USN-3398-1: graphite2 vulnerabilities
21 August 2017
graphite2 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
graphite2 could be made to crash or run programs if it opened a specially crafted font.
Software Description
- graphite2 - Font rendering engine for Complex Scripts
Details
Holger Fuhrmannek and Tyson Smith discovered that graphite2 incorrectly handled certain malformed fonts. If a user or automated system were tricked into opening a specially-crafted font file, a remote attacker could use this issue to cause graphite2 to crash, resulting in a denial of service, or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 17.04
- libgraphite2-3 - 1.3.10-0ubuntu0.17.04.1
- Ubuntu 16.04 LTS
- libgraphite2-3 - 1.3.10-0ubuntu0.16.04.1
- Ubuntu 14.04 LTS
- libgraphite2-3 - 1.3.10-0ubuntu0.14.04.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
This update uses a new upstream release, which includes additional bug fixes. After a standard system update you need to restart applications using graphite2, such as LibreOffice, to make all the necessary changes.