Several remote vulnerabilities have been discovered in Xulrunner, a runtime environment for XUL applications, such as the Iceweasel web browser. The Common Vulnerabilities and Exposures project identifies the following problems:
Martijn Wargers, Arno Renevier, Jesse Ruderman, Olli Pettay and Blake Kaplan discovered several issues in the browser engine that could potentially lead to the execution of arbitrary code. (MFSA 2009-34)
monarch2020 reported an integer overflow in a base64 decoding function. (MFSA 2009-34)
Christophe Charron reported a possibly exploitable crash occurring when multiple RDF files were loaded in a XUL tree element. (MFSA 2009-34)
Yongqian Li reported that an unsafe memory condition could be created by specially crafted document. (MFSA 2009-34)
Attila Suszter discovered an issue related to a specially crafted Flash object, which could be used to run arbitrary code. (MFSA 2009-35)
PenPal discovered that it is possible to execute arbitrary code via a specially crafted SVG element. (MFSA 2009-37)
For the stable distribution (lenny), these problems have been fixed in version 18.104.22.168-0lenny1.
As indicated in the Etch release notes, security support for the Mozilla products in the oldstable distribution needed to be stopped before the end of the regular Etch security maintenance life cycle. You are strongly encouraged to upgrade to stable or switch to a still supported browser.
For the testing distribution (squeeze), these problems will be fixed soon.
For the unstable distribution (sid), these problems have been fixed in version 22.214.171.124-1.
We recommend that you upgrade your xulrunner packages.