Ubuntu 11.10: USN-1267-1 Critical: FreeType Code Execution Risk

ubuntu

November 18, 2011

FreeType could be made to crash or run programs as your login if itopened a specially crafted font file.

Summary

FreeType could be made to crash or run programs as your login if it

opened a specially crafted font file.

Software Description:

- freetype: FreeType 2 is a font engine library

Details:

It was discovered that FreeType did not correctly handle certain malformed

Type 1 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. (CVE-2011-3256)

It was discovered that FreeType did not correctly handle certain malformed

CID-keyed PostScript 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. (CVE-2011-3439)

Topics Covered

security advisory software update code execution Ubuntu critical advisory execution risk FreeType

Update Instructions

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

Ubuntu 11.10:
  libfreetype6                    2.4.4-2ubuntu1.1

Ubuntu 11.04:
  libfreetype6                    2.4.4-1ubuntu2.2

Ubuntu 10.10:
  libfreetype6                    2.4.2-2ubuntu0.3

Ubuntu 10.04 LTS:
  libfreetype6                    2.3.11-1ubuntu2.5

Ubuntu 8.04 LTS:
  libfreetype6                    2.3.5-1ubuntu4.8.04.7

After a standard system update you need to restart your session to make
all the necessary changes.