regs->psw.mask & PSW_MASK_BA) |
(__u64)(tmp & mask) << 32;
} else if (addr == (addr_t) &dummy32->regs.psw.addr) {
/* Build a 64 bit psw address from 31 bit address. */
regs->psw.addr = (__u64) tmp & PSW32_ADDR_INSN;
/* Transfer 31 bit amode bit to psw mask. */
regs->psw.mask = (regs->psw.mask & ~PSW_MASK_BA) |
(__u64)(tmp & PSW32_ADDR_AMODE);
} else {
/* gpr 0-15 */
*(__u32*)((addr_t) ®s->psw + addr*2 + 4) = tmp;
}
} else if (addr < (addr_t) (&dummy32->regs.orig_gpr2)) {
/*
* access registers are stored in the thread structure
*/
offset = addr - (addr_t) &dummy32->regs.acrs;
*(__u32*)((addr_t) &child->thread.acrs + offset) = tmp;
} else if (addr == (addr_t) (&dummy32->regs.orig_gpr2)) {
/*
* orig_gpr2 is stored on the kernel stack
*/
*(__u32*)((addr_t) &task_pt_regs(child)->orig_gpr2 + 4) = tmp;
} else if (addr < (addr_t) &dummy32->regs.fp_regs) {
/*
* prevent writess of padding hole between
* orig_gpr2 and fp_regs on s390.
*/
return 0;
} else if (addr < (addr_t) (&dummy32->regs.fp_regs + 1)) {
/*
* floating point regs. are stored in the thread structure
*/
if (addr == (addr_t) &dummy32->regs.fp_regs.fpc &&
test_fp_ctl(tmp))
return -EINVAL;
offset = addr - (addr_t) &dummy32->regs.fp_regs;
*(__u32 *)((addr_t) &child->thread.fp_regs + offset) = tmp;
} else if (addr < (addr_t) (&dummy32->regs.per_info + 1)) {
/*
* Handle access to the per_info structure.
*/
addr -= (addr_t) &dummy32->regs.per_info;
__poke_user_per_compat(child, addr, data);
}
return 0;
} | 469 | True | 1 |
||
CVE-2014-9904 | 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=6217e5ede23285ddfee10d2e4ba0cc2d4c046205', 'name': 'http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6217e5ede23285ddfee10d2e4ba0cc2d4c046205', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/6217e5ede23285ddfee10d2e4ba0cc2d4c046205', 'name': 'https://github.com/torvalds/linux/commit/6217e5ede23285ddfee10d2e4ba0cc2d4c046205', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'http://www.debian.org/security/2016/dsa-3616', 'name': 'DSA-3616', 'refsource': 'DEBIAN', '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/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': 'http://www.securityfocus.com/bid/91510', 'name': '91510', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.securitytracker.com/id/1036189', 'name': '1036189', 'refsource': 'SECTRACK', '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': '3.16.6', 'cpe_name': []}]}, {'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:novell:suse_linux_enterprise_real_time_extension:12:sp1:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The snd_compress_check_input function in sound/core/compress_offload.c in the ALSA subsystem in the Linux kernel before 3.17 does not properly check for an integer overflow, which allows local users to cause a denial of service (insufficient memory allocation) or possibly have unspecified other impact via a crafted SNDRV_COMPRESS_SET_PARAMS ioctl call.'}] | 2017-09-01T01:29Z | 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 | 2014-07-16 09:37:04+03:00 | ALSA: compress: fix an integer overflow check
I previously added an integer overflow check here but looking at it now,
it's still buggy.
The bug happens in snd_compr_allocate_buffer(). We multiply
".fragments" and ".fragment_size" and that doesn't overflow but then we
save it in an unsigned int so it truncates the high bits away and we
allocate a smaller than expected size.
Fixes: b35cc8225845 ('ALSA: compress_core: integer overflow in snd_compr_allocate_buffer()')
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]> | 6217e5ede23285ddfee10d2e4ba0cc2d4c046205 | 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_compress_check_input | snd_compress_check_input( struct snd_compr_params * params) | ['params'] | static int snd_compress_check_input(struct snd_compr_params *params)
{
/* first let's check the buffer parameter's */
if (params->buffer.fragment_size == 0 ||
params->buffer.fragments > SIZE_MAX / params->buffer.fragment_size)
return -EINVAL;
/* now codec parameters */
if (params->codec.id == 0 || params->codec.id > SND_AUDIOCODEC_MAX)
return -EINVAL;
if (params->codec.ch_in == 0 || params->codec.ch_out == 0)
return -EINVAL;
return 0;
} | 84 | True | 1 |
|
CVE-2014-5045 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/07/24/2', 'name': '[oss-security] 20140723 Re: CVE request: kernel: vfs: refcount issues during unmount on symlink', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212', 'name': 'https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=295dc39d941dc2ae53d5c170365af4c9d5c16212', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=295dc39d941dc2ae53d5c170365af4c9d5c16212', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1122472', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1122472', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Third Party Advisory']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory', 'Vendor Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0062.html', 'name': 'RHSA-2015:0062', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/68862', 'name': '68862', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://secunia.com/advisories/60353', 'name': '60353', 'refsource': 'SECUNIA', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-59'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndExcluding': '3.15.8', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_server_tus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:redhat:enterprise_linux_eus:6.5:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.'}] | 2020-08-14T18:11Z | 2014-08-01T11:13Z | Improper Link Resolution Before File Access ('Link Following') | The software attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. | https://cwe.mitre.org/data/definitions/59.html | 0 | Vasily Averin | 2014-07-21 12:30:23+04:00 | fs: umount on symlink leaks mnt count
Currently umount on symlink blocks following umount:
/vz is separate mount
# ls /vz/ -al | grep test
drwxr-xr-x. 2 root root 4096 Jul 19 01:14 testdir
lrwxrwxrwx. 1 root root 11 Jul 19 01:16 testlink -> /vz/testdir
# umount -l /vz/testlink
umount: /vz/testlink: not mounted (expected)
# lsof /vz
# umount /vz
umount: /vz: device is busy. (unexpected)
In this case mountpoint_last() gets an extra refcount on path->mnt
Signed-off-by: Vasily Averin <[email protected]>
Acked-by: Ian Kent <[email protected]>
Acked-by: Jeff Layton <[email protected]>
Cc: [email protected]
Signed-off-by: Christoph Hellwig <[email protected]> | 295dc39d941dc2ae53d5c170365af4c9d5c16212 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | mountpoint_last | mountpoint_last( struct nameidata * nd , struct path * path) | ['nd', 'path'] | mountpoint_last(struct nameidata *nd, struct path *path)
{
int error = 0;
struct dentry *dentry;
struct dentry *dir = nd->path.dentry;
/* If we're in rcuwalk, drop out of it to handle last component */
if (nd->flags & LOOKUP_RCU) {
if (unlazy_walk(nd, NULL)) {
error = -ECHILD;
goto out;
}
}
nd->flags &= ~LOOKUP_PARENT;
if (unlikely(nd->last_type != LAST_NORM)) {
error = handle_dots(nd, nd->last_type);
if (error)
goto out;
dentry = dget(nd->path.dentry);
goto done;
}
mutex_lock(&dir->d_inode->i_mutex);
dentry = d_lookup(dir, &nd->last);
if (!dentry) {
/*
* No cached dentry. Mounted dentries are pinned in the cache,
* so that means that this dentry is probably a symlink or the
* path doesn't actually point to a mounted dentry.
*/
dentry = d_alloc(dir, &nd->last);
if (!dentry) {
error = -ENOMEM;
mutex_unlock(&dir->d_inode->i_mutex);
goto out;
}
dentry = lookup_real(dir->d_inode, dentry, nd->flags);
error = PTR_ERR(dentry);
if (IS_ERR(dentry)) {
mutex_unlock(&dir->d_inode->i_mutex);
goto out;
}
}
mutex_unlock(&dir->d_inode->i_mutex);
done:
if (!dentry->d_inode || d_is_negative(dentry)) {
error = -ENOENT;
dput(dentry);
goto out;
}
path->dentry = dentry;
path->mnt = mntget(nd->path.mnt);
if (should_follow_link(dentry, nd->flags & LOOKUP_FOLLOW))
return 1;
follow_mount(path);
error = 0;
out:
terminate_walk(nd);
return error;
} | 318 | True | 1 |
||
CVE-2014-5206 | False | False | False | False | AV:L/AC:L/Au:N/C:C/I:C/A:C | LOCAL | LOW | NONE | COMPLETE | COMPLETE | COMPLETE | 7.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a6138db815df5ee542d848318e5dae681590fccd', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a6138db815df5ee542d848318e5dae681590fccd', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd', 'name': 'https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/08/13/4', 'name': '[oss-security] 20140813 Re: CVE Request: ro bind mount bypass using user namespaces', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1129662', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1129662', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2317-1', 'name': 'USN-2317-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2318-1', 'name': 'USN-2318-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/69214', 'name': '69214', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-269'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.'}] | 2020-08-14T18:13Z | 2014-08-18T11:15Z | Improper Privilege Management | The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | https://cwe.mitre.org/data/definitions/269.html | 0 | Eric W. Biederman | 2014-07-28 16:26:53-07:00 | mnt: Only change user settable mount flags in remount
Kenton Varda <[email protected]> discovered that by remounting a
read-only bind mount read-only in a user namespace the
MNT_LOCK_READONLY bit would be cleared, allowing an unprivileged user
to the remount a read-only mount read-write.
Correct this by replacing the mask of mount flags to preserve
with a mask of mount flags that may be changed, and preserve
all others. This ensures that any future bugs with this mask and
remount will fail in an easy to detect way where new mount flags
simply won't change.
Cc: [email protected]
Acked-by: Serge E. Hallyn <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]> | a6138db815df5ee542d848318e5dae681590fccd | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | do_remount | do_remount( struct path * path , int flags , int mnt_flags , void * data) | ['path', 'flags', 'mnt_flags', 'data'] | static int do_remount(struct path *path, int flags, int mnt_flags,
void *data)
{
int err;
struct super_block *sb = path->mnt->mnt_sb;
struct mount *mnt = real_mount(path->mnt);
if (!check_mnt(mnt))
return -EINVAL;
if (path->dentry != path->mnt->mnt_root)
return -EINVAL;
err = security_sb_remount(sb, data);
if (err)
return err;
down_write(&sb->s_umount);
if (flags & MS_BIND)
err = change_mount_flags(path->mnt, flags);
else if (!capable(CAP_SYS_ADMIN))
err = -EPERM;
else
err = do_remount_sb(sb, flags, data, 0);
if (!err) {
lock_mount_hash();
mnt_flags |= mnt->mnt.mnt_flags & MNT_PROPAGATION_MASK;
mnt->mnt.mnt_flags = mnt_flags;
touch_mnt_namespace(mnt->mnt_ns);
unlock_mount_hash();
}
up_write(&sb->s_umount);
return err;
} | 193 | True | 1 |
||
CVE-2014-5207 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'http://www.openwall.com/lists/oss-security/2014/08/13/4', 'name': '[oss-security] 20140813 Re: CVE Request: ro bind mount bypass using user namespaces', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9566d6742852c527bf5af38af5cbb878dad75705', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9566d6742852c527bf5af38af5cbb878dad75705', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1129662', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1129662', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/9566d6742852c527bf5af38af5cbb878dad75705', 'name': 'https://github.com/torvalds/linux/commit/9566d6742852c527bf5af38af5cbb878dad75705', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalation.html', 'name': 'http://packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalation.html', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://osvdb.org/show/osvdb/110055', 'name': '110055', 'refsource': 'OSVDB', 'tags': ['Broken Link']}, {'url': 'http://www.exploit-db.com/exploits/34923', 'name': '34923', 'refsource': 'EXPLOIT-DB', 'tags': ['Exploit', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-2317-1', 'name': 'USN-2317-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2318-1', 'name': 'USN-2318-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/69216', 'name': '69216', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://seclists.org/oss-sec/2014/q3/352', 'name': '[oss-security] 20140812 CVE Request: ro bind mount bypass using user namespaces', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95266', 'name': 'linux-kernel-cve20145207-sec-bypass(95266)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-269'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'fs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled via a "mount -o remount" command within a user namespace.'}] | 2020-08-14T18:14Z | 2014-08-18T11:15Z | Improper Privilege Management | The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | https://cwe.mitre.org/data/definitions/269.html | 0 | Eric W. Biederman | 2014-07-28 17:26:07-07:00 | mnt: Correct permission checks in do_remount
While invesgiating the issue where in "mount --bind -oremount,ro ..."
would result in later "mount --bind -oremount,rw" succeeding even if
the mount started off locked I realized that there are several
additional mount flags that should be locked and are not.
In particular MNT_NOSUID, MNT_NODEV, MNT_NOEXEC, and the atime
flags in addition to MNT_READONLY should all be locked. These
flags are all per superblock, can all be changed with MS_BIND,
and should not be changable if set by a more privileged user.
The following additions to the current logic are added in this patch.
- nosuid may not be clearable by a less privileged user.
- nodev may not be clearable by a less privielged user.
- noexec may not be clearable by a less privileged user.
- atime flags may not be changeable by a less privileged user.
The logic with atime is that always setting atime on access is a
global policy and backup software and auditing software could break if
atime bits are not updated (when they are configured to be updated),
and serious performance degradation could result (DOS attack) if atime
updates happen when they have been explicitly disabled. Therefore an
unprivileged user should not be able to mess with the atime bits set
by a more privileged user.
The additional restrictions are implemented with the addition of
MNT_LOCK_NOSUID, MNT_LOCK_NODEV, MNT_LOCK_NOEXEC, and MNT_LOCK_ATIME
mnt flags.
Taken together these changes and the fixes for MNT_LOCK_READONLY
should make it safe for an unprivileged user to create a user
namespace and to call "mount --bind -o remount,... ..." without
the danger of mount flags being changed maliciously.
Cc: [email protected]
Acked-by: Serge E. Hallyn <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]> | 9566d6742852c527bf5af38af5cbb878dad75705 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | clone_mnt | clone_mnt( struct mount * old , struct dentry * root , int flag) | ['old', 'root', 'flag'] | static struct mount *clone_mnt(struct mount *old, struct dentry *root,
int flag)
{
struct super_block *sb = old->mnt.mnt_sb;
struct mount *mnt;
int err;
mnt = alloc_vfsmnt(old->mnt_devname);
if (!mnt)
return ERR_PTR(-ENOMEM);
if (flag & (CL_SLAVE | CL_PRIVATE | CL_SHARED_TO_SLAVE))
mnt->mnt_group_id = 0; /* not a peer of original */
else
mnt->mnt_group_id = old->mnt_group_id;
if ((flag & CL_MAKE_SHARED) && !mnt->mnt_group_id) {
err = mnt_alloc_group_id(mnt);
if (err)
goto out_free;
}
mnt->mnt.mnt_flags = old->mnt.mnt_flags & ~(MNT_WRITE_HOLD|MNT_MARKED);
/* Don't allow unprivileged users to change mount flags */
if ((flag & CL_UNPRIVILEGED) && (mnt->mnt.mnt_flags & MNT_READONLY))
mnt->mnt.mnt_flags |= MNT_LOCK_READONLY;
/* Don't allow unprivileged users to reveal what is under a mount */
if ((flag & CL_UNPRIVILEGED) && list_empty(&old->mnt_expire))
mnt->mnt.mnt_flags |= MNT_LOCKED;
atomic_inc(&sb->s_active);
mnt->mnt.mnt_sb = sb;
mnt->mnt.mnt_root = dget(root);
mnt->mnt_mountpoint = mnt->mnt.mnt_root;
mnt->mnt_parent = mnt;
lock_mount_hash();
list_add_tail(&mnt->mnt_instance, &sb->s_mounts);
unlock_mount_hash();
if ((flag & CL_SLAVE) ||
((flag & CL_SHARED_TO_SLAVE) && IS_MNT_SHARED(old))) {
list_add(&mnt->mnt_slave, &old->mnt_slave_list);
mnt->mnt_master = old;
CLEAR_MNT_SHARED(mnt);
} else if (!(flag & CL_PRIVATE)) {
if ((flag & CL_MAKE_SHARED) || IS_MNT_SHARED(old))
list_add(&mnt->mnt_share, &old->mnt_share);
if (IS_MNT_SLAVE(old))
list_add(&mnt->mnt_slave, &old->mnt_slave);
mnt->mnt_master = old->mnt_master;
}
if (flag & CL_MAKE_SHARED)
set_mnt_shared(mnt);
/* stick the duplicate mount on the same expiry list
* as the original if that was on one */
if (flag & CL_EXPIRE) {
if (!list_empty(&old->mnt_expire))
list_add(&mnt->mnt_expire, &old->mnt_expire);
}
return mnt;
out_free:
mnt_free_id(mnt);
free_vfsmnt(mnt);
return ERR_PTR(err);
} | 422 | True | 1 |
||
CVE-2014-5207 | False | False | False | False | AV:L/AC:H/Au:N/C:C/I:C/A:C | LOCAL | HIGH | NONE | COMPLETE | COMPLETE | COMPLETE | 6.2 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | False | [{'url': 'http://www.openwall.com/lists/oss-security/2014/08/13/4', 'name': '[oss-security] 20140813 Re: CVE Request: ro bind mount bypass using user namespaces', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9566d6742852c527bf5af38af5cbb878dad75705', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9566d6742852c527bf5af38af5cbb878dad75705', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1129662', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1129662', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking', 'Patch', 'Third Party Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/9566d6742852c527bf5af38af5cbb878dad75705', 'name': 'https://github.com/torvalds/linux/commit/9566d6742852c527bf5af38af5cbb878dad75705', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Third Party Advisory']}, {'url': 'http://packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalation.html', 'name': 'http://packetstormsecurity.com/files/128595/Linux-Kernel-3.16.1-FUSE-Privilege-Escalation.html', 'refsource': 'MISC', 'tags': ['Exploit', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://osvdb.org/show/osvdb/110055', 'name': '110055', 'refsource': 'OSVDB', 'tags': ['Broken Link']}, {'url': 'http://www.exploit-db.com/exploits/34923', 'name': '34923', 'refsource': 'EXPLOIT-DB', 'tags': ['Exploit', 'Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-2317-1', 'name': 'USN-2317-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2318-1', 'name': 'USN-2318-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/69216', 'name': '69216', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://seclists.org/oss-sec/2014/q3/352', 'name': '[oss-security] 20140812 CVE Request: ro bind mount bypass using user namespaces', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95266', 'name': 'linux-kernel-cve20145207-sec-bypass(95266)', 'refsource': 'XF', 'tags': ['Third Party Advisory', 'VDB Entry']}] | [{'description': [{'lang': 'en', 'value': 'CWE-269'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'fs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled via a "mount -o remount" command within a user namespace.'}] | 2020-08-14T18:14Z | 2014-08-18T11:15Z | Improper Privilege Management | The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | https://cwe.mitre.org/data/definitions/269.html | 0 | Eric W. Biederman | 2014-07-28 17:26:07-07:00 | mnt: Correct permission checks in do_remount
While invesgiating the issue where in "mount --bind -oremount,ro ..."
