Use After Free Affecting kernel-rt-debug-devel package, versions <0:5.14.0-284.11.1.rt14.296.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTDEBUGDEVEL-5583677
  • published14 Oct 2022
  • disclosed9 Oct 2022

Introduced: 9 Oct 2022

CVE-2022-42703  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-rt-debug-devel to version 0:5.14.0-284.11.1.rt14.296.el9_2 or higher.
This issue was patched in RHSA-2023:2148.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-devel package and not the kernel-rt-debug-devel package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.

CVSS Scores

version 3.1