iceweasel - security update

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

For the oldstable distribution (wheezy), these problems have been fixed
in version 31.7.0esr-1~deb7u1.

For the stable distribution (jessie), these problems have been fixed in
version 31.7.0esr-1~deb8u1.

For the unstable distribution (sid), these problems have been fixed in
version 38.0-1.

We recommend that you upgrade your iceweasel packages.