Use After Free Affecting kernel-rt-debug package, versions <0:5.14.0-70.30.1.rt21.102.el9_0


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTDEBUG-7858675
  • published3 Sept 2024
  • disclosed9 Aug 2022

Introduced: 9 Aug 2022

CVE-2022-2585  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-rt-debug to version 0:5.14.0-70.30.1.rt21.102.el9_0 or higher.
This issue was patched in RHSA-2022:7319.

NVD Description

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

It was discovered that when exec'ing from a non-leader thread, armed POSIX CPU timers would be left on a list but freed, leading to a use-after-free.

CVSS Scores

version 3.1