CVE-2025-4516 Affecting python-unversioned-command package, versions <0:3.9.22-1.amzn2023.0.2


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-AMZN2023-PYTHONUNVERSIONEDCOMMAND-10497917
  • published24 Jun 2025
  • disclosed15 May 2025

Introduced: 15 May 2025

CVE-2025-4516  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 python-unversioned-command to version 0:3.9.22-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2025-1033.

NVD Description

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

There is an issue in CPython when using bytes.decode(&#34;unicode_escape&#34;, error=&#34;ignore|replace&#34;). If you are not using the "unicode_escape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode() call in a try-except catching the DecodeError.

CVSS Base Scores

version 3.1