USN-1676-1: AppArmor update
19 December 2012
AppArmor update
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
Summary
A weakness was discovered in the example AppArmor profile for chromium-browser.
Software Description
- apparmor - Linux security system
Details
Dan Rosenberg discovered that the example AppArmor profile for chromium-browser could be escaped by calling xdg-settings with a crafted environment.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 12.04 LTS
- apparmor-profiles - 2.7.102-0ubuntu3.7
- Ubuntu 11.10
- apparmor-profiles - 2.7.0~beta1+bzr1774-1ubuntu2.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.