would result in later "mount --bind -oremount,rw" succeeding even if
the mount started off locked I realized that there are several
additional mount flags that should be locked and are not.
In particular MNT_NOSUID, MNT_NODEV, MNT_NOEXEC, and the atime
flags in addition to MNT_READONLY should all be locked. These
flags are all per superblock, can all be changed with MS_BIND,
and should not be changable if set by a more privileged user.
The following additions to the current logic are added in this patch.
- nosuid may not be clearable by a less privileged user.
- nodev may not be clearable by a less privielged user.
- noexec may not be clearable by a less privileged user.
- atime flags may not be changeable by a less privileged user.
The logic with atime is that always setting atime on access is a
global policy and backup software and auditing software could break if
atime bits are not updated (when they are configured to be updated),
and serious performance degradation could result (DOS attack) if atime
updates happen when they have been explicitly disabled. Therefore an
unprivileged user should not be able to mess with the atime bits set
by a more privileged user.
The additional restrictions are implemented with the addition of
MNT_LOCK_NOSUID, MNT_LOCK_NODEV, MNT_LOCK_NOEXEC, and MNT_LOCK_ATIME
mnt flags.
Taken together these changes and the fixes for MNT_LOCK_READONLY
should make it safe for an unprivileged user to create a user
namespace and to call "mount --bind -o remount,... ..." without
the danger of mount flags being changed maliciously.
Cc: [email protected]
Acked-by: Serge E. Hallyn <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]> | 9566d6742852c527bf5af38af5cbb878dad75705 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | do_new_mount | do_new_mount( struct path * path , const char * fstype , int flags , int mnt_flags , const char * name , void * data) | ['path', 'fstype', 'flags', 'mnt_flags', 'name', 'data'] | static int do_new_mount(struct path *path, const char *fstype, int flags,
int mnt_flags, const char *name, void *data)
{
struct file_system_type *type;
struct user_namespace *user_ns = current->nsproxy->mnt_ns->user_ns;
struct vfsmount *mnt;
int err;
if (!fstype)
return -EINVAL;
type = get_fs_type(fstype);
if (!type)
return -ENODEV;
if (user_ns != &init_user_ns) {
if (!(type->fs_flags & FS_USERNS_MOUNT)) {
put_filesystem(type);
return -EPERM;
}
/* Only in special cases allow devices from mounts
* created outside the initial user namespace.
*/
if (!(type->fs_flags & FS_USERNS_DEV_MOUNT)) {
flags |= MS_NODEV;
mnt_flags |= MNT_NODEV;
}
}
mnt = vfs_kern_mount(type, flags, name, data);
if (!IS_ERR(mnt) && (type->fs_flags & FS_HAS_SUBTYPE) &&
!mnt->mnt_sb->s_subtype)
mnt = fs_set_subtype(mnt, fstype);
put_filesystem(type);
if (IS_ERR(mnt))
return PTR_ERR(mnt);
err = do_add_mount(real_mount(mnt), path, mnt_flags);
if (err)
mntput(mnt);
return err;
} | 221 | True | 1 |
||
CVE-2014-7145 | False | False | False | False | AV:N/AC:L/Au:N/C:N/I:N/A:C | NETWORK | LOW | NONE | NONE | NONE | COMPLETE | 7.8 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'refsource': 'CONFIRM', 'tags': ['Release Notes', 'Vendor Advisory']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/09/22/4', 'name': '[oss-security] 20140922 Re: CVE request: [CIFS] Possible null ptr deref in SMB2_tcon / Linux kernel', 'refsource': 'MLIST', 'tags': ['Mailing List', 'Third Party Advisory']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=18f39e7be0121317550d03e267e3ebd4dbfbb3ce', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=18f39e7be0121317550d03e267e3ebd4dbfbb3ce', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/18f39e7be0121317550d03e267e3ebd4dbfbb3ce', 'name': 'https://github.com/torvalds/linux/commit/18f39e7be0121317550d03e267e3ebd4dbfbb3ce', 'refsource': 'CONFIRM', 'tags': ['Patch', 'Issue Tracking']}, {'url': 'http://www.securityfocus.com/bid/69867', 'name': '69867', 'refsource': 'BID', 'tags': ['Third Party Advisory', 'VDB Entry']}, {'url': 'http://www.ubuntu.com/usn/USN-2394-1', 'name': 'USN-2394-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': ['Third Party Advisory']}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | 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_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': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.2', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.1:*:*:*:*:*:*:*', 'cpe_name': []}]}, {'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The SMB2_tcon function in fs/cifs/smb2pdu.c in the Linux kernel before 3.16.3 allows remote CIFS servers to cause a denial of service (NULL pointer dereference and client system crash) or possibly have unspecified other impact by deleting the IPC$ share during resolution of DFS referrals.'}] | 2016-08-24T17:54Z | 2014-09-28T10:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Steve French | 2014-08-17 00:22:24-05:00 | [CIFS] Possible null ptr deref in SMB2_tcon
As Raphael Geissert pointed out, tcon_error_exit can dereference tcon
and there is one path in which tcon can be null.
Signed-off-by: Steve French <[email protected]>
CC: Stable <[email protected]> # v3.7+
Reported-by: Raphael Geissert <[email protected]> | 18f39e7be0121317550d03e267e3ebd4dbfbb3ce | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | SMB2_tcon | SMB2_tcon( const unsigned int xid , struct cifs_ses * ses , const char * tree , struct cifs_tcon * tcon , const struct nls_table * cp) | ['xid', 'ses', 'tree', 'tcon', 'cp'] | SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
struct cifs_tcon *tcon, const struct nls_table *cp)
{
struct smb2_tree_connect_req *req;
struct smb2_tree_connect_rsp *rsp = NULL;
struct kvec iov[2];
int rc = 0;
int resp_buftype;
int unc_path_len;
struct TCP_Server_Info *server;
__le16 *unc_path = NULL;
cifs_dbg(FYI, "TCON\n");
if ((ses->server) && tree)
server = ses->server;
else
return -EIO;
if (tcon && tcon->bad_network_name)
return -ENOENT;
unc_path = kmalloc(MAX_SHARENAME_LENGTH * 2, GFP_KERNEL);
if (unc_path == NULL)
return -ENOMEM;
unc_path_len = cifs_strtoUTF16(unc_path, tree, strlen(tree), cp) + 1;
unc_path_len *= 2;
if (unc_path_len < 2) {
kfree(unc_path);
return -EINVAL;
}
rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) &req);
if (rc) {
kfree(unc_path);
return rc;
}
if (tcon == NULL) {
/* since no tcon, smb2_init can not do this, so do here */
req->hdr.SessionId = ses->Suid;
/* if (ses->server->sec_mode & SECMODE_SIGN_REQUIRED)
req->hdr.Flags |= SMB2_FLAGS_SIGNED; */
}
iov[0].iov_base = (char *)req;
/* 4 for rfc1002 length field and 1 for pad */
iov[0].iov_len = get_rfc1002_length(req) + 4 - 1;
/* Testing shows that buffer offset must be at location of Buffer[0] */
req->PathOffset = cpu_to_le16(sizeof(struct smb2_tree_connect_req)
- 1 /* pad */ - 4 /* do not count rfc1001 len field */);
req->PathLength = cpu_to_le16(unc_path_len - 2);
iov[1].iov_base = unc_path;
iov[1].iov_len = unc_path_len;
inc_rfc1001_len(req, unc_path_len - 1 /* pad */);
rc = SendReceive2(xid, ses, iov, 2, &resp_buftype, 0);
rsp = (struct smb2_tree_connect_rsp *)iov[0].iov_base;
if (rc != 0) {
if (tcon) {
cifs_stats_fail_inc(tcon, SMB2_TREE_CONNECT_HE);
tcon->need_reconnect = true;
}
goto tcon_error_exit;
}
if (tcon == NULL) {
ses->ipc_tid = rsp->hdr.TreeId;
goto tcon_exit;
}
if (rsp->ShareType & SMB2_SHARE_TYPE_DISK)
cifs_dbg(FYI, "connection to disk share\n");
else if (rsp->ShareType & SMB2_SHARE_TYPE_PIPE) {
tcon->ipc = true;
cifs_dbg(FYI, "connection to pipe share\n");
} else if (rsp->ShareType & SMB2_SHARE_TYPE_PRINT) {
tcon->print = true;
cifs_dbg(FYI, "connection to printer\n");
} else {
cifs_dbg(VFS, "unknown share type %d\n", rsp->ShareType);
rc = -EOPNOTSUPP;
goto tcon_error_exit;
}
tcon->share_flags = le32_to_cpu(rsp->ShareFlags);
tcon->capabilities = rsp->Capabilities; /* we keep caps little endian */
tcon->maximal_access = le32_to_cpu(rsp->MaximalAccess);
tcon->tidStatus = CifsGood;
tcon->need_reconnect = false;
tcon->tid = rsp->hdr.TreeId;
strlcpy(tcon->treeName, tree, sizeof(tcon->treeName));
if ((rsp->Capabilities & SMB2_SHARE_CAP_DFS) &&
((tcon->share_flags & SHI1005_FLAGS_DFS) == 0))
cifs_dbg(VFS, "DFS capability contradicts DFS flag\n");
init_copy_chunk_defaults(tcon);
if (tcon->ses->server->ops->validate_negotiate)
rc = tcon->ses->server->ops->validate_negotiate(xid, tcon);
tcon_exit:
free_rsp_buf(resp_buftype, rsp);
kfree(unc_path);
return rc;
tcon_error_exit:
if (rsp->hdr.Status == STATUS_BAD_NETWORK_NAME) {
cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
tcon->bad_network_name = true;
}
goto tcon_exit;
} | 652 | True | 1 |
||
CVE-2014-3601 | False | False | False | False | AV:A/AC:H/Au:S/C:N/I:N/A:C | ADJACENT_NETWORK | HIGH | SINGLE | NONE | NONE | COMPLETE | 4.3 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1131951', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1131951', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7', 'name': 'https://github.com/torvalds/linux/commit/350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html', 'name': 'SUSE-SU-2015:0736', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/69489', 'name': '69489', 'refsource': 'BID', 'tags': []}, {'url': 'http://secunia.com/advisories/60830', 'name': '60830', 'refsource': 'SECUNIA', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95689', 'name': 'linux-kernel-cve20143601-dos(95689)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-189'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:opensuse:evergreen:11.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:suse:linux_enterprise_real_time_extension:11.0:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:suse_linux_enterprise_server:11:*:*:*:*:*:*:*', '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': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages.'}] | 2018-10-30T16:27Z | 2014-09-01T01:55Z | Numeric Errors | Weaknesses in this category are related to improper calculation or conversion of numbers. | https://cwe.mitre.org/data/definitions/189.html | 1 | Michael S. Tsirkin | 2014-08-19 19:14:50+08:00 | kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
The third parameter of kvm_iommu_put_pages is wrong,
It should be 'gfn - slot->base_gfn'.
By making gfn very large, malicious guest or userspace can cause kvm to
go to this error path, and subsequently to pass a huge value as size.
Alternatively if gfn is small, then pages would be pinned but never
unpinned, causing host memory leak and local DOS.
Passing a reasonable but large value could be the most dangerous case,
because it would unpin a page that should have stayed pinned, and thus
allow the device to DMA into arbitrary memory. However, this cannot
happen because of the condition that can trigger the error:
- out of memory (where you can't allocate even a single page)
should not be possible for the attacker to trigger
- when exceeding the iommu's address space, guest pages after gfn
will also exceed the iommu's address space, and inside
kvm_iommu_put_pages() the iommu_iova_to_phys() will fail. The
page thus would not be unpinned at all.
Reported-by: Jack Morgenstein <[email protected]>
Cc: [email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]> | 350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | kvm_iommu_map_pages | kvm_iommu_map_pages( struct kvm * kvm , struct kvm_memory_slot * slot) | ['kvm', 'slot'] | int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot)
{
gfn_t gfn, end_gfn;
pfn_t pfn;
int r = 0;
struct iommu_domain *domain = kvm->arch.iommu_domain;
int flags;
/* check if iommu exists and in use */
if (!domain)
return 0;
gfn = slot->base_gfn;
end_gfn = gfn + slot->npages;
flags = IOMMU_READ;
if (!(slot->flags & KVM_MEM_READONLY))
flags |= IOMMU_WRITE;
if (!kvm->arch.iommu_noncoherent)
flags |= IOMMU_CACHE;
while (gfn < end_gfn) {
unsigned long page_size;
/* Check if already mapped */
if (iommu_iova_to_phys(domain, gfn_to_gpa(gfn))) {
gfn += 1;
continue;
}
/* Get the page size we could use to map */
page_size = kvm_host_page_size(kvm, gfn);
/* Make sure the page_size does not exceed the memslot */
while ((gfn + (page_size >> PAGE_SHIFT)) > end_gfn)
page_size >>= 1;
/* Make sure gfn is aligned to the page size we want to map */
while ((gfn << PAGE_SHIFT) & (page_size - 1))
page_size >>= 1;
/* Make sure hva is aligned to the page size we want to map */
while (__gfn_to_hva_memslot(slot, gfn) & (page_size - 1))
page_size >>= 1;
/*
* Pin all pages we are about to map in memory. This is
* important because we unmap and unpin in 4kb steps later.
