Use After Free Affecting kernel-64k-debug-modules package, versions <0:5.14.0-284.11.1.el9_2


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNEL64KDEBUGMODULES-5643928
  • published28 May 2023
  • disclosed9 May 2023

Introduced: 9 May 2023

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

How to fix?

Upgrade AlmaLinux:9 kernel-64k-debug-modules to version 0:5.14.0-284.11.1.el9_2 or higher.
This issue was patched in ALSA-2023:2458.

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 AlmaLinux. See How to fix? for AlmaLinux: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