Debian: DSA-3018-1 Critical Iceweasel Memory Safety Update

Multiple security issues have been found in Iceweasel, Debian's version
of the Mozilla Firefox web browser: Multiple memory safety errors and
use-after-frees may lead to the execution of arbitrary code or denial
of service.

For the stable distribution (wheezy), these problems have been fixed in
version 24.8.0esr-1~deb7u1.

For the unstable distribution (sid), these problems have been fixed in
version 31.1.0esr-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: https://www.debian.org/security/