*/
pfn = kvm_pin_pages(slot, gfn, page_size);
if (is_error_noslot_pfn(pfn)) {
gfn += 1;
continue;
}
/* Map into IO address space */
r = iommu_map(domain, gfn_to_gpa(gfn), pfn_to_hpa(pfn),
page_size, flags);
if (r) {
printk(KERN_ERR "kvm_iommu_map_address:"
"iommu failed to map pfn=%llx\n", pfn);
goto unmap_pages;
}
gfn += page_size >> PAGE_SHIFT;
}
return 0;
unmap_pages:
kvm_iommu_put_pages(kvm, slot->base_gfn, gfn);
return r;
} | 284 | True | 1 |
||
CVE-2014-3601 | False | False | False | False | AV:A/AC:H/Au:S/C:N/I:N/A:C | ADJACENT_NETWORK | HIGH | SINGLE | NONE | NONE | COMPLETE | 4.3 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1131951', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1131951', 'refsource': 'CONFIRM', 'tags': ['Issue Tracking']}, {'url': 'https://github.com/torvalds/linux/commit/350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7', 'name': 'https://github.com/torvalds/linux/commit/350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html', 'name': 'SUSE-SU-2015:0736', 'refsource': 'SUSE', 'tags': ['Third Party Advisory']}, {'url': 'http://www.securityfocus.com/bid/69489', 'name': '69489', 'refsource': 'BID', 'tags': []}, {'url': 'http://secunia.com/advisories/60830', 'name': '60830', 'refsource': 'SECUNIA', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95689', 'name': 'linux-kernel-cve20143601-dos(95689)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-189'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:opensuse:evergreen:11.4:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:a:suse:linux_enterprise_real_time_extension:11.0:sp3:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:suse:suse_linux_enterprise_server:11:*:*:*:*:*:*:*', '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': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages.'}] | 2018-10-30T16:27Z | 2014-09-01T01:55Z | Numeric Errors | Weaknesses in this category are related to improper calculation or conversion of numbers. | https://cwe.mitre.org/data/definitions/189.html | 1 | Michael S. Tsirkin | 2014-08-19 19:14:50+08:00 | kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
The third parameter of kvm_iommu_put_pages is wrong,
It should be 'gfn - slot->base_gfn'.
By making gfn very large, malicious guest or userspace can cause kvm to
go to this error path, and subsequently to pass a huge value as size.
Alternatively if gfn is small, then pages would be pinned but never
unpinned, causing host memory leak and local DOS.
Passing a reasonable but large value could be the most dangerous case,
because it would unpin a page that should have stayed pinned, and thus
allow the device to DMA into arbitrary memory. However, this cannot
happen because of the condition that can trigger the error:
- out of memory (where you can't allocate even a single page)
should not be possible for the attacker to trigger
- when exceeding the iommu's address space, guest pages after gfn
will also exceed the iommu's address space, and inside
kvm_iommu_put_pages() the iommu_iova_to_phys() will fail. The
page thus would not be unpinned at all.
Reported-by: Jack Morgenstein <[email protected]>
Cc: [email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]> | 350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | kvm_unpin_pages | kvm_unpin_pages( struct kvm * kvm , pfn_t pfn , unsigned long npages) | ['kvm', 'pfn', 'npages'] | static void kvm_unpin_pages(struct kvm *kvm, pfn_t pfn, unsigned long npages)
{
unsigned long i;
for (i = 0; i < npages; ++i)
kvm_release_pfn_clean(pfn + i);
} | 40 | True | 1 |
||
CVE-2014-5471 | False | False | False | False | AV:L/AC:H/Au:N/C:N/I:N/A:C | LOCAL | HIGH | NONE | NONE | NONE | COMPLETE | 4.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/08/27/1', 'name': '[oss-security] 20140827 Re: CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2355-1', 'name': 'USN-2355-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2354-1', 'name': 'USN-2354-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0695.html', 'name': 'RHSA-2015:0695', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0782.html', 'name': 'RHSA-2015:0782', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0803.html', 'name': 'RHSA-2015:0803', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69396', 'name': '69396', 'refsource': 'BID', 'tags': []}, {'url': 'http://seclists.org/oss-sec/2014/q3/450', 'name': '[oss-security] 20140826 CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95481', 'name': 'linux-kernel-isofs-bo(95481)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Stack consumption vulnerability in the parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (uncontrolled recursion, and system crash or reboot) via a crafted iso9660 image with a CL entry referring to a directory entry that has a CL entry.'}] | 2017-09-08T01:29Z | 2014-09-01T01:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Jan Kara | 2014-08-17 11:49:57+02:00 | isofs: Fix unbounded recursion when processing relocated directories
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: [email protected]
Reported-by: Chris Evans <[email protected]>
Signed-off-by: Jan Kara <[email protected]> | 410dd3cf4c9b36f27ed4542ee18b1af5e68645a4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | isofs_iget | isofs_iget( struct super_block * sb , unsigned long block , unsigned long offset) | ['sb', 'block', 'offset'] | struct inode *isofs_iget(struct super_block *sb,
unsigned long block,
unsigned long offset)
{
unsigned long hashval;
struct inode *inode;
struct isofs_iget5_callback_data data;
long ret;
if (offset >= 1ul << sb->s_blocksize_bits)
return ERR_PTR(-EINVAL);
data.block = block;
data.offset = offset;
hashval = (block << sb->s_blocksize_bits) | offset;
inode = iget5_locked(sb, hashval, &isofs_iget5_test,
&isofs_iget5_set, &data);
if (!inode)
return ERR_PTR(-ENOMEM);
if (inode->i_state & I_NEW) {
ret = isofs_read_inode(inode);
if (ret < 0) {
iget_failed(inode);
inode = ERR_PTR(ret);
} else {
unlock_new_inode(inode);
}
}
return inode;
} | 154 | True | 1 |
||
CVE-2014-5472 | False | False | False | False | AV:L/AC:H/Au:N/C:N/I:N/A:C | LOCAL | HIGH | NONE | NONE | NONE | COMPLETE | 4.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/08/27/1', 'name': '[oss-security] 20140827 Re: CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'refsource': 'MISC', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2355-1', 'name': 'USN-2355-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2354-1', 'name': 'USN-2354-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0695.html', 'name': 'RHSA-2015:0695', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0782.html', 'name': 'RHSA-2015:0782', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0803.html', 'name': 'RHSA-2015:0803', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69428', 'name': '69428', 'refsource': 'BID', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95556', 'name': 'linux-kernel-cve20145472-dos(95556)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (unkillable mount process) via a crafted iso9660 image with a self-referential CL entry.'}] | 2017-09-08T01:29Z | 2014-09-01T01:55Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Jan Kara | 2014-08-17 11:49:57+02:00 | isofs: Fix unbounded recursion when processing relocated directories
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: [email protected]
Reported-by: Chris Evans <[email protected]>
Signed-off-by: Jan Kara <[email protected]> | 410dd3cf4c9b36f27ed4542ee18b1af5e68645a4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | isofs_iget | isofs_iget( struct super_block * sb , unsigned long block , unsigned long offset) | ['sb', 'block', 'offset'] | struct inode *isofs_iget(struct super_block *sb,
unsigned long block,
unsigned long offset)
{
unsigned long hashval;
struct inode *inode;
struct isofs_iget5_callback_data data;
long ret;
if (offset >= 1ul << sb->s_blocksize_bits)
return ERR_PTR(-EINVAL);
data.block = block;
data.offset = offset;
hashval = (block << sb->s_blocksize_bits) | offset;
inode = iget5_locked(sb, hashval, &isofs_iget5_test,
&isofs_iget5_set, &data);
if (!inode)
return ERR_PTR(-ENOMEM);
if (inode->i_state & I_NEW) {
ret = isofs_read_inode(inode);
if (ret < 0) {
iget_failed(inode);
inode = ERR_PTR(ret);
} else {
unlock_new_inode(inode);
}
}
return inode;
} | 154 | True | 1 |
|
CVE-2014-5471 | False | False | False | False | AV:L/AC:H/Au:N/C:N/I:N/A:C | LOCAL | HIGH | NONE | NONE | NONE | COMPLETE | 4.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/08/27/1', 'name': '[oss-security] 20140827 Re: CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2355-1', 'name': 'USN-2355-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2354-1', 'name': 'USN-2354-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0695.html', 'name': 'RHSA-2015:0695', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0782.html', 'name': 'RHSA-2015:0782', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0803.html', 'name': 'RHSA-2015:0803', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69396', 'name': '69396', 'refsource': 'BID', 'tags': []}, {'url': 'http://seclists.org/oss-sec/2014/q3/450', 'name': '[oss-security] 20140826 CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95481', 'name': 'linux-kernel-isofs-bo(95481)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Stack consumption vulnerability in the parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (uncontrolled recursion, and system crash or reboot) via a crafted iso9660 image with a CL entry referring to a directory entry that has a CL entry.'}] | 2017-09-08T01:29Z | 2014-09-01T01:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Jan Kara | 2014-08-17 11:49:57+02:00 | isofs: Fix unbounded recursion when processing relocated directories
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: [email protected]
Reported-by: Chris Evans <[email protected]>
Signed-off-by: Jan Kara <[email protected]> | 410dd3cf4c9b36f27ed4542ee18b1af5e68645a4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | isofs_read_inode | isofs_read_inode( struct inode * inode) | ['inode'] | static int isofs_read_inode(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
struct isofs_sb_info *sbi = ISOFS_SB(sb);
unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
unsigned long block;
int high_sierra = sbi->s_high_sierra;
struct buffer_head *bh = NULL;
struct iso_directory_record *de;
struct iso_directory_record *tmpde = NULL;
unsigned int de_len;
unsigned long offset;
struct iso_inode_info *ei = ISOFS_I(inode);
int ret = -EIO;
block = ei->i_iget5_block;
bh = sb_bread(inode->i_sb, block);
if (!bh)
goto out_badread;
offset = ei->i_iget5_offset;
de = (struct iso_directory_record *) (bh->b_data + offset);
de_len = *(unsigned char *) de;
if (offset + de_len > bufsize) {
int frag1 = bufsize - offset;
tmpde = kmalloc(de_len, GFP_KERNEL);
if (tmpde == NULL) {
printk(KERN_INFO "%s: out of memory\n", __func__);
ret = -ENOMEM;
goto fail;
}
memcpy(tmpde, bh->b_data + offset, frag1);
brelse(bh);
bh = sb_bread(inode->i_sb, ++block);
if (!bh)
goto out_badread;
memcpy((char *)tmpde+frag1, bh->b_data, de_len - frag1);
de = tmpde;
}
inode->i_ino = isofs_get_ino(ei->i_iget5_block,
ei->i_iget5_offset,
ISOFS_BUFFER_BITS(inode));
/* Assume it is a normal-format file unless told otherwise */
ei->i_file_format = isofs_file_normal;
if (de->flags[-high_sierra] & 2) {
if (sbi->s_dmode != ISOFS_INVALID_MODE)
inode->i_mode = S_IFDIR | sbi->s_dmode;
else
inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
set_nlink(inode, 1); /*
* Set to 1. We know there are 2, but
* the find utility tries to optimize
* if it is 2, and it screws up. It is
* easier to give 1 which tells find to
* do it the hard way.
*/
} else {
if (sbi->s_fmode != ISOFS_INVALID_MODE) {
inode->i_mode = S_IFREG | sbi->s_fmode;
} else {
/*
* Set default permissions: r-x for all. The disc
* could be shared with DOS machines so virtually
* anything could be a valid executable.
*/
inode->i_mode = S_IFREG | S_IRUGO | S_IXUGO;
}
set_nlink(inode, 1);
}
inode->i_uid = sbi->s_uid;
inode->i_gid = sbi->s_gid;
inode->i_blocks = 0;
ei->i_format_parm[0] = 0;
ei->i_format_parm[1] = 0;
ei->i_format_parm[2] = 0;
ei->i_section_size = isonum_733(de->size);
if (de->flags[-high_sierra] & 0x80) {
ret = isofs_read_level3_size(inode);
if (ret < 0)
goto fail;
ret = -EIO;
} else {
ei->i_next_section_block = 0;
ei->i_next_section_offset = 0;
inode->i_size = isonum_733(de->size);
}
/*
* Some dipshit decided to store some other bit of information
* in the high byte of the file length. Truncate size in case
* this CDROM was mounted with the cruft option.
*/
if (sbi->s_cruft)
inode->i_size &= 0x00ffffff;
if (de->interleave[0]) {
printk(KERN_DEBUG "ISOFS: Interleaved files not (yet) supported.\n");
inode->i_size = 0;
}
/* I have no idea what file_unit_size is used for, so
we will flag it for now */
if (de->file_unit_size[0] != 0) {
printk(KERN_DEBUG "ISOFS: File unit size != 0 for ISO file (%ld).\n",
inode->i_ino);
}
/* I have no idea what other flag bits are used for, so
we will flag it for now */
#ifdef DEBUG
if((de->flags[-high_sierra] & ~2)!= 0){
printk(KERN_DEBUG "ISOFS: Unusual flag settings for ISO file "
"(%ld %x).\n",
inode->i_ino, de->flags[-high_sierra]);
}
#endif
inode->i_mtime.tv_sec =
inode->i_atime.tv_sec =
inode->i_ctime.tv_sec = iso_date(de->date, high_sierra);
inode->i_mtime.tv_nsec =
inode->i_atime.tv_nsec =
inode->i_ctime.tv_nsec = 0;
ei->i_first_extent = (isonum_733(de->extent) +
isonum_711(de->ext_attr_length));
/* Set the number of blocks for stat() - should be done before RR */
inode->i_blocks = (inode->i_size + 511) >> 9;
/*
* Now test for possible Rock Ridge extensions which will override
* some of these numbers in the inode structure.
*/
if (!high_sierra) {
parse_rock_ridge_inode(de, inode);
/* if we want uid/gid set, override the rock ridge setting */
if (sbi->s_uid_set)
inode->i_uid = sbi->s_uid;
if (sbi->s_gid_set)
inode->i_gid = sbi->s_gid;
}
/* Now set final access rights if overriding rock ridge setting */
if (S_ISDIR(inode->i_mode) && sbi->s_overriderockperm &&
sbi->s_dmode != ISOFS_INVALID_MODE)
inode->i_mode = S_IFDIR | sbi->s_dmode;
if (S_ISREG(inode->i_mode) && sbi->s_overriderockperm &&
sbi->s_fmode != ISOFS_INVALID_MODE)
inode->i_mode = S_IFREG | sbi->s_fmode;
/* Install the inode operations vector */
if (S_ISREG(inode->i_mode)) {
inode->i_fop = &generic_ro_fops;
switch (ei->i_file_format) {
#ifdef CONFIG_ZISOFS
case isofs_file_compressed:
inode->i_data.a_ops = &zisofs_aops;
break;
#endif
default:
inode->i_data.a_ops = &isofs_aops;
break;
}
} else if (S_ISDIR(inode->i_mode)) {
inode->i_op = &isofs_dir_inode_operations;
inode->i_fop = &isofs_dir_operations;
} else if (S_ISLNK(inode->i_mode)) {
inode->i_op = &page_symlink_inode_operations;
inode->i_data.a_ops = &isofs_symlink_aops;
} else
/* XXX - parse_rock_ridge_inode() had already set i_rdev. */
init_special_inode(inode, inode->i_mode, inode->i_rdev);
ret = 0;
out:
kfree(tmpde);
if (bh)
brelse(bh);
return ret;
out_badread:
printk(KERN_WARNING "ISOFS: unable to read i-node block\n");
fail:
goto out;
} | 932 | True | 1 |
||
CVE-2014-5472 | False | False | False | False | AV:L/AC:H/Au:N/C:N/I:N/A:C | LOCAL | HIGH | NONE | NONE | NONE | COMPLETE | 4.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/08/27/1', 'name': '[oss-security] 20140827 Re: CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'refsource': 'MISC', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2355-1', 'name': 'USN-2355-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2354-1', 'name': 'USN-2354-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0695.html', 'name': 'RHSA-2015:0695', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0782.html', 'name': 'RHSA-2015:0782', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0803.html', 'name': 'RHSA-2015:0803', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69428', 'name': '69428', 'refsource': 'BID', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95556', 'name': 'linux-kernel-cve20145472-dos(95556)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (unkillable mount process) via a crafted iso9660 image with a self-referential CL entry.'}] | 2017-09-08T01:29Z | 2014-09-01T01:55Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Jan Kara | 2014-08-17 11:49:57+02:00 | isofs: Fix unbounded recursion when processing relocated directories
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: [email protected]
Reported-by: Chris Evans <[email protected]>
Signed-off-by: Jan Kara <[email protected]> | 410dd3cf4c9b36f27ed4542ee18b1af5e68645a4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | isofs_read_inode | isofs_read_inode( struct inode * inode) | ['inode'] | static int isofs_read_inode(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
struct isofs_sb_info *sbi = ISOFS_SB(sb);
unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
unsigned long block;
int high_sierra = sbi->s_high_sierra;
struct buffer_head *bh = NULL;
struct iso_directory_record *de;
struct iso_directory_record *tmpde = NULL;
unsigned int de_len;
unsigned long offset;
struct iso_inode_info *ei = ISOFS_I(inode);
int ret = -EIO;
block = ei->i_iget5_block;
bh = sb_bread(inode->i_sb, block);
if (!bh)
goto out_badread;
offset = ei->i_iget5_offset;
de = (struct iso_directory_record *) (bh->b_data + offset);
de_len = *(unsigned char *) de;
if (offset + de_len > bufsize) {
int frag1 = bufsize - offset;
tmpde = kmalloc(de_len, GFP_KERNEL);
if (tmpde == NULL) {
printk(KERN_INFO "%s: out of memory\n", __func__);
ret = -ENOMEM;
goto fail;
}
memcpy(tmpde, bh->b_data + offset, frag1);
brelse(bh);
bh = sb_bread(inode->i_sb, ++block);
if (!bh)
goto out_badread;
memcpy((char *)tmpde+frag1, bh->b_data, de_len - frag1);
de = tmpde;
}
inode->i_ino = isofs_get_ino(ei->i_iget5_block,
ei->i_iget5_offset,
ISOFS_BUFFER_BITS(inode));
/* Assume it is a normal-format file unless told otherwise */
ei->i_file_format = isofs_file_normal;
if (de->flags[-high_sierra] & 2) {
if (sbi->s_dmode != ISOFS_INVALID_MODE)
inode->i_mode = S_IFDIR | sbi->s_dmode;
else
inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
set_nlink(inode, 1); /*
* Set to 1. We know there are 2, but
* the find utility tries to optimize
* if it is 2, and it screws up. It is
* easier to give 1 which tells find to
* do it the hard way.
