Use After Free Affecting kernel-rt-modules-extra package, versions <0:4.18.0-425.3.1.rt7.213.el8


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
1.05% (85th 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 Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ALMALINUX8-KERNELRTMODULESEXTRA-5633661
  • published28 May 2023
  • disclosed15 Nov 2022

Introduced: 15 Nov 2022

CVE-2022-2586  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt-modules-extra to version 0:4.18.0-425.3.1.rt7.213.el8 or higher.
This issue was patched in ALSA-2022:7444.

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 AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.

CVSS Scores

version 3.1