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python-apt NULL Pointer Dereference Vulnerability Leading to Denial-of-Service

Vulnerability

A NULL pointer dereference vulnerability has been identified in the python-apt package on APT-based Linux systems. This issue allows a local attacker to cause a process crash by using a crafted deb822 file that contains a malformed non-UTF-8 key.

Impact

Exploitation of this vulnerability leads to a process crash, causing a denial-of-service condition.

Added: Dec 5, 2025, 2:47 PM
Updated: Dec 5, 2025, 2:47 PM

Vulnerability Rating

Custom Algorithm
spread
6.6
impact
2.5
exploitability
3.3
remediation
0.0
relevance
1.3
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.