*/
} else {
if (sbi->s_fmode != ISOFS_INVALID_MODE) {
inode->i_mode = S_IFREG | sbi->s_fmode;
} else {
/*
* Set default permissions: r-x for all. The disc
* could be shared with DOS machines so virtually
* anything could be a valid executable.
*/
inode->i_mode = S_IFREG | S_IRUGO | S_IXUGO;
}
set_nlink(inode, 1);
}
inode->i_uid = sbi->s_uid;
inode->i_gid = sbi->s_gid;
inode->i_blocks = 0;
ei->i_format_parm[0] = 0;
ei->i_format_parm[1] = 0;
ei->i_format_parm[2] = 0;
ei->i_section_size = isonum_733(de->size);
if (de->flags[-high_sierra] & 0x80) {
ret = isofs_read_level3_size(inode);
if (ret < 0)
goto fail;
ret = -EIO;
} else {
ei->i_next_section_block = 0;
ei->i_next_section_offset = 0;
inode->i_size = isonum_733(de->size);
}
/*
* Some dipshit decided to store some other bit of information
* in the high byte of the file length. Truncate size in case
* this CDROM was mounted with the cruft option.
*/
if (sbi->s_cruft)
inode->i_size &= 0x00ffffff;
if (de->interleave[0]) {
printk(KERN_DEBUG "ISOFS: Interleaved files not (yet) supported.\n");
inode->i_size = 0;
}
/* I have no idea what file_unit_size is used for, so
we will flag it for now */
if (de->file_unit_size[0] != 0) {
printk(KERN_DEBUG "ISOFS: File unit size != 0 for ISO file (%ld).\n",
inode->i_ino);
}
/* I have no idea what other flag bits are used for, so
we will flag it for now */
#ifdef DEBUG
if((de->flags[-high_sierra] & ~2)!= 0){
printk(KERN_DEBUG "ISOFS: Unusual flag settings for ISO file "
"(%ld %x).\n",
inode->i_ino, de->flags[-high_sierra]);
}
#endif
inode->i_mtime.tv_sec =
inode->i_atime.tv_sec =
inode->i_ctime.tv_sec = iso_date(de->date, high_sierra);
inode->i_mtime.tv_nsec =
inode->i_atime.tv_nsec =
inode->i_ctime.tv_nsec = 0;
ei->i_first_extent = (isonum_733(de->extent) +
isonum_711(de->ext_attr_length));
/* Set the number of blocks for stat() - should be done before RR */
inode->i_blocks = (inode->i_size + 511) >> 9;
/*
* Now test for possible Rock Ridge extensions which will override
* some of these numbers in the inode structure.
*/
if (!high_sierra) {
parse_rock_ridge_inode(de, inode);
/* if we want uid/gid set, override the rock ridge setting */
if (sbi->s_uid_set)
inode->i_uid = sbi->s_uid;
if (sbi->s_gid_set)
inode->i_gid = sbi->s_gid;
}
/* Now set final access rights if overriding rock ridge setting */
if (S_ISDIR(inode->i_mode) && sbi->s_overriderockperm &&
sbi->s_dmode != ISOFS_INVALID_MODE)
inode->i_mode = S_IFDIR | sbi->s_dmode;
if (S_ISREG(inode->i_mode) && sbi->s_overriderockperm &&
sbi->s_fmode != ISOFS_INVALID_MODE)
inode->i_mode = S_IFREG | sbi->s_fmode;
/* Install the inode operations vector */
if (S_ISREG(inode->i_mode)) {
inode->i_fop = &generic_ro_fops;
switch (ei->i_file_format) {
#ifdef CONFIG_ZISOFS
case isofs_file_compressed:
inode->i_data.a_ops = &zisofs_aops;
break;
#endif
default:
inode->i_data.a_ops = &isofs_aops;
break;
}
} else if (S_ISDIR(inode->i_mode)) {
inode->i_op = &isofs_dir_inode_operations;
inode->i_fop = &isofs_dir_operations;
} else if (S_ISLNK(inode->i_mode)) {
inode->i_op = &page_symlink_inode_operations;
inode->i_data.a_ops = &isofs_symlink_aops;
} else
/* XXX - parse_rock_ridge_inode() had already set i_rdev. */
init_special_inode(inode, inode->i_mode, inode->i_rdev);
ret = 0;
out:
kfree(tmpde);
if (bh)
brelse(bh);
return ret;
out_badread:
printk(KERN_WARNING "ISOFS: unable to read i-node block\n");
fail:
goto out;
} | 932 | True | 1 |
|
CVE-2014-5471 | False | False | False | False | AV:L/AC:H/Au:N/C:N/I:N/A:C | LOCAL | HIGH | NONE | NONE | NONE | COMPLETE | 4.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/08/27/1', 'name': '[oss-security] 20140827 Re: CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2355-1', 'name': 'USN-2355-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2354-1', 'name': 'USN-2354-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0695.html', 'name': 'RHSA-2015:0695', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0782.html', 'name': 'RHSA-2015:0782', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0803.html', 'name': 'RHSA-2015:0803', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69396', 'name': '69396', 'refsource': 'BID', 'tags': []}, {'url': 'http://seclists.org/oss-sec/2014/q3/450', 'name': '[oss-security] 20140826 CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95481', 'name': 'linux-kernel-isofs-bo(95481)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Stack consumption vulnerability in the parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (uncontrolled recursion, and system crash or reboot) via a crafted iso9660 image with a CL entry referring to a directory entry that has a CL entry.'}] | 2017-09-08T01:29Z | 2014-09-01T01:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Jan Kara | 2014-08-17 11:49:57+02:00 | isofs: Fix unbounded recursion when processing relocated directories
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: [email protected]
Reported-by: Chris Evans <[email protected]>
Signed-off-by: Jan Kara <[email protected]> | 410dd3cf4c9b36f27ed4542ee18b1af5e68645a4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | parse_rock_ridge_inode | parse_rock_ridge_inode( struct iso_directory_record * de , struct inode * inode) | ['de', 'inode'] | int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode)
{
int result = parse_rock_ridge_inode_internal(de, inode, 0);
/*
* if rockridge flag was reset and we didn't look for attributes
* behind eventual XA attributes, have a look there
*/
if ((ISOFS_SB(inode->i_sb)->s_rock_offset == -1)
&& (ISOFS_SB(inode->i_sb)->s_rock == 2)) {
result = parse_rock_ridge_inode_internal(de, inode, 14);
}
return result;
} | 71 | True | 1 |
||
CVE-2014-5472 | False | False | False | False | AV:L/AC:H/Au:N/C:N/I:N/A:C | LOCAL | HIGH | NONE | NONE | NONE | COMPLETE | 4.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/08/27/1', 'name': '[oss-security] 20140827 Re: CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'refsource': 'MISC', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2355-1', 'name': 'USN-2355-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2354-1', 'name': 'USN-2354-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0695.html', 'name': 'RHSA-2015:0695', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0782.html', 'name': 'RHSA-2015:0782', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0803.html', 'name': 'RHSA-2015:0803', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69428', 'name': '69428', 'refsource': 'BID', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95556', 'name': 'linux-kernel-cve20145472-dos(95556)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (unkillable mount process) via a crafted iso9660 image with a self-referential CL entry.'}] | 2017-09-08T01:29Z | 2014-09-01T01:55Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Jan Kara | 2014-08-17 11:49:57+02:00 | isofs: Fix unbounded recursion when processing relocated directories
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: [email protected]
Reported-by: Chris Evans <[email protected]>
Signed-off-by: Jan Kara <[email protected]> | 410dd3cf4c9b36f27ed4542ee18b1af5e68645a4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | parse_rock_ridge_inode | parse_rock_ridge_inode( struct iso_directory_record * de , struct inode * inode) | ['de', 'inode'] | int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode)
{
int result = parse_rock_ridge_inode_internal(de, inode, 0);
/*
* if rockridge flag was reset and we didn't look for attributes
* behind eventual XA attributes, have a look there
*/
if ((ISOFS_SB(inode->i_sb)->s_rock_offset == -1)
&& (ISOFS_SB(inode->i_sb)->s_rock == 2)) {
result = parse_rock_ridge_inode_internal(de, inode, 14);
}
return result;
} | 71 | True | 1 |
|
CVE-2014-5471 | False | False | False | False | AV:L/AC:H/Au:N/C:N/I:N/A:C | LOCAL | HIGH | NONE | NONE | NONE | COMPLETE | 4.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/08/27/1', 'name': '[oss-security] 20140827 Re: CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'refsource': 'MISC', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2355-1', 'name': 'USN-2355-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2354-1', 'name': 'USN-2354-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0695.html', 'name': 'RHSA-2015:0695', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0782.html', 'name': 'RHSA-2015:0782', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0803.html', 'name': 'RHSA-2015:0803', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69396', 'name': '69396', 'refsource': 'BID', 'tags': []}, {'url': 'http://seclists.org/oss-sec/2014/q3/450', 'name': '[oss-security] 20140826 CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95481', 'name': 'linux-kernel-isofs-bo(95481)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Stack consumption vulnerability in the parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (uncontrolled recursion, and system crash or reboot) via a crafted iso9660 image with a CL entry referring to a directory entry that has a CL entry.'}] | 2017-09-08T01:29Z | 2014-09-01T01:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Jan Kara | 2014-08-17 11:49:57+02:00 | isofs: Fix unbounded recursion when processing relocated directories
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: [email protected]
Reported-by: Chris Evans <[email protected]>
Signed-off-by: Jan Kara <[email protected]> | 410dd3cf4c9b36f27ed4542ee18b1af5e68645a4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | parse_rock_ridge_inode_internal | parse_rock_ridge_inode_internal( struct iso_directory_record * de , struct inode * inode , int regard_xa) | ['de', 'inode', 'regard_xa'] | parse_rock_ridge_inode_internal(struct iso_directory_record *de,
struct inode *inode, int regard_xa)
{
int symlink_len = 0;
int cnt, sig;
struct inode *reloc;
struct rock_ridge *rr;
int rootflag;
struct rock_state rs;
int ret = 0;
if (!ISOFS_SB(inode->i_sb)->s_rock)
return 0;
init_rock_state(&rs, inode);
setup_rock_ridge(de, inode, &rs);
if (regard_xa) {
rs.chr += 14;
rs.len -= 14;
if (rs.len < 0)
rs.len = 0;
}
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) {
#ifndef CONFIG_ZISOFS /* No flag for SF or ZF */
case SIG('R', 'R'):
if ((rr->u.RR.flags[0] &
(RR_PX | RR_TF | RR_SL | RR_CL)) == 0)
goto out;
break;
#endif
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('E', 'R'):
ISOFS_SB(inode->i_sb)->s_rock = 1;
printk(KERN_DEBUG "ISO 9660 Extensions: ");
{
int p;
for (p = 0; p < rr->u.ER.len_id; p++)
printk("%c", rr->u.ER.data[p]);
}
printk("\n");
break;
case SIG('P', 'X'):
inode->i_mode = isonum_733(rr->u.PX.mode);
set_nlink(inode, isonum_733(rr->u.PX.n_links));
i_uid_write(inode, isonum_733(rr->u.PX.uid));
i_gid_write(inode, isonum_733(rr->u.PX.gid));
break;
case SIG('P', 'N'):
{
int high, low;
high = isonum_733(rr->u.PN.dev_high);
low = isonum_733(rr->u.PN.dev_low);
/*
* The Rock Ridge standard specifies that if
* sizeof(dev_t) <= 4, then the high field is
* unused, and the device number is completely
* stored in the low field. Some writers may
* ignore this subtlety,
* and as a result we test to see if the entire
* device number is
* stored in the low field, and use that.
*/
if ((low & ~0xff) && high == 0) {
inode->i_rdev =
MKDEV(low >> 8, low & 0xff);
} else {
inode->i_rdev =
MKDEV(high, low);
}
}
break;
case SIG('T', 'F'):
/*
* Some RRIP writers incorrectly place ctime in the
* TF_CREATE field. Try to handle this correctly for
* either case.
*/
/* Rock ridge never appears on a High Sierra disk */
cnt = 0;
if (rr->u.TF.flags & TF_CREATE) {
inode->i_ctime.tv_sec =
iso_date(rr->u.TF.times[cnt++].time,
0);
inode->i_ctime.tv_nsec = 0;
}
if (rr->u.TF.flags & TF_MODIFY) {
inode->i_mtime.tv_sec =
iso_date(rr->u.TF.times[cnt++].time,
0);
inode->i_mtime.tv_nsec = 0;
}
if (rr->u.TF.flags & TF_ACCESS) {
inode->i_atime.tv_sec =
iso_date(rr->u.TF.times[cnt++].time,
0);
inode->i_atime.tv_nsec = 0;
}
if (rr->u.TF.flags & TF_ATTRIBUTES) {
inode->i_ctime.tv_sec =
iso_date(rr->u.TF.times[cnt++].time,
0);
inode->i_ctime.tv_nsec = 0;
}
break;
case SIG('S', 'L'):
{
int slen;
struct SL_component *slp;
struct SL_component *oldslp;
slen = rr->len - 5;
slp = &rr->u.SL.link;
inode->i_size = symlink_len;
while (slen > 1) {
rootflag = 0;
switch (slp->flags & ~1) {
case 0:
inode->i_size +=
slp->len;
break;
case 2:
inode->i_size += 1;
break;
case 4:
inode->i_size += 2;
break;
case 8:
rootflag = 1;
inode->i_size += 1;
break;
default:
printk("Symlink component flag "
"not implemented\n");
}
slen -= slp->len + 2;
oldslp = slp;
slp = (struct SL_component *)
(((char *)slp) + slp->len + 2);
if (slen < 2) {
if (((rr->u.SL.
flags & 1) != 0)
&&
((oldslp->
flags & 1) == 0))
inode->i_size +=
1;
break;
}
/*
* If this component record isn't
* continued, then append a '/'.
