USN-1335-1: t1lib vulnerabilities

Releases

• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.10
• Ubuntu 10.04

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)

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

• libt1-5 - 5.1.2-3ubuntu0.10.04.2

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

References

• CVE-2010-2642
• CVE-2011-1554
• CVE-2011-1552
• CVE-2011-1553
• CVE-2011-0433

Related notices

• USN-1035-1: evince
• USN-1347-1: evince, libevdocument2, libevdocument3