Siemens RUGGEDCOM ROS (Update A)
The embedded DENX U-Boot boot loader has a locally exploitable buffer overflow via a crafted kernel image because filesystem loading is mishandled.

The security vulnerability could be exploited by an attacker with local access to the affected systems. The vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the system.

At the time of advisory publication no public exploitation of this security vulnerability was known.
CVE-2018-18440 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). The embedded DENX U-Boot boot loader has a physically exploitable vulnerability. A crafted self-referential DOS partition table will cause the bootloader to infinitely recurse, causing the stack to grow infinitely and eventually crash.

The security vulnerability could be exploited by an attacker with physical access to the affected systems. The vulnerability could allow an attacker to compromise the availability of the system.

At the time of advisory publication no public exploitation of this security vulnerability was known.
CVE-2019-13103 has been assigned to this vulnerability. A CVSS v3 base score of 4.6 has been calculated; the CVSS vector string is (AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).