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


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELRT-2977949
  • published10 Aug 2022
  • 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 Centos:9 kernel-rt to version 0:5.14.0-70.30.1.rt21.102.el9_0 or higher.

NVD Description

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