Ubuntu 14.04 LTS: USN-2211-1 Critical: LibXfont Execution Risk

ubuntu

May 14, 2014

Several security issues were fixed in libXfont.

Summary

Several security issues were fixed in libXfont.

Software Description:

- libxfont: X11 font rasterisation library

Details:

Ilja van Sprundel discovered that libXfont incorrectly handled font

metadata file parsing. A local attacker could use this issue to cause

libXfont to crash, or possibly execute arbitrary code in order to gain

privileges. (CVE-2014-0209)

Ilja van Sprundel discovered that libXfont incorrectly handled X Font

Server replies. A malicious font server could return specially-crafted data

that could cause libXfont to crash, or possibly execute arbitrary code.

This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, Ubuntu 12.10

and Ubuntu 13.10. (CVE-2014-0210, CVE-2014-0211)

Topics Covered

security advisory critical code execution ubuntu libxfont

Update Instructions

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

Ubuntu 14.04 LTS:
  libxfont1                       1:1.4.7-1ubuntu0.1

Ubuntu 13.10:
  libxfont1                       1:1.4.6-1ubuntu0.2

Ubuntu 12.10:
  libxfont1                       1:1.4.5-2ubuntu0.12.10.2

Ubuntu 12.04 LTS:
  libxfont1                       1:1.4.4-1ubuntu0.2

Ubuntu 10.04 LTS:
  libxfont1                       1:1.4.1-1ubuntu0.3

After a standard system update you need to reboot your computer to make
all the necessary changes.