An iceweasel security update has been released for Debian GNU/Linux

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Debian Security Advisory DSA-2433-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
March 15, 2012 http://www.debian.org/security/faq
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Package : iceweasel
Vulnerability : several
Problem type : remote
Debian-specific: no
CVE ID : CVE-2012-0455 CVE-2012-0456 CVE-2012-0458 CVE-2012-0461

Several vulnerabilities have been discovered in Iceweasel, a web browser
based on Firefox. The included XULRunner library provides rendering
services for several other applications included in Debian.

CVE-2012-0455

Soroush Dalili discovered that a cross-site scripting countermeasure
related to Javascript URLs could be bypassed.

CVE-2012-0456

Atte Kettunen discovered an out of bounds read in the SVG Filters,
resulting in memory disclosure.

CVE-2012-0458

Mariusz Mlynski discovered that privileges could be escalated through
a Javascript URL as the home page.

CVE-2012-0461

Bob Clary discovered memory corruption bugs, which may lead to the
execution of arbitrary code.

For the stable distribution (squeeze), this problem has been fixed in
version 3.5.16-13.

For the unstable distribution (sid), this problem has been fixed in
version 10.0.3esr-1.

For the experimental distribution, this problem has been fixed in
version 11.0-1.

We recommend that you upgrade your iceweasel 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/