Use After Free Affecting kernel-rt-core package, versions <0:5.14.0-162.6.1.rt21.168.el9_1


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
1.46% (87th percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNELRTCORE-5655664
  • 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:9 kernel-rt-core to version 0:5.14.0-162.6.1.rt21.168.el9_1 or higher.
This issue was patched in ALSA-2022:7933.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-core package and not the kernel-rt-core package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 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