<p>Upgrade <code>Amazon-Linux:2</code> <code>libxml2</code> to version 0:2.9.1-6.amzn2.5.13 or higher.<br>This issue was patched in <code>ALAS2-2023-2321</code>.</p>

Use After Free Affecting libxml2 package, versions <0:2.9.1-6.amzn2.5.13

Snyk CVSS

Attack Complexity High

Availability High

Threat Intelligence

EPSS 0.05% (18^th percentile)

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Snyk ID SNYK-AMZN2-LIBXML2-6043103
published 2 Nov 2023
disclosed 6 Oct 2023

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Introduced: 6 Oct 2023

CVE-2023-45322 Open this link in a new tab CWE-416 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 libxml2 to version 0:2.9.1-6.amzn2.5.13 or higher.
This issue was patched in ALAS2-2023-2321.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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."