Ubuntu Security Notice 1686-1 - Mateusz Jurczyk discovered that FreeType did not correctly handle certain malformed BDF 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.
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Ubuntu Security Notice USN-1686-1
January 14, 2013
freetype vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Summary:
FreeType could be made to crash or run programs as your login if it opened
a specially crafted file.
Software Description:
- freetype: FreeType 2 is a font engine library
Details:
Mateusz Jurczyk discovered that FreeType did not correctly handle certain
malformed BDF 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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.10:
libfreetype6 2.4.10-0ubuntu1.1
Ubuntu 12.04 LTS:
libfreetype6 2.4.8-1ubuntu2.1
Ubuntu 11.10:
libfreetype6 2.4.4-2ubuntu1.3
Ubuntu 10.04 LTS:
libfreetype6 2.3.11-1ubuntu2.7
Ubuntu 8.04 LTS:
libfreetype6 2.3.5-1ubuntu4.8.04.10
After a standard system update you need to restart your session to make all
the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1686-1
CVE-2012-5668, CVE-2012-5669, CVE-2012-5670
Package Information:
https://launchpad.net/ubuntu/+source/freetype/2.4.10-0ubuntu1.1
https://launchpad.net/ubuntu/+source/freetype/2.4.8-1ubuntu2.1
https://launchpad.net/ubuntu/+source/freetype/2.4.4-2ubuntu1.3
https://launchpad.net/ubuntu/+source/freetype/2.3.11-1ubuntu2.7
https://launchpad.net/ubuntu/+source/freetype/2.3.5-1ubuntu4.8.04.10