Arbitrary Command Injection Affecting python-lxml-debuginfo package, versions <0:3.2.1-4.amzn2.0.4


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.38% (74th percentile)

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  • Snyk IDSNYK-AMZN2-PYTHONLXMLDEBUGINFO-3328388
  • published22 Feb 2023
  • disclosed13 Dec 2021

Introduced: 13 Dec 2021

CVE-2021-43818  (opens in a new tab)
CWE-77  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 python-lxml-debuginfo to version 0:3.2.1-4.amzn2.0.4 or higher.
This issue was patched in ALAS2-2023-1956.

NVD Description

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

lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.

References

CVSS Scores

version 3.1