Debian: DSA-3457-1 Critical: Iceweasel Buffer Overflow and TLS Attack

Multiple security issues have been found in Iceweasel, Debian's version
of the Mozilla Firefox web browser: Multiple memory safety errors and a
buffer overflow may lead to the execution of arbitrary code. In addition
the bundled NSS crypto library addresses the SLOTH attack on TLS 1.2.

For the oldstable distribution (wheezy), these problems have been fixed
in version 38.6.0esr-1~deb7u1.

For the stable distribution (jessie), these problems have been fixed in
version 38.6.0esr-1~deb8u1.

For the unstable distribution (sid), these problems have been fixed in
version 44.0-1.

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: https://www.debian.org/security/