Ubuntu Linux AppArmor Notification Handling Vulnerability Allowing Response Caching Issues

Vulnerability

A vulnerability exists in Ubuntu Linux versions 6.8, 7.17, and 7.0, where AppArmor SAUCE patches can lead to the use of an uninitialized variable in the notification handling process. This issue, which can be exploited by an unprivileged local user, may cause incorrect caching of AppArmor notification responses.

Impact

Exploitation of this vulnerability can lead to improper caching of AppArmor notification responses, potentially causing unintended behavior in application confinement.

Added: May 28, 2026, 8:37 PM
Updated: May 28, 2026, 8:37 PM

Vulnerability Rating

Custom Algorithm
spread
7.8
impact
2.5
exploitability
4.0
remediation
0.0
relevance
9.2
threat
3.2
urgency
2.9
incentive
0.0

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