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Ubuntu Security Notice USN-1316-1

Ubuntu Security Notice USN-1316-1
Posted Dec 21, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1316-1 - 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 or possibly execute arbitrary code with user privileges.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2011-0764
SHA-256 | 70fc8a23e9714c5972c4c937a393b4065ee9b324fc17ba3e3de0f2b5c50e3f77

Ubuntu Security Notice USN-1316-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-1316-1
December 21, 2011

t1lib vulnerability
==========================================================================

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:

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 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 11.10:
libt1-5 5.1.2-3ubuntu0.11.10.1

Ubuntu 11.04:
libt1-5 5.1.2-3ubuntu0.11.04.1

Ubuntu 10.10:
libt1-5 5.1.2-3ubuntu0.10.10.1

Ubuntu 10.04 LTS:
libt1-5 5.1.2-3ubuntu0.10.04.1

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

References:
http://www.ubuntu.com/usn/usn-1316-1
CVE-2011-0764

Package Information:
https://launchpad.net/ubuntu/+source/t1lib/5.1.2-3ubuntu0.11.10.1
https://launchpad.net/ubuntu/+source/t1lib/5.1.2-3ubuntu0.11.04.1
https://launchpad.net/ubuntu/+source/t1lib/5.1.2-3ubuntu0.10.10.1
https://launchpad.net/ubuntu/+source/t1lib/5.1.2-3ubuntu0.10.04.1

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