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Fedora 43 mingw-python3 Addresses Critical DoS Vulnerability CVE-2025-12084

fedora
Calendar Grey December 23, 2025
Dist Fedora Esm H88
Critical update for mingw-python3 in Fedora 43 to fix CVE-2025-12084 with denial of service threat.
Backport fix for CVE-2025-12084.

Summary

MinGW Windows python3

Update Information:

Backport fix for CVE-2025-12084.

Topics%20covered

Topics Covered

security advisory fedora DoS mingw-python3 backport fix cve-2025-12084

Change Log

* Sun Dec 14 2025 Sandro Mani - 3.11.14-4 - Backport patch for CVE-2025-12084

References


[ 1 ] Bug #2421623 - CVE-2025-12084 mingw-python3: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2421623 [ 2 ] Bug #2421642 - CVE-2025-12084 mingw-python3: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2421642

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-883181272e' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
critical
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Critical

Name: mingw-python3
Product: Fedora 43
Version: 3.11.14
Release: 4.fc43
URL: https://www.python.org/
Summary: MinGW Windows python3

Topics%20covered

Topics Covered

security advisory fedora DoS mingw-python3 backport fix cve-2025-12084

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