Use After Free Affecting kernel-rt-modules-extra package, versions <0:4.18.0-553.rt7.342.el8_10


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTMODULESEXTRA-6150350
  • published10 Jan 2024
  • disclosed19 Dec 2023

Introduced: 19 Dec 2023

CVE-2023-6932  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-modules-extra to version 0:4.18.0-553.rt7.342.el8_10 or higher.
This issue was patched in RHSA-2024:2950.

NVD Description

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

A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation.

A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread.

We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1.

CVSS Scores

version 3.1