A t1lib security update has been released for Debian GNU/Linux

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Debian Security Advisory DSA-2388-1 security@debian.org
http://www.debian.org/security/ Yves-Alexis Perez
January 14, 2012 http://www.debian.org/security/faq
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Package : t1lib
Vulnerability : several
Problem type : local
Debian-specific: no
CVE ID : CVE-2010-2642 CVE-2011-0433 CVE-2011-0764 CVE-2011-1552
CVE-2011-1553 CVE-2011-1554
Debian Bug : 652996

Several vulnerabilities were discovered in t1lib, a Postscript Type 1
font rasterizer library, some of which might lead to code execution
through the opening of files embedding bad fonts.

CVE-2010-2642
A heap-based buffer overflow in the AFM font metrics parser
potentially leads to the execution of arbitrary code.

CVE-2011-0433
Another heap-based buffer overflow in the AFM font metrics
parser potentially leads to the execution of arbitrary code.

CVE-2011-0764
An invalid pointer dereference allows execution of arbitrary
code using crafted Type 1 fonts.

CVE-2011-1552
Another invalid pointer dereference results in an application
crash, triggered by crafted Type 1 fonts.

CVE-2011-1553
A use-after-free vulnerability results in an application
crash, triggered by crafted Type 1 fonts.

CVE-2011-1554
An off-by-one error results in an invalid memory read and
application crash, triggered by crafted Type 1 fonts.

For the oldstable distribution (lenny), this problem has been fixed in
version 5.1.2-3+lenny1.

For the stable distribution (squeeze), this problem has been fixed in
version 5.1.2-3+squeeze1.

For the testing distribution (wheezy), this problem has been fixed in
version 5.1.2-3.3.

For the unstable distribution (sid), this problem has been fixed in
version 5.1.2-3.3.

We recommend that you upgrade your t1lib packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/