USN-2902-1: graphite2 vulnerabilities

17 February 2016

graphite2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 15.10
  • Ubuntu 14.04 LTS

Summary

graphite2 could be made to crash or run programs as your login if it opened a specially crafted font.

Software Description

  • graphite2 - Font rendering engine for Complex Scripts

Details

Yves Younan 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 15.10
libgraphite2-3 - 1.2.4-3ubuntu1.1
Ubuntu 14.04 LTS
libgraphite2-3 - 1.2.4-1ubuntu1.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart applications using graphite2, such as LibreOffice, to make all the necessary changes.

References