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AUSCERT External Security Bulletin Redistribution
ESB-2011.1274
t1lib vulnerability
22 December 2011
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: t1lib
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2011-0764
Original Bulletin:
http://www.ubuntu.com/usn/usn-1316-1
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running t1lib check for an updated version of the software for their
operating system.
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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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===========================================================================
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