USN-1013-1: FreeType vulnerabilities

Ubuntu Security Notice USN-1013-1

4th November, 2010

freetype vulnerabilities

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

  • Ubuntu 10.10
  • Ubuntu 10.04 LTS
  • Ubuntu 9.10
  • Ubuntu 8.04 LTS
  • Ubuntu 6.06 LTS

Software description

  • freetype

Details

Marc Schoenefeld discovered that FreeType did not correctly handle certain
malformed font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash or possibly
execute arbitrary code with user privileges. This issue only affected
Ubuntu 6.06 LTS, 8.04 LTS, 9.10 and 10.04 LTS. (CVE-2010-3311)

Chris Evans discovered that FreeType did not correctly handle certain
malformed TrueType font files. If a user were tricked into using a
specially crafted TrueType file, a remote attacker could cause FreeType to
crash or possibly execute arbitrary code with user privileges. This issue
only affected Ubuntu 8.04 LTS, 9.10, 10.04 LTS and 10.10. (CVE-2010-3814)

It was discovered that FreeType did not correctly handle certain malformed
TrueType font files. If a user were tricked into using a specially crafted
TrueType file, a remote attacker could cause FreeType to crash or possibly
execute arbitrary code with user privileges. (CVE-2010-3855)

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 10.10:
libfreetype6 2.4.2-2ubuntu0.1
Ubuntu 10.04 LTS:
libfreetype6 2.3.11-1ubuntu2.4
Ubuntu 9.10:
libfreetype6 2.3.9-5ubuntu0.4
Ubuntu 8.04 LTS:
libfreetype6 2.3.5-1ubuntu4.8.04.6
Ubuntu 6.06 LTS:
libfreetype6 2.1.10-1ubuntu2.10

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.

References

CVE-2010-3311, CVE-2010-3814, CVE-2010-3855