Ubuntu Security Notice USN-1960-1
18th September, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
Software Properties could be tricked into bypassing polkit authorizations.
- software-properties - manage the repositories that you install software from
It was discovered that Software Properties was using polkit in an unsafe
manner. A local attacker could possibly use this issue to bypass intended
The problem can be corrected by updating your system to the following package version:
- Ubuntu 13.04:
- software-properties-common 0.92.17.3
- Ubuntu 12.10:
- software-properties-common 0.92.9.3
- Ubuntu 12.04 LTS:
- software-properties-common 0.82.7.5
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.