CVE-2025-6966 - Vulnerability Details - OpenCVE

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.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

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

History

Fri, 05 Dec 2025 14:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 05 Dec 2025 13:15:00 +0000

Type	Values Removed	Values Added
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.
Title		Null-pointer dereference in python-apt TagSection.keys()
Weaknesses		CWE-476
References		https://bugs.launchpad.net/ubuntu/+source/python-apt/+bug/2091865
Metrics		cvssV4_0 `{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: canonical

Published: 2025-12-05T12:59:41.320Z

Updated: 2025-12-05T14:01:38.476Z

Reserved: 2025-07-01T09:59:55.552Z

Link: CVE-2025-6966

Vulnrichment

Updated: 2025-12-05T14:01:34.435Z

NVD

Status : Received

Published: 2025-12-05T13:16:05.220

Modified: 2025-12-05T13:16:05.220

Link: CVE-2025-6966

Redhat

No data.

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