*/
if (!rootflag
&& (oldslp->flags & 1) == 0)
inode->i_size += 1;
}
}
symlink_len = inode->i_size;
break;
case SIG('R', 'E'):
printk(KERN_WARNING "Attempt to read inode for "
"relocated directory\n");
goto out;
case SIG('C', 'L'):
ISOFS_I(inode)->i_first_extent =
isonum_733(rr->u.CL.location);
reloc =
isofs_iget(inode->i_sb,
ISOFS_I(inode)->i_first_extent,
0);
if (IS_ERR(reloc)) {
ret = PTR_ERR(reloc);
goto out;
}
inode->i_mode = reloc->i_mode;
set_nlink(inode, reloc->i_nlink);
inode->i_uid = reloc->i_uid;
inode->i_gid = reloc->i_gid;
inode->i_rdev = reloc->i_rdev;
inode->i_size = reloc->i_size;
inode->i_blocks = reloc->i_blocks;
inode->i_atime = reloc->i_atime;
inode->i_ctime = reloc->i_ctime;
inode->i_mtime = reloc->i_mtime;
iput(reloc);
break;
#ifdef CONFIG_ZISOFS
case SIG('Z', 'F'): {
int algo;
if (ISOFS_SB(inode->i_sb)->s_nocompress)
break;
algo = isonum_721(rr->u.ZF.algorithm);
if (algo == SIG('p', 'z')) {
int block_shift =
isonum_711(&rr->u.ZF.parms[1]);
if (block_shift > 17) {
printk(KERN_WARNING "isofs: "
"Can't handle ZF block "
"size of 2^%d\n",
block_shift);
} else {
/*
* Note: we don't change
* i_blocks here
*/
ISOFS_I(inode)->i_file_format =
isofs_file_compressed;
/*
* Parameters to compression
* algorithm (header size,
* block size)
*/
ISOFS_I(inode)->i_format_parm[0] =
isonum_711(&rr->u.ZF.parms[0]);
ISOFS_I(inode)->i_format_parm[1] =
isonum_711(&rr->u.ZF.parms[1]);
inode->i_size =
isonum_733(rr->u.ZF.
real_size);
}
} else {
printk(KERN_WARNING
"isofs: Unknown ZF compression "
"algorithm: %c%c\n",
rr->u.ZF.algorithm[0],
rr->u.ZF.algorithm[1]);
}
break;
}
#endif
default:
break;
}
}
ret = rock_continue(&rs);
if (ret == 0)
goto repeat;
if (ret == 1)
ret = 0;
out:
kfree(rs.buffer);
return ret;
eio:
ret = -EIO;
goto out;
} | 1413 | True | 1 |
||
CVE-2014-5472 | False | False | False | False | AV:L/AC:H/Au:N/C:N/I:N/A:C | LOCAL | HIGH | NONE | NONE | NONE | COMPLETE | 4.0 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/08/27/1', 'name': '[oss-security] 20140827 Re: CVE Request: Linux Kernel unbound recursion in ISOFS', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1134099', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'name': 'https://github.com/torvalds/linux/commit/410dd3cf4c9b36f27ed4542ee18b1af5e68645a4', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=88', 'refsource': 'MISC', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2355-1', 'name': 'USN-2355-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2354-1', 'name': 'USN-2354-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2358-1', 'name': 'USN-2358-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2359-1', 'name': 'USN-2359-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2357-1', 'name': 'USN-2357-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2356-1', 'name': 'USN-2356-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0102.html', 'name': 'RHSA-2015:0102', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0695.html', 'name': 'RHSA-2015:0695', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0782.html', 'name': 'RHSA-2015:0782', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0803.html', 'name': 'RHSA-2015:0803', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69428', 'name': '69428', 'refsource': 'BID', 'tags': []}, {'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/95556', 'name': 'linux-kernel-cve20145472-dos(95556)', 'refsource': 'XF', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-20'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (unkillable mount process) via a crafted iso9660 image with a self-referential CL entry.'}] | 2017-09-08T01:29Z | 2014-09-01T01:55Z | Improper Input Validation | The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. |
Input validation is a frequently-used technique
for checking potentially dangerous inputs in order to
ensure that the inputs are safe for processing within the
code, or when communicating with other components. When
software does not validate input properly, an attacker is
able to craft the input in a form that is not expected by
the rest of the application. This will lead to parts of the
system receiving unintended input, which may result in
altered control flow, arbitrary control of a resource, or
arbitrary code execution.
Input validation is not the only technique for
processing input, however. Other techniques attempt to
transform potentially-dangerous input into something safe, such
as filtering (CWE-790) - which attempts to remove dangerous
inputs - or encoding/escaping (CWE-116), which attempts to
ensure that the input is not misinterpreted when it is included
in output to another component. Other techniques exist as well
(see CWE-138 for more examples.)
Input validation can be applied to:
raw data - strings, numbers, parameters, file contents, etc.
metadata - information about the raw data, such as headers or size
Data can be simple or structured. Structured data
can be composed of many nested layers, composed of
combinations of metadata and raw data, with other simple or
structured data.
Many properties of raw data or metadata may need
to be validated upon entry into the code, such
as:
specified quantities such as size, length, frequency, price, rate, number of operations, time, etc.
implied or derived quantities, such as the actual size of a file instead of a specified size
indexes, offsets, or positions into more complex data structures
symbolic keys or other elements into hash tables, associative arrays, etc.
well-formedness, i.e. syntactic correctness - compliance with expected syntax
lexical token correctness - compliance with rules for what is treated as a token
specified or derived type - the actual type of the input (or what the input appears to be)
consistency - between individual data elements, between raw data and metadata, between references, etc.
conformance to domain-specific rules, e.g. business logic
equivalence - ensuring that equivalent inputs are treated the same
authenticity, ownership, or other attestations about the input, e.g. a cryptographic signature to prove the source of the data
Implied or derived properties of data must often
be calculated or inferred by the code itself. Errors in
deriving properties may be considered a contributing factor
to improper input validation.
Note that "input validation" has very different
meanings to different people, or within different
classification schemes. Caution must be used when
referencing this CWE entry or mapping to it. For example,
some weaknesses might involve inadvertently giving control
to an attacker over an input when they should not be able
to provide an input at all, but sometimes this is referred
to as input validation.
Finally, it is important to emphasize that the
distinctions between input validation and output escaping
are often blurred, and developers must be careful to
understand the difference, including how input validation
is not always sufficient to prevent vulnerabilities,
especially when less stringent data types must be
supported, such as free-form text. Consider a SQL injection
scenario in which a person's last name is inserted into a
query. The name "O'Reilly" would likely pass the validation
step since it is a common last name in the English
language. However, this valid name cannot be directly
inserted into the database because it contains the "'"
apostrophe character, which would need to be escaped or
otherwise transformed. In this case, removing the
apostrophe might reduce the risk of SQL injection, but it
would produce incorrect behavior because the wrong name
would be recorded.
| https://cwe.mitre.org/data/definitions/20.html | 0 | Jan Kara | 2014-08-17 11:49:57+02:00 | isofs: Fix unbounded recursion when processing relocated directories
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: [email protected]
Reported-by: Chris Evans <[email protected]>
Signed-off-by: Jan Kara <[email protected]> | 410dd3cf4c9b36f27ed4542ee18b1af5e68645a4 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | parse_rock_ridge_inode_internal | parse_rock_ridge_inode_internal( struct iso_directory_record * de , struct inode * inode , int regard_xa) | ['de', 'inode', 'regard_xa'] | parse_rock_ridge_inode_internal(struct iso_directory_record *de,
struct inode *inode, int regard_xa)
{
int symlink_len = 0;
int cnt, sig;
struct inode *reloc;
struct rock_ridge *rr;
int rootflag;
struct rock_state rs;
int ret = 0;
if (!ISOFS_SB(inode->i_sb)->s_rock)
return 0;
init_rock_state(&rs, inode);
setup_rock_ridge(de, inode, &rs);
if (regard_xa) {
rs.chr += 14;
rs.len -= 14;
if (rs.len < 0)
rs.len = 0;
}
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) {
#ifndef CONFIG_ZISOFS /* No flag for SF or ZF */
case SIG('R', 'R'):
if ((rr->u.RR.flags[0] &
(RR_PX | RR_TF | RR_SL | RR_CL)) == 0)
goto out;
break;
#endif
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('E', 'R'):
ISOFS_SB(inode->i_sb)->s_rock = 1;
printk(KERN_DEBUG "ISO 9660 Extensions: ");
{
int p;
for (p = 0; p < rr->u.ER.len_id; p++)
printk("%c", rr->u.ER.data[p]);
}
printk("\n");
break;
case SIG('P', 'X'):
inode->i_mode = isonum_733(rr->u.PX.mode);
set_nlink(inode, isonum_733(rr->u.PX.n_links));
i_uid_write(inode, isonum_733(rr->u.PX.uid));
i_gid_write(inode, isonum_733(rr->u.PX.gid));
break;
case SIG('P', 'N'):
{
int high, low;
high = isonum_733(rr->u.PN.dev_high);
low = isonum_733(rr->u.PN.dev_low);
/*
* The Rock Ridge standard specifies that if
* sizeof(dev_t) <= 4, then the high field is
* unused, and the device number is completely
* stored in the low field. Some writers may
* ignore this subtlety,
* and as a result we test to see if the entire
* device number is
* stored in the low field, and use that.
*/
if ((low & ~0xff) && high == 0) {
inode->i_rdev =
MKDEV(low >> 8, low & 0xff);
} else {
inode->i_rdev =
MKDEV(high, low);
}
}
break;
case SIG('T', 'F'):
/*
* Some RRIP writers incorrectly place ctime in the
* TF_CREATE field. Try to handle this correctly for
* either case.
*/
/* Rock ridge never appears on a High Sierra disk */
cnt = 0;
if (rr->u.TF.flags & TF_CREATE) {
inode->i_ctime.tv_sec =
iso_date(rr->u.TF.times[cnt++].time,
0);
inode->i_ctime.tv_nsec = 0;
}
if (rr->u.TF.flags & TF_MODIFY) {
inode->i_mtime.tv_sec =
iso_date(rr->u.TF.times[cnt++].time,
0);
inode->i_mtime.tv_nsec = 0;
}
if (rr->u.TF.flags & TF_ACCESS) {
inode->i_atime.tv_sec =
iso_date(rr->u.TF.times[cnt++].time,
0);
inode->i_atime.tv_nsec = 0;
}
if (rr->u.TF.flags & TF_ATTRIBUTES) {
inode->i_ctime.tv_sec =
iso_date(rr->u.TF.times[cnt++].time,
0);
inode->i_ctime.tv_nsec = 0;
}
break;
case SIG('S', 'L'):
{
int slen;
struct SL_component *slp;
struct SL_component *oldslp;
slen = rr->len - 5;
slp = &rr->u.SL.link;
inode->i_size = symlink_len;
while (slen > 1) {
rootflag = 0;
switch (slp->flags & ~1) {
case 0:
inode->i_size +=
slp->len;
break;
case 2:
inode->i_size += 1;
break;
case 4:
inode->i_size += 2;
break;
case 8:
rootflag = 1;
inode->i_size += 1;
break;
default:
printk("Symlink component flag "
"not implemented\n");
}
slen -= slp->len + 2;
oldslp = slp;
slp = (struct SL_component *)
(((char *)slp) + slp->len + 2);
if (slen < 2) {
if (((rr->u.SL.
flags & 1) != 0)
&&
((oldslp->
flags & 1) == 0))
inode->i_size +=
1;
break;
}
/*
* If this component record isn't
* continued, then append a '/'.
*/
if (!rootflag
&& (oldslp->flags & 1) == 0)
inode->i_size += 1;
}
}
symlink_len = inode->i_size;
break;
case SIG('R', 'E'):
printk(KERN_WARNING "Attempt to read inode for "
"relocated directory\n");
goto out;
case SIG('C', 'L'):
ISOFS_I(inode)->i_first_extent =
isonum_733(rr->u.CL.location);
reloc =
isofs_iget(inode->i_sb,
ISOFS_I(inode)->i_first_extent,
0);
if (IS_ERR(reloc)) {
ret = PTR_ERR(reloc);
goto out;
}
inode->i_mode = reloc->i_mode;
set_nlink(inode, reloc->i_nlink);
inode->i_uid = reloc->i_uid;
inode->i_gid = reloc->i_gid;
inode->i_rdev = reloc->i_rdev;
inode->i_size = reloc->i_size;
inode->i_blocks = reloc->i_blocks;
inode->i_atime = reloc->i_atime;
inode->i_ctime = reloc->i_ctime;
inode->i_mtime = reloc->i_mtime;
iput(reloc);
break;
#ifdef CONFIG_ZISOFS
case SIG('Z', 'F'): {
int algo;
if (ISOFS_SB(inode->i_sb)->s_nocompress)
break;
algo = isonum_721(rr->u.ZF.algorithm);
if (algo == SIG('p', 'z')) {
int block_shift =
isonum_711(&rr->u.ZF.parms[1]);
if (block_shift > 17) {
printk(KERN_WARNING "isofs: "
"Can't handle ZF block "
"size of 2^%d\n",
block_shift);
} else {
/*
* Note: we don't change
* i_blocks here
*/
ISOFS_I(inode)->i_file_format =
isofs_file_compressed;
/*
* Parameters to compression
* algorithm (header size,
* block size)
*/
ISOFS_I(inode)->i_format_parm[0] =
isonum_711(&rr->u.ZF.parms[0]);
ISOFS_I(inode)->i_format_parm[1] =
isonum_711(&rr->u.ZF.parms[1]);
inode->i_size =
isonum_733(rr->u.ZF.
real_size);
}
} else {
printk(KERN_WARNING
"isofs: Unknown ZF compression "
"algorithm: %c%c\n",
rr->u.ZF.algorithm[0],
rr->u.ZF.algorithm[1]);
}
break;
}
#endif
default:
break;
}
}
ret = rock_continue(&rs);
if (ret == 0)
goto repeat;
if (ret == 1)
ret = 0;
out:
kfree(rs.buffer);
return ret;
eio:
ret = -EIO;
goto out;
} | 1413 | True | 1 |
|
CVE-2014-3183 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=51217e69697fba92a06e07e16f55c9a52d8e8945', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=51217e69697fba92a06e07e16f55c9a52d8e8945', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=90', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=90', 'refsource': 'MISC', 'tags': ['Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/09/11/21', 'name': '[oss-security] 20140911 Multiple Linux USB driver CVE assignment', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141344', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141344', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://github.com/torvalds/linux/commit/51217e69697fba92a06e07e16f55c9a52d8e8945', 'name': 'https://github.com/torvalds/linux/commit/51217e69697fba92a06e07e16f55c9a52d8e8945', 'refsource': 'CONFIRM', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Heap-based buffer overflow in the logi_dj_ll_raw_request function in drivers/hid/hid-logitech-dj.c in the Linux kernel before 3.16.2 allows physically proximate attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a crafted device that specifies a large report size for an LED report.'}] | 2014-09-29T18:49Z | 2014-09-28T10:55Z | 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 | Jiri Kosina | 2014-08-21 09:56:47-05:00 | HID: logitech: fix bounds checking on LED report size
The check on report size for REPORT_TYPE_LEDS in logi_dj_ll_raw_request()
is wrong; the current check doesn't make any sense -- the report allocated
by HID core in hid_hw_raw_request() can be much larger than
DJREPORT_SHORT_LENGTH, and currently logi_dj_ll_raw_request() doesn't
handle this properly at all.
Fix the check by actually trimming down the report size properly if it is
too large.
Cc: [email protected]
Reported-by: Ben Hawkes <[email protected]>
Reviewed-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]> | 51217e69697fba92a06e07e16f55c9a52d8e8945 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | logi_dj_ll_raw_request | logi_dj_ll_raw_request( struct hid_device * hid , unsigned char reportnum , __u8 * buf , size_t count , unsigned char report_type , int reqtype) | ['hid', 'reportnum', 'buf', 'count', 'report_type', 'reqtype'] | static int logi_dj_ll_raw_request(struct hid_device *hid,
unsigned char reportnum, __u8 *buf,
size_t count, unsigned char report_type,
int reqtype)
{
struct dj_device *djdev = hid->driver_data;
struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
u8 *out_buf;
int ret;
if (buf[0] != REPORT_TYPE_LEDS)
return -EINVAL;
out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC);
if (!out_buf)
return -ENOMEM;
if (count < DJREPORT_SHORT_LENGTH - 2)
count = DJREPORT_SHORT_LENGTH - 2;
out_buf[0] = REPORT_ID_DJ_SHORT;
out_buf[1] = djdev->device_index;
memcpy(out_buf + 2, buf, count);
ret = hid_hw_raw_request(djrcv_dev->hdev, out_buf[0], out_buf,
DJREPORT_SHORT_LENGTH, report_type, reqtype);
kfree(out_buf);
return ret;
} | 154 | True | 1 |
|
CVE-2014-3182 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ad3e14d7c5268c2e24477c6ef54bbdf88add5d36', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ad3e14d7c5268c2e24477c6ef54bbdf88add5d36', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141210', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141210', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=89', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=89', 'refsource': 'MISC', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2014/09/11/21', 'name': '[oss-security] 20140911 Multiple Linux USB driver CVE assignment', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/ad3e14d7c5268c2e24477c6ef54bbdf88add5d36', 'name': 'https://github.com/torvalds/linux/commit/ad3e14d7c5268c2e24477c6ef54bbdf88add5d36', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69770', 'name': '69770', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Array index error in the logi_dj_raw_event function in drivers/hid/hid-logitech-dj.c in the Linux kernel before 3.16.2 allows physically proximate attackers to execute arbitrary code or cause a denial of service (invalid kfree) via a crafted device that provides a malformed REPORT_TYPE_NOTIF_DEVICE_UNPAIRED value.'}] | 2015-10-08T15:03Z | 2014-09-28T10:55Z | 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 | Jiri Kosina | 2014-08-21 09:57:17-05:00 | HID: logitech: perform bounds checking on device_id early enough
device_index is a char type and the size of paired_dj_deivces is 7
elements, therefore proper bounds checking has to be applied to
device_index before it is used.
We are currently performing the bounds checking in
logi_dj_recv_add_djhid_device(), which is too late, as malicious device
could send REPORT_TYPE_NOTIF_DEVICE_UNPAIRED early enough and trigger the
problem in one of the report forwarding functions called from
logi_dj_raw_event().
