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USN-1335-1: t1lib vulnerabilities

19 January 2012

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

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Releases

Packages

  • 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)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 11.10
Ubuntu 11.04
Ubuntu 10.10
Ubuntu 10.04

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

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