Ubuntu Security Notice USN-1668-1
17th December, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
A hardening measure was added to apport.
- apport - automatically generate crash reports for debugging
Dan Rosenberg discovered that an application running under an AppArmor
profile that allowed unconfined execution of apport-bug could escape
confinement by calling apport-bug with a crafted environment. While not a
vulnerability in apport itself, this update mitigates the issue by
sanitizing certain variables in the apport-bug shell script.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.04 LTS:
- apport 2.0.1-0ubuntu15.1
- Ubuntu 11.10:
- apport 1.23-0ubuntu4.1
- Ubuntu 10.04 LTS:
- apport 1.13.3-0ubuntu2.2
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.