Use After Free Affecting python3-libxml2-python package, versions <2.9.7-3.31.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.09% (39th percentile)

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  • Snyk IDSNYK-SLES153-PYTHON3LIBXML2PYTHON-2680957
  • published14 Apr 2022
  • disclosed5 May 2021

Introduced: 5 May 2021

CVE-2021-3516  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 python3-libxml2-python to version 2.9.7-3.31.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-libxml2-python package and not the python3-libxml2-python package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.

CVSS Scores

version 3.1