Public on 2023-06-28
Modified on 2024-03-12
The upstream advisory describes this issue as follows:

"This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the processing of seg6 attributes. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilties to escalate privileges and execute arbitrary code in the context of the kernel."
Medium severity
CVSS v3 Base Score
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 kernel 2022-09-30 ALAS-2022-1636 Fixed
Amazon Linux 2 - Core kernel 2022-09-30 ALAS2-2022-1852 Fixed
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-09-30 ALAS2KERNEL-5.10-2022-020 Fixed
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-09-30 ALAS2KERNEL-5.15-2022-008 Fixed
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-09-30 ALAS2KERNEL-5.4-2022-036 Fixed
Amazon Linux 2023 kernel Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N