Resource Exhaustion Affecting kernel-64k-debug-modules package, versions <0:5.14.0-284.92.1.el9_2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (12th 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 Learn

Learn about Resource Exhaustion vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-RHEL9-KERNEL64KDEBUGMODULES-8368488
  • published13 Nov 2024
  • disclosed12 Jul 2024

Introduced: 12 Jul 2024

CVE-2024-40931  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-64k-debug-modules to version 0:5.14.0-284.92.1.el9_2 or higher.
This issue was patched in RHSA-2024:9497.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64k-debug-modules package and not the kernel-64k-debug-modules package as distributed by RHEL. See How to fix? for RHEL:9 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