Debian: DSA-2488-1 Urgent: Iceweasel Vulnerabilities and Malware Threats

CVE-2012-1937

Mozilla developers discovered several memory corruption bugs,
which may lead to the execution of arbitrary code.

CVE-2012-1940

Abhishek Arya discovered a use-after-free problem when working
with column layout with absolute positioning in a container that
changes size, which may lead to the execution of arbitrary code.

CVE-2012-1947

Abhishek Arya discovered a heap buffer overflow in utf16 to latin1
character set conersion, allowing to execute arbitray code.


Note: We'd like to advise users of Iceweasel's 3.5 branch in Debian
stable to consider to upgrade to the Iceweasel 10.0 ESR (Extended
Support Release) which is now availble in Debian Backports.
Although Debian will continue to support Iceweasel 3.5 in stable with
security updates, this can only be done on a best effort base as
upstream provides no such support anymore. On top of that, the 10.0
branch adds proactive security features to the browser.

For the stable distribution (squeeze), this problem has been fixed in
ver...