Fix this by performing the check at the earliest possible ocasion in
logi_dj_raw_event().
Cc: [email protected]
Reported-by: Ben Hawkes <[email protected]>
Reviewed-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]> | ad3e14d7c5268c2e24477c6ef54bbdf88add5d36 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | logi_dj_recv_add_djhid_device | logi_dj_recv_add_djhid_device( struct dj_receiver_dev * djrcv_dev , struct dj_report * dj_report) | ['djrcv_dev', 'dj_report'] | static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
struct dj_report *dj_report)
{
/* Called in delayed work context */
struct hid_device *djrcv_hdev = djrcv_dev->hdev;
struct usb_interface *intf = to_usb_interface(djrcv_hdev->dev.parent);
struct usb_device *usbdev = interface_to_usbdev(intf);
struct hid_device *dj_hiddev;
struct dj_device *dj_dev;
/* Device index goes from 1 to 6, we need 3 bytes to store the
* semicolon, the index, and a null terminator
*/
unsigned char tmpstr[3];
if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] &
SPFUNCTION_DEVICE_LIST_EMPTY) {
dbg_hid("%s: device list is empty\n", __func__);
djrcv_dev->querying_devices = false;
return;
}
if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) ||
(dj_report->device_index > DJ_DEVICE_INDEX_MAX)) {
dev_err(&djrcv_hdev->dev, "%s: invalid device index:%d\n",
__func__, dj_report->device_index);
return;
}
if (djrcv_dev->paired_dj_devices[dj_report->device_index]) {
/* The device is already known. No need to reallocate it. */
dbg_hid("%s: device is already known\n", __func__);
return;
}
dj_hiddev = hid_allocate_device();
if (IS_ERR(dj_hiddev)) {
dev_err(&djrcv_hdev->dev, "%s: hid_allocate_device failed\n",
__func__);
return;
}
dj_hiddev->ll_driver = &logi_dj_ll_driver;
dj_hiddev->dev.parent = &djrcv_hdev->dev;
dj_hiddev->bus = BUS_USB;
dj_hiddev->vendor = le16_to_cpu(usbdev->descriptor.idVendor);
dj_hiddev->product = le16_to_cpu(usbdev->descriptor.idProduct);
snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
"Logitech Unifying Device. Wireless PID:%02x%02x",
dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_MSB],
dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_LSB]);
usb_make_path(usbdev, dj_hiddev->phys, sizeof(dj_hiddev->phys));
snprintf(tmpstr, sizeof(tmpstr), ":%d", dj_report->device_index);
strlcat(dj_hiddev->phys, tmpstr, sizeof(dj_hiddev->phys));
dj_dev = kzalloc(sizeof(struct dj_device), GFP_KERNEL);
if (!dj_dev) {
dev_err(&djrcv_hdev->dev, "%s: failed allocating dj_device\n",
__func__);
goto dj_device_allocate_fail;
}
dj_dev->reports_supported = get_unaligned_le32(
dj_report->report_params + DEVICE_PAIRED_RF_REPORT_TYPE);
dj_dev->hdev = dj_hiddev;
dj_dev->dj_receiver_dev = djrcv_dev;
dj_dev->device_index = dj_report->device_index;
dj_hiddev->driver_data = dj_dev;
djrcv_dev->paired_dj_devices[dj_report->device_index] = dj_dev;
if (hid_add_device(dj_hiddev)) {
dev_err(&djrcv_hdev->dev, "%s: failed adding dj_device\n",
__func__);
goto hid_add_device_fail;
}
return;
hid_add_device_fail:
djrcv_dev->paired_dj_devices[dj_report->device_index] = NULL;
kfree(dj_dev);
dj_device_allocate_fail:
hid_destroy_device(dj_hiddev);
} | 445 | True | 1 |
|
CVE-2014-3184 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/11/21', 'name': '[oss-security] 20140911 Multiple Linux USB driver CVE assignment', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'refsource': 'MISC', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2374-1', 'name': 'USN-2374-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2375-1', 'name': 'USN-2375-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html', 'name': 'SUSE-SU-2015:0652', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69768', 'name': '69768', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1272.html', 'name': 'RHSA-2015:1272', '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': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The report_fixup functions in the HID subsystem in the Linux kernel before 3.16.2 might allow physically proximate attackers to cause a denial of service (out-of-bounds write) via a crafted device that provides a small report descriptor, related to (1) drivers/hid/hid-cherry.c, (2) drivers/hid/hid-kye.c, (3) drivers/hid/hid-lg.c, (4) drivers/hid/hid-monterey.c, (5) drivers/hid/hid-petalynx.c, and (6) drivers/hid/hid-sunplus.c.'}] | 2016-12-24T02:59Z | 2014-09-28T10:55Z | 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 | Jiri Kosina | 2014-08-21 09:57:48-05:00 | HID: fix a couple of off-by-ones
There are a few very theoretical off-by-one bugs in report descriptor size
checking when performing a pre-parsing fixup. Fix those.
Cc: [email protected]
Reported-by: Ben Hawkes <[email protected]>
Reviewed-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]> | 4ab25786c87eb20857bbb715c3ae34ec8fd6a214 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | ch_report_fixup | ch_report_fixup( struct hid_device * hdev , __u8 * rdesc , unsigned int * rsize) | ['hdev', 'rdesc', 'rsize'] | static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
hid_info(hdev, "fixing up Cherry Cymotion report descriptor\n");
rdesc[11] = rdesc[16] = 0xff;
rdesc[12] = rdesc[17] = 0x03;
}
return rdesc;
} | 75 | True | 1 |
|
CVE-2014-3184 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/11/21', 'name': '[oss-security] 20140911 Multiple Linux USB driver CVE assignment', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'refsource': 'MISC', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2374-1', 'name': 'USN-2374-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2375-1', 'name': 'USN-2375-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html', 'name': 'SUSE-SU-2015:0652', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69768', 'name': '69768', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1272.html', 'name': 'RHSA-2015:1272', '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': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The report_fixup functions in the HID subsystem in the Linux kernel before 3.16.2 might allow physically proximate attackers to cause a denial of service (out-of-bounds write) via a crafted device that provides a small report descriptor, related to (1) drivers/hid/hid-cherry.c, (2) drivers/hid/hid-kye.c, (3) drivers/hid/hid-lg.c, (4) drivers/hid/hid-monterey.c, (5) drivers/hid/hid-petalynx.c, and (6) drivers/hid/hid-sunplus.c.'}] | 2016-12-24T02:59Z | 2014-09-28T10:55Z | 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 | Jiri Kosina | 2014-08-21 09:57:48-05:00 | HID: fix a couple of off-by-ones
There are a few very theoretical off-by-one bugs in report descriptor size
checking when performing a pre-parsing fixup. Fix those.
Cc: [email protected]
Reported-by: Ben Hawkes <[email protected]>
Reviewed-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]> | 4ab25786c87eb20857bbb715c3ae34ec8fd6a214 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | lg_report_fixup | lg_report_fixup( struct hid_device * hdev , __u8 * rdesc , unsigned int * rsize) | ['hdev', 'rdesc', 'rsize'] | static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct lg_drv_data *drv_data = hid_get_drvdata(hdev);
struct usb_device_descriptor *udesc;
__u16 bcdDevice, rev_maj, rev_min;
if ((drv_data->quirks & LG_RDESC) && *rsize >= 90 && rdesc[83] == 0x26 &&
rdesc[84] == 0x8c && rdesc[85] == 0x02) {
hid_info(hdev,
"fixing up Logitech keyboard report descriptor\n");
rdesc[84] = rdesc[89] = 0x4d;
rdesc[85] = rdesc[90] = 0x10;
}
if ((drv_data->quirks & LG_RDESC_REL_ABS) && *rsize >= 50 &&
rdesc[32] == 0x81 && rdesc[33] == 0x06 &&
rdesc[49] == 0x81 && rdesc[50] == 0x06) {
hid_info(hdev,
"fixing up rel/abs in Logitech report descriptor\n");
rdesc[33] = rdesc[50] = 0x02;
}
switch (hdev->product) {
/* Several wheels report as this id when operating in emulation mode. */
case USB_DEVICE_ID_LOGITECH_WHEEL:
udesc = &(hid_to_usb_dev(hdev)->descriptor);
if (!udesc) {
hid_err(hdev, "NULL USB device descriptor\n");
break;
}
bcdDevice = le16_to_cpu(udesc->bcdDevice);
rev_maj = bcdDevice >> 8;
rev_min = bcdDevice & 0xff;
/* Update the report descriptor for only the Driving Force wheel */
if (rev_maj == 1 && rev_min == 2 &&
*rsize == DF_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Driving Force report descriptor\n");
rdesc = df_rdesc_fixed;
*rsize = sizeof(df_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
if (*rsize == MOMO_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Momo Force (Red) report descriptor\n");
rdesc = momo_rdesc_fixed;
*rsize = sizeof(momo_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
if (*rsize == MOMO2_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Momo Racing Force (Black) report descriptor\n");
rdesc = momo2_rdesc_fixed;
*rsize = sizeof(momo2_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
if (*rsize == FV_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Formula Vibration report descriptor\n");
rdesc = fv_rdesc_fixed;
*rsize = sizeof(fv_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
if (*rsize == DFP_RDESC_ORIG_SIZE) {
hid_info(hdev,
"fixing up Logitech Driving Force Pro report descriptor\n");
rdesc = dfp_rdesc_fixed;
*rsize = sizeof(dfp_rdesc_fixed);
}
break;
case USB_DEVICE_ID_LOGITECH_WII_WHEEL:
if (*rsize >= 101 && rdesc[41] == 0x95 && rdesc[42] == 0x0B &&
rdesc[47] == 0x05 && rdesc[48] == 0x09) {
hid_info(hdev, "fixing up Logitech Speed Force Wireless report descriptor\n");
rdesc[41] = 0x05;
rdesc[42] = 0x09;
rdesc[47] = 0x95;
rdesc[48] = 0x0B;
}
break;
}
return rdesc;
} | 484 | True | 1 |
|
CVE-2014-3184 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/11/21', 'name': '[oss-security] 20140911 Multiple Linux USB driver CVE assignment', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'refsource': 'MISC', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2374-1', 'name': 'USN-2374-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2375-1', 'name': 'USN-2375-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html', 'name': 'SUSE-SU-2015:0652', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69768', 'name': '69768', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1272.html', 'name': 'RHSA-2015:1272', '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': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The report_fixup functions in the HID subsystem in the Linux kernel before 3.16.2 might allow physically proximate attackers to cause a denial of service (out-of-bounds write) via a crafted device that provides a small report descriptor, related to (1) drivers/hid/hid-cherry.c, (2) drivers/hid/hid-kye.c, (3) drivers/hid/hid-lg.c, (4) drivers/hid/hid-monterey.c, (5) drivers/hid/hid-petalynx.c, and (6) drivers/hid/hid-sunplus.c.'}] | 2016-12-24T02:59Z | 2014-09-28T10:55Z | 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 | Jiri Kosina | 2014-08-21 09:57:48-05:00 | HID: fix a couple of off-by-ones
There are a few very theoretical off-by-one bugs in report descriptor size
checking when performing a pre-parsing fixup. Fix those.
Cc: [email protected]
Reported-by: Ben Hawkes <[email protected]>
Reviewed-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]> | 4ab25786c87eb20857bbb715c3ae34ec8fd6a214 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | mr_report_fixup | mr_report_fixup( struct hid_device * hdev , __u8 * rdesc , unsigned int * rsize) | ['hdev', 'rdesc', 'rsize'] | static __u8 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 30 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
hid_info(hdev, "fixing up button/consumer in HID report descriptor\n");
rdesc[30] = 0x0c;
}
return rdesc;
} | 58 | True | 1 |
|
CVE-2014-3184 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/11/21', 'name': '[oss-security] 20140911 Multiple Linux USB driver CVE assignment', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'refsource': 'MISC', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2374-1', 'name': 'USN-2374-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2375-1', 'name': 'USN-2375-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html', 'name': 'SUSE-SU-2015:0652', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69768', 'name': '69768', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1272.html', 'name': 'RHSA-2015:1272', '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': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The report_fixup functions in the HID subsystem in the Linux kernel before 3.16.2 might allow physically proximate attackers to cause a denial of service (out-of-bounds write) via a crafted device that provides a small report descriptor, related to (1) drivers/hid/hid-cherry.c, (2) drivers/hid/hid-kye.c, (3) drivers/hid/hid-lg.c, (4) drivers/hid/hid-monterey.c, (5) drivers/hid/hid-petalynx.c, and (6) drivers/hid/hid-sunplus.c.'}] | 2016-12-24T02:59Z | 2014-09-28T10:55Z | 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 | Jiri Kosina | 2014-08-21 09:57:48-05:00 | HID: fix a couple of off-by-ones
There are a few very theoretical off-by-one bugs in report descriptor size
checking when performing a pre-parsing fixup. Fix those.
Cc: [email protected]
Reported-by: Ben Hawkes <[email protected]>
Reviewed-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]> | 4ab25786c87eb20857bbb715c3ae34ec8fd6a214 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | pl_report_fixup | pl_report_fixup( struct hid_device * hdev , __u8 * rdesc , unsigned int * rsize) | ['hdev', 'rdesc', 'rsize'] | static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
hid_info(hdev, "fixing up Petalynx Maxter Remote report descriptor\n");
rdesc[60] = 0xfa;
rdesc[40] = 0xfa;
}
return rdesc;
} | 93 | True | 1 |
|
CVE-2014-3184 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/11/21', 'name': '[oss-security] 20140911 Multiple Linux USB driver CVE assignment', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'https://github.com/torvalds/linux/commit/4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4ab25786c87eb20857bbb715c3ae34ec8fd6a214', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=91', 'refsource': 'MISC', 'tags': ['Patch']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141391', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2374-1', 'name': 'USN-2374-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2375-1', 'name': 'USN-2375-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html', 'name': 'SUSE-SU-2015:0652', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69768', 'name': '69768', 'refsource': 'BID', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-1272.html', 'name': 'RHSA-2015:1272', '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': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The report_fixup functions in the HID subsystem in the Linux kernel before 3.16.2 might allow physically proximate attackers to cause a denial of service (out-of-bounds write) via a crafted device that provides a small report descriptor, related to (1) drivers/hid/hid-cherry.c, (2) drivers/hid/hid-kye.c, (3) drivers/hid/hid-lg.c, (4) drivers/hid/hid-monterey.c, (5) drivers/hid/hid-petalynx.c, and (6) drivers/hid/hid-sunplus.c.'}] | 2016-12-24T02:59Z | 2014-09-28T10:55Z | 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 | Jiri Kosina | 2014-08-21 09:57:48-05:00 | HID: fix a couple of off-by-ones
There are a few very theoretical off-by-one bugs in report descriptor size
checking when performing a pre-parsing fixup. Fix those.
Cc: [email protected]
Reported-by: Ben Hawkes <[email protected]>
Reviewed-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]> | 4ab25786c87eb20857bbb715c3ae34ec8fd6a214 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | sp_report_fixup | sp_report_fixup( struct hid_device * hdev , __u8 * rdesc , unsigned int * rsize) | ['hdev', 'rdesc', 'rsize'] | static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 107 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
rdesc[106] == 0x03) {
hid_info(hdev, "fixing up Sunplus Wireless Desktop report descriptor\n");
rdesc[105] = rdesc[110] = 0x03;
rdesc[106] = rdesc[111] = 0x21;
}
return rdesc;
} | 82 | True | 1 |
|
CVE-2014-3185 | False | False | False | False | AV:L/AC:M/Au:N/C:C/I:C/A:C | LOCAL | MEDIUM | NONE | COMPLETE | COMPLETE | COMPLETE | 6.9 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141400', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141400', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.2', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'https://code.google.com/p/google-security-research/issues/detail?id=98', 'name': 'https://code.google.com/p/google-security-research/issues/detail?id=98', 'refsource': 'MISC', 'tags': ['Patch']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/09/11/21', 'name': '[oss-security] 20140911 Multiple Linux USB driver CVE assignment', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/6817ae225cd650fb1c3295d769298c38b1eba818', 'name': 'https://github.com/torvalds/linux/commit/6817ae225cd650fb1c3295d769298c38b1eba818', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6817ae225cd650fb1c3295d769298c38b1eba818', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6817ae225cd650fb1c3295d769298c38b1eba818', 'refsource': 'CONFIRM', 'tags': ['Patch']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2374-1', 'name': 'USN-2374-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2375-1', 'name': 'USN-2375-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69781', 'name': '69781', 'refsource': 'BID', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html', 'name': 'SUSE-SU-2015:0481', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2015-0284.html', 'name': 'RHSA-2015:0284', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html', 'name': 'openSUSE-SU-2015:0566', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html', 'name': 'SUSE-SU-2015:0652', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html', 'name': 'SUSE-SU-2015:0812', 'refsource': 'SUSE', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.1', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Multiple buffer overflows in the command_port_read_callback function in drivers/usb/serial/whiteheat.c in the Whiteheat USB Serial Driver in the Linux kernel before 3.16.2 allow physically proximate attackers to execute arbitrary code or cause a denial of service (memory corruption and system crash) via a crafted device that provides a large amount of (1) EHCI or (2) XHCI data associated with a bulk response.'}] | 2015-05-12T02:00Z | 2014-09-28T10:55Z | 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 Forshaw | 2014-08-23 14:39:48-07:00 | USB: whiteheat: Added bounds checking for bulk command response
This patch fixes a potential security issue in the whiteheat USB driver
which might allow a local attacker to cause kernel memory corrpution. This
is due to an unchecked memcpy into a fixed size buffer (of 64 bytes). On
EHCI and XHCI busses it's possible to craft responses greater than 64
bytes leading a buffer overflow.
