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


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN2022-KERNEL-3043546
  • 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 to version 0:5.15.72-43.134.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 package and not the kernel 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 Scores

version 3.1