CVE-2024-40931 Affecting kernel-modules-extra package, versions <0:4.18.0-553.22.1.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (13th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALMALINUX8-KERNELMODULESEXTRA-8093938
  • published25 Sept 2024
  • disclosed30 Oct 2024

Introduced: 25 Sep 2024

CVE-2024-40931  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-modules-extra to version 0:4.18.0-553.22.1.el8_10 or higher.
This issue was patched in ALSA-2024:7000.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-modules-extra package and not the kernel-modules-extra package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

mptcp: ensure snd_una is properly initialized on connect

This is strictly related to commit fb7a0d334894 ("mptcp: ensure snd_nxt is properly initialized on connect"). It turns out that syzkaller can trigger the retransmit after fallback and before processing any other incoming packet - so that snd_una is still left uninitialized.

Address the issue explicitly initializing snd_una together with snd_nxt and write_seq.

CVSS Scores

version 3.1