USN-3063-1: Fontconfig vulnerability
Ubuntu Security Notice USN-3063-1
17th August, 2016
fontconfig vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Fontconfig be made to crash or run programs if it opened a specially crafted file.
Software description
- fontconfig - generic font configuration library
Details
Tobias Stoeckmann discovered that Fontconfig incorrectly handled cache
files. A local attacker could possibly use this issue with a specially
crafted cache file to elevate privileges.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 16.04 LTS:
- fontconfig 2.11.94-0ubuntu1.1
- libfontconfig1 2.11.94-0ubuntu1.1
- Ubuntu 14.04 LTS:
- fontconfig 2.11.0-0ubuntu4.2
- libfontconfig1 2.11.0-0ubuntu4.2
- Ubuntu 12.04 LTS:
- fontconfig 2.8.0-3ubuntu9.2
- libfontconfig1 2.8.0-3ubuntu9.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart your session to make
all the necessary changes.