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

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Debian Security Advisory DSA-2395-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
January 27, 2012 http://www.debian.org/security/faq
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Package : wireshark
Vulnerability : buffer underflow
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-3483 CVE-2012-0041 CVE-2012-0042 CVE-2012-0066
CVE-2012-0067 CVE-2012-0068

Laurent Butti discovered a buffer underflow in the LANalyzer dissector
of the Wireshark network traffic analyzer, which could lead to the
execution of arbitrary code (CVE-2012-0068)

This update also addresses several bugs, which can lead to crashes of
Wireshark. These are not treated as security issues, but are fixed
nonetheless if security updates are scheduled: CVE-2011-3483,
CVE-2012-0041, CVE-2012-0042, CVE-2012-0066 and CVE-2012-0067.

For the stable distribution (squeeze), this problem has been fixed in
version 1.2.11-6+squeeze6.

For the unstable distribution (sid), this problem has been fixed in
version 1.6.5-1.

We recommend that you upgrade your wireshark 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/