Use After Free Affecting bsdcat package, versions <0:3.5.3-2.amzn2023.0.2


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
2.85% (85th percentile)

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  • Snyk IDSNYK-AMZN2023-BSDCAT-3347446
  • published7 Mar 2023
  • disclosed20 Jul 2021

Introduced: 20 Jul 2021

CVE-2021-36976  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 bsdcat to version 0:3.5.3-2.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2023-071.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bsdcat package and not the bsdcat package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).

CVSS Base Scores

version 3.1