CVE-2025-6966

Published: Dec 5, 2025

Modified: Dec 15, 2025

PUBLISHED

Description

NULL pointer dereference in TagSection.keys() in python-apt on APT-based Linux systems allows a local attacker to cause a denial of service (process crash) via a crafted deb822 file with a malformed non-UTF-8 key.

Vendor	Product	Versions
Canonical	python-apt	affected `3.0 - < 3.0.0ubuntu1.1` affected `3.0 - < 3.0.0ubuntu0.25.04.1` affected `2.7 - < 2.7.7ubuntu5.1` affected `2.4 - < 2.4.0ubuntu4.1` affected `2.0 - < 2.0.1ubuntu0.20.04.1+esm1` +3 more versions

Weaknesses (CWE)

CWE-476

References

https://bugs.launchpad.net/ubuntu/+source/python-apt/+bug/2091865

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CVE-2025-6966

Description

Affected Products

Weaknesses (CWE)

References