Ubuntu Security Notice USN-1959-1
18th September, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
RealtimeKit could be tricked into bypassing polkit authorizations.
- rtkit - Realtime Policy and Watchdog Daemon
It was discovered that RealtimeKit was using polkit in an unsafe manner. A
local attacker could possibly use this issue to bypass intended polkit
The problem can be corrected by updating your system to the following package version:
- Ubuntu 13.04:
- rtkit 0.10-2ubuntu0.13.04.1
- Ubuntu 12.10:
- rtkit 0.10-2ubuntu0.12.10.1
- Ubuntu 12.04 LTS:
- rtkit 0.10-2ubuntu0.12.04.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make
all the necessary changes.