Signed-off-by: James Forshaw <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]> | 6817ae225cd650fb1c3295d769298c38b1eba818 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | command_port_read_callback | command_port_read_callback( struct urb * urb) | ['urb'] | static void command_port_read_callback(struct urb *urb)
{
struct usb_serial_port *command_port = urb->context;
struct whiteheat_command_private *command_info;
int status = urb->status;
unsigned char *data = urb->transfer_buffer;
int result;
command_info = usb_get_serial_port_data(command_port);
if (!command_info) {
dev_dbg(&urb->dev->dev, "%s - command_info is NULL, exiting.\n", __func__);
return;
}
if (status) {
dev_dbg(&urb->dev->dev, "%s - nonzero urb status: %d\n", __func__, status);
if (status != -ENOENT)
command_info->command_finished = WHITEHEAT_CMD_FAILURE;
wake_up(&command_info->wait_command);
return;
}
usb_serial_debug_data(&command_port->dev, __func__, urb->actual_length, data);
if (data[0] == WHITEHEAT_CMD_COMPLETE) {
command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
wake_up(&command_info->wait_command);
} else if (data[0] == WHITEHEAT_CMD_FAILURE) {
command_info->command_finished = WHITEHEAT_CMD_FAILURE;
wake_up(&command_info->wait_command);
} else if (data[0] == WHITEHEAT_EVENT) {
/* These are unsolicited reports from the firmware, hence no
waiting command to wakeup */
dev_dbg(&urb->dev->dev, "%s - event received\n", __func__);
} else if (data[0] == WHITEHEAT_GET_DTR_RTS) {
memcpy(command_info->result_buffer, &data[1],
urb->actual_length - 1);
command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
wake_up(&command_info->wait_command);
} else
dev_dbg(&urb->dev->dev, "%s - bad reply from firmware\n", __func__);
/* Continue trying to always read */
result = usb_submit_urb(command_port->read_urb, GFP_ATOMIC);
if (result)
dev_dbg(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n",
__func__, result);
} | 301 | True | 1 |
|
CVE-2014-6410 | False | False | False | False | AV:L/AC:M/Au:N/C:N/I:N/A:C | LOCAL | MEDIUM | NONE | NONE | NONE | COMPLETE | 4.7 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141809', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1141809', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/c03aa9f6e1f938618e6db2e23afef0574efeeb65', 'name': 'https://github.com/torvalds/linux/commit/c03aa9f6e1f938618e6db2e23afef0574efeeb65', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://www.openwall.com/lists/oss-security/2014/09/15/9', 'name': '[oss-security] 20140915 Re: CVE request for Linux kernel: udf: Avoid infinite loop when processing indirect ICBs', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c03aa9f6e1f938618e6db2e23afef0574efeeb65', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c03aa9f6e1f938618e6db2e23afef0574efeeb65', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Vendor Advisory']}, {'url': 'http://www.securityfocus.com/bid/69799', 'name': '69799', 'refsource': 'BID', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2375-1', 'name': 'USN-2375-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2374-1', 'name': 'USN-2374-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://rhn.redhat.com/errata/RHSA-2014-1318.html', 'name': 'RHSA-2014:1318', 'refsource': 'REDHAT', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html', 'name': 'SUSE-SU-2014:1316', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html', 'name': 'SUSE-SU-2014:1319', 'refsource': 'SUSE', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722450701342&w=2', 'name': 'HPSBGN03285', 'refsource': 'HP', 'tags': []}, {'url': 'http://marc.info/?l=bugtraq&m=142722544401658&w=2', 'name': 'HPSBGN03282', 'refsource': 'HP', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | MEDIUM | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.2:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.3', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.1:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'The __udf_read_inode function in fs/udf/inode.c in the Linux kernel through 3.16.3 does not restrict the amount of ICB indirection, which allows physically proximate attackers to cause a denial of service (infinite loop or stack consumption) via a UDF filesystem with a crafted inode.'}] | 2016-08-23T02:08Z | 2014-09-28T10:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Jan Kara | 2014-09-04 14:06:55+02:00 | udf: Avoid infinite loop when processing indirect ICBs
We did not implement any bound on number of indirect ICBs we follow when
loading inode. Thus corrupted medium could cause kernel to go into an
infinite loop, possibly causing a stack overflow.
Fix the possible stack overflow by removing recursion from
__udf_read_inode() and limit number of indirect ICBs we follow to avoid
infinite loops.
Signed-off-by: Jan Kara <[email protected]> | c03aa9f6e1f938618e6db2e23afef0574efeeb65 | False | torvalds/linux | Linux kernel source tree | 2011-09-04 22:48:12 | 2022-08-26 19:08:15 | torvalds | 136917.0 | 44307.0 | __udf_read_inode | __udf_read_inode( struct inode * inode) | ['inode'] | static void __udf_read_inode(struct inode *inode)
{
struct buffer_head *bh = NULL;
struct fileEntry *fe;
struct extendedFileEntry *efe;
uint16_t ident;
struct udf_inode_info *iinfo = UDF_I(inode);
struct udf_sb_info *sbi = UDF_SB(inode->i_sb);
unsigned int link_count;
/*
* Set defaults, but the inode is still incomplete!
* Note: get_new_inode() sets the following on a new inode:
* i_sb = sb
* i_no = ino
* i_flags = sb->s_flags
* i_state = 0
* clean_inode(): zero fills and sets
* i_count = 1
* i_nlink = 1
* i_op = NULL;
*/
bh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 0, &ident);
if (!bh) {
udf_err(inode->i_sb, "(ino %ld) failed !bh\n", inode->i_ino);
make_bad_inode(inode);
return;
}
if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
ident != TAG_IDENT_USE) {
udf_err(inode->i_sb, "(ino %ld) failed ident=%d\n",
inode->i_ino, ident);
brelse(bh);
make_bad_inode(inode);
return;
}
fe = (struct fileEntry *)bh->b_data;
efe = (struct extendedFileEntry *)bh->b_data;
if (fe->icbTag.strategyType == cpu_to_le16(4096)) {
struct buffer_head *ibh;
ibh = udf_read_ptagged(inode->i_sb, &iinfo->i_location, 1,
&ident);
if (ident == TAG_IDENT_IE && ibh) {
struct buffer_head *nbh = NULL;
struct kernel_lb_addr loc;
struct indirectEntry *ie;
ie = (struct indirectEntry *)ibh->b_data;
loc = lelb_to_cpu(ie->indirectICB.extLocation);
if (ie->indirectICB.extLength &&
(nbh = udf_read_ptagged(inode->i_sb, &loc, 0,
&ident))) {
if (ident == TAG_IDENT_FE ||
ident == TAG_IDENT_EFE) {
memcpy(&iinfo->i_location,
&loc,
sizeof(struct kernel_lb_addr));
brelse(bh);
brelse(ibh);
brelse(nbh);
__udf_read_inode(inode);
return;
}
brelse(nbh);
}
}
brelse(ibh);
} else if (fe->icbTag.strategyType != cpu_to_le16(4)) {
udf_err(inode->i_sb, "unsupported strategy type: %d\n",
le16_to_cpu(fe->icbTag.strategyType));
brelse(bh);
make_bad_inode(inode);
return;
}
if (fe->icbTag.strategyType == cpu_to_le16(4))
iinfo->i_strat4096 = 0;
else /* if (fe->icbTag.strategyType == cpu_to_le16(4096)) */
iinfo->i_strat4096 = 1;
iinfo->i_alloc_type = le16_to_cpu(fe->icbTag.flags) &
ICBTAG_FLAG_AD_MASK;
iinfo->i_unique = 0;
iinfo->i_lenEAttr = 0;
iinfo->i_lenExtents = 0;
iinfo->i_lenAlloc = 0;
iinfo->i_next_alloc_block = 0;
iinfo->i_next_alloc_goal = 0;
if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_EFE)) {
iinfo->i_efe = 1;
iinfo->i_use = 0;
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry))) {
make_bad_inode(inode);
return;
}
memcpy(iinfo->i_ext.i_data,
bh->b_data + sizeof(struct extendedFileEntry),
inode->i_sb->s_blocksize -
sizeof(struct extendedFileEntry));
} else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_FE)) {
iinfo->i_efe = 0;
iinfo->i_use = 0;
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
sizeof(struct fileEntry))) {
make_bad_inode(inode);
return;
}
memcpy(iinfo->i_ext.i_data,
bh->b_data + sizeof(struct fileEntry),
inode->i_sb->s_blocksize - sizeof(struct fileEntry));
} else if (fe->descTag.tagIdent == cpu_to_le16(TAG_IDENT_USE)) {
iinfo->i_efe = 0;
iinfo->i_use = 1;
iinfo->i_lenAlloc = le32_to_cpu(
((struct unallocSpaceEntry *)bh->b_data)->
lengthAllocDescs);
if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize -
sizeof(struct unallocSpaceEntry))) {
make_bad_inode(inode);
return;
}
memcpy(iinfo->i_ext.i_data,
bh->b_data + sizeof(struct unallocSpaceEntry),
inode->i_sb->s_blocksize -
sizeof(struct unallocSpaceEntry));
return;
}
read_lock(&sbi->s_cred_lock);
i_uid_write(inode, le32_to_cpu(fe->uid));
if (!uid_valid(inode->i_uid) ||
UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_IGNORE) ||
UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_SET))
inode->i_uid = UDF_SB(inode->i_sb)->s_uid;
i_gid_write(inode, le32_to_cpu(fe->gid));
if (!gid_valid(inode->i_gid) ||
UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_IGNORE) ||
UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_SET))
inode->i_gid = UDF_SB(inode->i_sb)->s_gid;
if (fe->icbTag.fileType != ICBTAG_FILE_TYPE_DIRECTORY &&
sbi->s_fmode != UDF_INVALID_MODE)
inode->i_mode = sbi->s_fmode;
else if (fe->icbTag.fileType == ICBTAG_FILE_TYPE_DIRECTORY &&
sbi->s_dmode != UDF_INVALID_MODE)
inode->i_mode = sbi->s_dmode;
else
inode->i_mode = udf_convert_permissions(fe);
inode->i_mode &= ~sbi->s_umask;
read_unlock(&sbi->s_cred_lock);
link_count = le16_to_cpu(fe->fileLinkCount);
if (!link_count)
link_count = 1;
set_nlink(inode, link_count);
inode->i_size = le64_to_cpu(fe->informationLength);
iinfo->i_lenExtents = inode->i_size;
if (iinfo->i_efe == 0) {
inode->i_blocks = le64_to_cpu(fe->logicalBlocksRecorded) <<
(inode->i_sb->s_blocksize_bits - 9);
if (!udf_disk_stamp_to_time(&inode->i_atime, fe->accessTime))
inode->i_atime = sbi->s_record_time;
if (!udf_disk_stamp_to_time(&inode->i_mtime,
fe->modificationTime))
inode->i_mtime = sbi->s_record_time;
if (!udf_disk_stamp_to_time(&inode->i_ctime, fe->attrTime))
inode->i_ctime = sbi->s_record_time;
iinfo->i_unique = le64_to_cpu(fe->uniqueID);
iinfo->i_lenEAttr = le32_to_cpu(fe->lengthExtendedAttr);
iinfo->i_lenAlloc = le32_to_cpu(fe->lengthAllocDescs);
iinfo->i_checkpoint = le32_to_cpu(fe->checkpoint);
} else {
inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
(inode->i_sb->s_blocksize_bits - 9);
if (!udf_disk_stamp_to_time(&inode->i_atime, efe->accessTime))
inode->i_atime = sbi->s_record_time;
if (!udf_disk_stamp_to_time(&inode->i_mtime,
efe->modificationTime))
inode->i_mtime = sbi->s_record_time;
if (!udf_disk_stamp_to_time(&iinfo->i_crtime, efe->createTime))
iinfo->i_crtime = sbi->s_record_time;
if (!udf_disk_stamp_to_time(&inode->i_ctime, efe->attrTime))
inode->i_ctime = sbi->s_record_time;
iinfo->i_unique = le64_to_cpu(efe->uniqueID);
iinfo->i_lenEAttr = le32_to_cpu(efe->lengthExtendedAttr);
iinfo->i_lenAlloc = le32_to_cpu(efe->lengthAllocDescs);
iinfo->i_checkpoint = le32_to_cpu(efe->checkpoint);
}
switch (fe->icbTag.fileType) {
case ICBTAG_FILE_TYPE_DIRECTORY:
inode->i_op = &udf_dir_inode_operations;
inode->i_fop = &udf_dir_operations;
inode->i_mode |= S_IFDIR;
inc_nlink(inode);
break;
case ICBTAG_FILE_TYPE_REALTIME:
case ICBTAG_FILE_TYPE_REGULAR:
case ICBTAG_FILE_TYPE_UNDEF:
case ICBTAG_FILE_TYPE_VAT20:
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
inode->i_data.a_ops = &udf_adinicb_aops;
else
inode->i_data.a_ops = &udf_aops;
inode->i_op = &udf_file_inode_operations;
inode->i_fop = &udf_file_operations;
inode->i_mode |= S_IFREG;
break;
case ICBTAG_FILE_TYPE_BLOCK:
inode->i_mode |= S_IFBLK;
break;
case ICBTAG_FILE_TYPE_CHAR:
inode->i_mode |= S_IFCHR;
break;
case ICBTAG_FILE_TYPE_FIFO:
init_special_inode(inode, inode->i_mode | S_IFIFO, 0);
break;
case ICBTAG_FILE_TYPE_SOCKET:
init_special_inode(inode, inode->i_mode | S_IFSOCK, 0);
break;
case ICBTAG_FILE_TYPE_SYMLINK:
inode->i_data.a_ops = &udf_symlink_aops;
inode->i_op = &udf_symlink_inode_operations;
inode->i_mode = S_IFLNK | S_IRWXUGO;
break;
case ICBTAG_FILE_TYPE_MAIN:
udf_debug("METADATA FILE-----\n");
break;
case ICBTAG_FILE_TYPE_MIRROR:
udf_debug("METADATA MIRROR FILE-----\n");
break;
case ICBTAG_FILE_TYPE_BITMAP:
udf_debug("METADATA BITMAP FILE-----\n");
break;
default:
udf_err(inode->i_sb, "(ino %ld) failed unknown file type=%d\n",
inode->i_ino, fe->icbTag.fileType);
make_bad_inode(inode);
return;
}
if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
struct deviceSpec *dsea =
(struct deviceSpec *)udf_get_extendedattr(inode, 12, 1);
if (dsea) {
init_special_inode(inode, inode->i_mode,
MKDEV(le32_to_cpu(dsea->majorDeviceIdent),
le32_to_cpu(dsea->minorDeviceIdent)));
/* Developer ID ??? */
} else
make_bad_inode(inode);
}
brelse(bh);
} | 1613 | True | 1 |
||
CVE-2014-6416 | False | False | False | False | AV:N/AC:L/Au:N/C:N/I:N/A:C | NETWORK | LOW | NONE | NONE | NONE | COMPLETE | 7.8 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://tracker.ceph.com/issues/8979', 'name': 'http://tracker.ceph.com/issues/8979', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142060', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142060', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2014/09/15/7', 'name': '[oss-security] 20140915 Re: CVE Request: libceph auth token overflow / Linux kernel', 'refsource': 'MLIST', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69805', 'name': '69805', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.2', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.1:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Buffer overflow in net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, allows remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other impact via a long unencrypted auth ticket.'}] | 2015-04-30T02:00Z | 2014-09-28T10:55Z | 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 | Ilya Dryomov | 2014-09-09 19:39:15+04:00 | libceph: do not hard code max auth ticket len
We hard code cephx auth ticket buffer size to 256 bytes. This isn't
enough for any moderate setups and, in case tickets themselves are not
encrypted, leads to buffer overflows (ceph_x_decrypt() errors out, but
ceph_decode_copy() doesn't - it's just a memcpy() wrapper). Since the
buffer is allocated dynamically anyway, allocated it a bit later, at
the point where we know how much is going to be needed.
