freetype vulnerabilities

4 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

Summary

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 versions:

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