CVE-2025-6966

Severity CVSS v4.0:

MEDIUM

Type:

CWE-476 NULL Pointer Dereference

Publication date:

05/12/2025

Last modified:

05/12/2025

Description

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

Impact

Vector 4.0

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 CVSS v4.0 Severity and Metrics:

Base Score: 6.90 MEDIUM
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

Attack Vector (AV): Local
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0

6.90

Severity 4.0

MEDIUM

References to Advisories, Solutions, and Tools

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