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CVE-2023-42754

Public on 2023-10-04
Modified on 2024-01-12
Description

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.

Severity
Medium
See what this means
CVSS v3 Base Score
4.4
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2023-11-10 17:32 ALAS-2023-1883
Amazon Linux 2 - Core kernel 2023-10-30 23:59 ALAS2-2023-2328
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-10-31 00:17 ALAS2KERNEL-5.10-2023-042
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-10-12 17:29 ALAS2KERNEL-5.15-2023-028
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-10-31 00:16 ALAS2KERNEL-5.4-2023-055
Amazon Linux 2023 kernel 2023-10-12 16:11 ALAS2023-2023-385

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.4 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H