Public on 2023-06-30
Modified on 2024-03-01
A use-after-free flaw was found in the Netfilter subsystem of the Linux kernel when processing named and anonymous sets in batch requests, which can lead to performing arbitrary reads and writes in kernel memory. This flaw allows a local user with CAP_NET_ADMIN capability to crash or potentially escalate their privileges on the system.
Important severity
CVSS v3 Base Score
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 kernel 2023-07-13 ALAS-2023-1783 Fixed
Amazon Linux 2 - Core kernel 2023-07-17 ALAS2-2023-2130 Fixed
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-07-14 ALAS2KERNEL-5.10-2023-037 Fixed
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-07-14 ALAS2KERNEL-5.15-2023-024 Fixed
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-07-14 ALAS2KERNEL-5.4-2023-049 Fixed
Amazon Linux 2023 kernel 2023-07-17 ALAS2023-2023-251 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H