Fixes: http://tracker.ceph.com/issues/8979
Cc: [email protected]
Signed-off-by: Ilya Dryomov <[email protected]>
Reviewed-by: Sage Weil <[email protected]> | c27a3e4d667fdcad3db7b104f75659478e0c68d8 | 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_x_decrypt | ceph_x_decrypt( struct ceph_crypto_key * secret , void ** p , void * end , void * obuf , size_t olen) | ['secret', 'p', 'end', 'obuf', 'olen'] | static int ceph_x_decrypt(struct ceph_crypto_key *secret,
void **p, void *end, void *obuf, size_t olen)
{
struct ceph_x_encrypt_header head;
size_t head_len = sizeof(head);
int len, ret;
len = ceph_decode_32(p);
if (*p + len > end)
return -EINVAL;
dout("ceph_x_decrypt len %d\n", len);
ret = ceph_decrypt2(secret, &head, &head_len, obuf, &olen,
*p, len);
if (ret)
return ret;
if (head.struct_v != 1 || le64_to_cpu(head.magic) != CEPHX_ENC_MAGIC)
return -EPERM;
*p += len;
return olen;
} | 127 | True | 1 |
|
CVE-2014-6417 | False | False | False | False | AV:N/AC:L/Au:N/C:N/I:N/A:C | NETWORK | LOW | NONE | NONE | NONE | COMPLETE | 7.8 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/15/7', 'name': '[oss-security] 20140915 Re: CVE Request: libceph auth token overflow / Linux kernel', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142072', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142072', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://tracker.ceph.com/issues/9560', 'name': 'http://tracker.ceph.com/issues/9560', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://tracker.ceph.com/issues/8979', 'name': 'http://tracker.ceph.com/issues/8979', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.2', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.1:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, does not properly consider the possibility of kmalloc failure, which allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via a long unencrypted auth ticket.'}] | 2014-10-24T07:28Z | 2014-09-28T10:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Ilya Dryomov | 2014-09-09 19:39:15+04:00 | libceph: do not hard code max auth ticket len
We hard code cephx auth ticket buffer size to 256 bytes. This isn't
enough for any moderate setups and, in case tickets themselves are not
encrypted, leads to buffer overflows (ceph_x_decrypt() errors out, but
ceph_decode_copy() doesn't - it's just a memcpy() wrapper). Since the
buffer is allocated dynamically anyway, allocated it a bit later, at
the point where we know how much is going to be needed.
Fixes: http://tracker.ceph.com/issues/8979
Cc: [email protected]
Signed-off-by: Ilya Dryomov <[email protected]>
Reviewed-by: Sage Weil <[email protected]> | c27a3e4d667fdcad3db7b104f75659478e0c68d8 | 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_x_decrypt | ceph_x_decrypt( struct ceph_crypto_key * secret , void ** p , void * end , void * obuf , size_t olen) | ['secret', 'p', 'end', 'obuf', 'olen'] | static int ceph_x_decrypt(struct ceph_crypto_key *secret,
void **p, void *end, void *obuf, size_t olen)
{
struct ceph_x_encrypt_header head;
size_t head_len = sizeof(head);
int len, ret;
len = ceph_decode_32(p);
if (*p + len > end)
return -EINVAL;
dout("ceph_x_decrypt len %d\n", len);
ret = ceph_decrypt2(secret, &head, &head_len, obuf, &olen,
*p, len);
if (ret)
return ret;
if (head.struct_v != 1 || le64_to_cpu(head.magic) != CEPHX_ENC_MAGIC)
return -EPERM;
*p += len;
return olen;
} | 127 | True | 1 |
||
CVE-2014-6418 | False | False | False | False | AV:N/AC:M/Au:N/C:N/I:N/A:C | NETWORK | MEDIUM | NONE | NONE | NONE | COMPLETE | 7.1 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/15/7', 'name': '[oss-security] 20140915 Re: CVE Request: libceph auth token overflow / Linux kernel', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://tracker.ceph.com/issues/9561', 'name': 'http://tracker.ceph.com/issues/9561', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Vendor Advisory']}, {'url': 'http://tracker.ceph.com/issues/8979', 'name': 'http://tracker.ceph.com/issues/8979', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142073', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142073', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.2', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.1:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, does not properly validate auth replies, which allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via crafted data from the IP address of a Ceph Monitor.'}] | 2014-10-24T07:28Z | 2014-09-28T10:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Ilya Dryomov | 2014-09-09 19:39:15+04:00 | libceph: do not hard code max auth ticket len
We hard code cephx auth ticket buffer size to 256 bytes. This isn't
enough for any moderate setups and, in case tickets themselves are not
encrypted, leads to buffer overflows (ceph_x_decrypt() errors out, but
ceph_decode_copy() doesn't - it's just a memcpy() wrapper). Since the
buffer is allocated dynamically anyway, allocated it a bit later, at
the point where we know how much is going to be needed.
Fixes: http://tracker.ceph.com/issues/8979
Cc: [email protected]
Signed-off-by: Ilya Dryomov <[email protected]>
Reviewed-by: Sage Weil <[email protected]> | c27a3e4d667fdcad3db7b104f75659478e0c68d8 | 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_x_decrypt | ceph_x_decrypt( struct ceph_crypto_key * secret , void ** p , void * end , void * obuf , size_t olen) | ['secret', 'p', 'end', 'obuf', 'olen'] | static int ceph_x_decrypt(struct ceph_crypto_key *secret,
void **p, void *end, void *obuf, size_t olen)
{
struct ceph_x_encrypt_header head;
size_t head_len = sizeof(head);
int len, ret;
len = ceph_decode_32(p);
if (*p + len > end)
return -EINVAL;
dout("ceph_x_decrypt len %d\n", len);
ret = ceph_decrypt2(secret, &head, &head_len, obuf, &olen,
*p, len);
if (ret)
return ret;
if (head.struct_v != 1 || le64_to_cpu(head.magic) != CEPHX_ENC_MAGIC)
return -EPERM;
*p += len;
return olen;
} | 127 | True | 1 |
||
CVE-2014-6416 | False | False | False | False | AV:N/AC:L/Au:N/C:N/I:N/A:C | NETWORK | LOW | NONE | NONE | NONE | COMPLETE | 7.8 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Vendor Advisory']}, {'url': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://tracker.ceph.com/issues/8979', 'name': 'http://tracker.ceph.com/issues/8979', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142060', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142060', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.openwall.com/lists/oss-security/2014/09/15/7', 'name': '[oss-security] 20140915 Re: CVE Request: libceph auth token overflow / Linux kernel', 'refsource': 'MLIST', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.securityfocus.com/bid/69805', 'name': '69805', 'refsource': 'BID', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-119'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.2', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.1:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'Buffer overflow in net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, allows remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other impact via a long unencrypted auth ticket.'}] | 2015-04-30T02:00Z | 2014-09-28T10:55Z | 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 | Ilya Dryomov | 2014-09-09 19:39:15+04:00 | libceph: do not hard code max auth ticket len
We hard code cephx auth ticket buffer size to 256 bytes. This isn't
enough for any moderate setups and, in case tickets themselves are not
encrypted, leads to buffer overflows (ceph_x_decrypt() errors out, but
ceph_decode_copy() doesn't - it's just a memcpy() wrapper). Since the
buffer is allocated dynamically anyway, allocated it a bit later, at
the point where we know how much is going to be needed.
Fixes: http://tracker.ceph.com/issues/8979
Cc: [email protected]
Signed-off-by: Ilya Dryomov <[email protected]>
Reviewed-by: Sage Weil <[email protected]> | c27a3e4d667fdcad3db7b104f75659478e0c68d8 | 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_x_proc_ticket_reply | ceph_x_proc_ticket_reply( struct ceph_auth_client * ac , struct ceph_crypto_key * secret , void * buf , void * end) | ['ac', 'secret', 'buf', 'end'] | static int ceph_x_proc_ticket_reply(struct ceph_auth_client *ac,
struct ceph_crypto_key *secret,
void *buf, void *end)
{
void *p = buf;
char *dbuf;
char *ticket_buf;
u8 reply_struct_v;
u32 num;
int ret;
dbuf = kmalloc(TEMP_TICKET_BUF_LEN, GFP_NOFS);
if (!dbuf)
return -ENOMEM;
ret = -ENOMEM;
ticket_buf = kmalloc(TEMP_TICKET_BUF_LEN, GFP_NOFS);
if (!ticket_buf)
goto out_dbuf;
ceph_decode_8_safe(&p, end, reply_struct_v, bad);
if (reply_struct_v != 1)
return -EINVAL;
ceph_decode_32_safe(&p, end, num, bad);
dout("%d tickets\n", num);
while (num--) {
ret = process_one_ticket(ac, secret, &p, end,
dbuf, ticket_buf);
if (ret)
goto out;
}
ret = 0;
out:
kfree(ticket_buf);
out_dbuf:
kfree(dbuf);
return ret;
bad:
ret = -EINVAL;
goto out;
} | 189 | True | 1 |
|
CVE-2014-6417 | False | False | False | False | AV:N/AC:L/Au:N/C:N/I:N/A:C | NETWORK | LOW | NONE | NONE | NONE | COMPLETE | 7.8 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/15/7', 'name': '[oss-security] 20140915 Re: CVE Request: libceph auth token overflow / Linux kernel', 'refsource': 'MLIST', 'tags': []}, {'url': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142072', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142072', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://tracker.ceph.com/issues/9560', 'name': 'http://tracker.ceph.com/issues/9560', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'refsource': 'CONFIRM', 'tags': ['Vendor Advisory']}, {'url': 'http://tracker.ceph.com/issues/8979', 'name': 'http://tracker.ceph.com/issues/8979', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.2', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.1:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, does not properly consider the possibility of kmalloc failure, which allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via a long unencrypted auth ticket.'}] | 2014-10-24T07:28Z | 2014-09-28T10:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Ilya Dryomov | 2014-09-09 19:39:15+04:00 | libceph: do not hard code max auth ticket len
We hard code cephx auth ticket buffer size to 256 bytes. This isn't
enough for any moderate setups and, in case tickets themselves are not
encrypted, leads to buffer overflows (ceph_x_decrypt() errors out, but
ceph_decode_copy() doesn't - it's just a memcpy() wrapper). Since the
buffer is allocated dynamically anyway, allocated it a bit later, at
the point where we know how much is going to be needed.
Fixes: http://tracker.ceph.com/issues/8979
Cc: [email protected]
Signed-off-by: Ilya Dryomov <[email protected]>
Reviewed-by: Sage Weil <[email protected]> | c27a3e4d667fdcad3db7b104f75659478e0c68d8 | 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_x_proc_ticket_reply | ceph_x_proc_ticket_reply( struct ceph_auth_client * ac , struct ceph_crypto_key * secret , void * buf , void * end) | ['ac', 'secret', 'buf', 'end'] | static int ceph_x_proc_ticket_reply(struct ceph_auth_client *ac,
struct ceph_crypto_key *secret,
void *buf, void *end)
{
void *p = buf;
char *dbuf;
char *ticket_buf;
u8 reply_struct_v;
u32 num;
int ret;
dbuf = kmalloc(TEMP_TICKET_BUF_LEN, GFP_NOFS);
if (!dbuf)
return -ENOMEM;
ret = -ENOMEM;
ticket_buf = kmalloc(TEMP_TICKET_BUF_LEN, GFP_NOFS);
if (!ticket_buf)
goto out_dbuf;
ceph_decode_8_safe(&p, end, reply_struct_v, bad);
if (reply_struct_v != 1)
return -EINVAL;
ceph_decode_32_safe(&p, end, num, bad);
dout("%d tickets\n", num);
while (num--) {
ret = process_one_ticket(ac, secret, &p, end,
dbuf, ticket_buf);
if (ret)
goto out;
}
ret = 0;
out:
kfree(ticket_buf);
out_dbuf:
kfree(dbuf);
return ret;
bad:
ret = -EINVAL;
goto out;
} | 189 | True | 1 |
||
CVE-2014-6418 | False | False | False | False | AV:N/AC:M/Au:N/C:N/I:N/A:C | NETWORK | MEDIUM | NONE | NONE | NONE | COMPLETE | 7.1 | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | nan | [{'url': 'http://www.openwall.com/lists/oss-security/2014/09/15/7', 'name': '[oss-security] 20140915 Re: CVE Request: libceph auth token overflow / Linux kernel', 'refsource': 'MLIST', 'tags': []}, {'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'http://tracker.ceph.com/issues/9561', 'name': 'http://tracker.ceph.com/issues/9561', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'name': 'http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3', 'refsource': 'CONFIRM', 'tags': ['Exploit', 'Vendor Advisory']}, {'url': 'http://tracker.ceph.com/issues/8979', 'name': 'http://tracker.ceph.com/issues/8979', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'name': 'https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8', 'refsource': 'CONFIRM', 'tags': ['Exploit']}, {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142073', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1142073', 'refsource': 'CONFIRM', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2377-1', 'name': 'USN-2377-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2376-1', 'name': 'USN-2376-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2379-1', 'name': 'USN-2379-1', 'refsource': 'UBUNTU', 'tags': []}, {'url': 'http://www.ubuntu.com/usn/USN-2378-1', 'name': 'USN-2378-1', 'refsource': 'UBUNTU', 'tags': []}] | [{'description': [{'lang': 'en', 'value': 'CWE-399'}]}] | HIGH | [{'operator': 'OR', 'children': [], 'cpe_match': [{'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*', 'versionEndIncluding': '3.16.2', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.0:*:*:*:*:*:*:*', 'cpe_name': []}, {'vulnerable': True, 'cpe23Uri': 'cpe:2.3:o:linux:linux_kernel:3.16.1:*:*:*:*:*:*:*', 'cpe_name': []}]}] | [{'lang': 'en', 'value': 'net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, does not properly validate auth replies, which allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via crafted data from the IP address of a Ceph Monitor.'}] | 2014-10-24T07:28Z | 2014-09-28T10:55Z | Resource Management Errors | Weaknesses in this category are related to improper management of system resources. | https://cwe.mitre.org/data/definitions/399.html | 1 | Ilya Dryomov | 2014-09-09 19:39:15+04:00 | libceph: do not hard code max auth ticket len
We hard code cephx auth ticket buffer size to 256 bytes. This isn't
enough for any moderate setups and, in case tickets themselves are not
encrypted, leads to buffer overflows (ceph_x_decrypt() errors out, but
ceph_decode_copy() doesn't - it's just a memcpy() wrapper). Since the
buffer is allocated dynamically anyway, allocated it a bit later, at
the point where we know how much is going to be needed.
Fixes: http://tracker.ceph.com/issues/8979
Cc: [email protected]
Signed-off-by: Ilya Dryomov <[email protected]>
Reviewed-by: Sage Weil <[email protected]> | c27a3e4d667fdcad3db7b104f75659478e0c68d8 | 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_x_proc_ticket_reply | ceph_x_proc_ticket_reply( struct ceph_auth_client * ac , struct ceph_crypto_key * secret , void * buf , void * end) | ['ac', 'secret', 'buf', 'end'] | static int ceph_x_proc_ticket_reply(struct ceph_auth_client *ac,
struct ceph_crypto_key *secret,
void *buf, void *end)
{
void *p = buf;
char *dbuf;
char *ticket_buf;
u8 reply_struct_v;
u32 num;
int ret;
dbuf = kmalloc(TEMP_TICKET_BUF_LEN, GFP_NOFS);
if (!dbuf)
return -ENOMEM;
ret = -ENOMEM;
ticket_buf = kmalloc(TEMP_TICKET_BUF_LEN, GFP_NOFS);
if (!ticket_buf)
goto out_dbuf;
ceph_decode_8_safe(&p, end, reply_struct_v, bad);
if (reply_struct_v != 1)
return -EINVAL;
ceph_decode_32_safe(&p, end, num, bad);
dout("%d tickets\n", num);
while (num--) {
ret = process_one_ticket(ac, secret, &p, end,
dbuf, ticket_buf);
if (ret)
goto out;
}
ret = 0;
out:
kfree(ticket_buf);
out_dbuf:
kfree(dbuf);
return ret;
bad:
ret = -EINVAL;
goto out;
} | 189 | True | 1 |
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