iceweasel - security update

Multiple security issues have been found in Iceweasel, Debian’s version
of the Mozilla Firefox web browser: Multiple memory safety errors,
integer overflows, buffer overflows and other implementation errors may
lead to the execution of arbitrary code, information disclosure or
denial of service.

For the oldstable distribution (wheezy), these problems have been fixed
in version 38.4.0esr-1~deb7u1.

For the stable distribution (jessie), these problems have been fixed in
version 38.4.0esr-1~deb8u1.

For the unstable distribution (sid), these problems have been fixed in
version 38.4.0esr-1.

We recommend that you upgrade your iceweasel packages.