Use After Free Affecting perf package, versions <0:4.14.330-250.540.amzn2


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN2-PERF-6098786
  • published5 Dec 2023
  • disclosed24 Jul 2023

Introduced: 24 Jul 2023

CVE-2023-3567  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 perf to version 0:4.14.330-250.540.amzn2 or higher.
This issue was patched in ALAS2-2023-2359.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.

CVSS Scores

version 3.1