Use After Free Affecting libxml2-static package, versions <0:2.10.4-1.amzn2023.0.6


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-AMZN2023-LIBXML2STATIC-6045623
  • published4 Nov 2023
  • disclosed6 Oct 2023

Introduced: 6 Oct 2023

CVE-2023-45322  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 libxml2-static to version 0:2.10.4-1.amzn2023.0.6 or higher.
This issue was patched in ALAS2023-2023-411.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2-static package and not the libxml2-static package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these issues are critical enough to warrant a CVE ID ... because an attacker typically can't control when memory allocations fail."

CVSS Scores

version 3.1