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==========================================================================
Ubuntu Security Notice USN-1335-1
January 19, 2012

t1lib vulnerabilities
==========================================================================

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

- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS

Summary:

t1lib could be made to crash or run programs as your login if it opened a
specially crafted font file.

Software Description:
- t1lib: Type 1 font rasterizer library - runtime

Details:

Jon Larimer discovered that t1lib did not properly parse AFM fonts. If a
user were tricked into using a specially crafted font file, a remote
attacker could cause t1lib to crash or possibly execute arbitrary code with
user privileges. (CVE-2010-2642, CVE-2011-0433)

Jonathan Brossard discovered that t1lib 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 t1lib to crash. (CVE-2011-1552,
CVE-2011-1553, CVE-2011-1554)

Update instructions:

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

Ubuntu 11.10:
  libt1-5                         5.1.2-3ubuntu0.11.10.2

Ubuntu 11.04:
  libt1-5                         5.1.2-3ubuntu0.11.04.2

Ubuntu 10.10:
  libt1-5                         5.1.2-3ubuntu0.10.10.2

Ubuntu 10.04 LTS:
  libt1-5                         5.1.2-3ubuntu0.10.04.2

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1335-1
  CVE-2010-2642, CVE-2011-0433, CVE-2011-1552, CVE-2011-1553,
  CVE-2011-1554

Package Information:
  https://launchpad.net/ubuntu/+source/t1lib/5.1.2-3ubuntu0.11.10.2
  https://launchpad.net/ubuntu/+source/t1lib/5.1.2-3ubuntu0.11.04.2
  https://launchpad.net/ubuntu/+source/t1lib/5.1.2-3ubuntu0.10.10.2
  https://launchpad.net/ubuntu/+source/t1lib/5.1.2-3ubuntu0.10.04.2



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