Use After Free Affecting kernel-modules-extra package, versions <0:4.18.0-513.11.1.el8_9


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELMODULESEXTRA-6170189
  • published17 Jan 2024
  • disclosed10 Jan 2024

Introduced: 10 Jan 2024

CVE-2023-5633  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-modules-extra to version 0:4.18.0-513.11.1.el8_9 or higher.
This issue was patched in ALSA-2024:0113.

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.

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges.

CVSS Scores

version 3.1