Use After Free Affecting kernel-livepatch-5.15.72-43.134 package, versions <0:1.0-0.amzn2022


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.28% (67th percentile)

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  • Snyk IDSNYK-AMZN2022-KERNELLIVEPATCH5157243134-3043536
  • published14 Oct 2022
  • disclosed8 Jan 2024

Introduced: 14 Oct 2022

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

How to fix?

Upgrade Amazon-Linux:2022 kernel-livepatch-5.15.72-43.134 to version 0:1.0-0.amzn2022 or higher.
This issue was patched in ALAS2022-2022-150.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5.15.72-43.134 package and not the kernel-livepatch-5.15.72-43.134 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2022 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 Base Scores

version 3.1