[BSA-048] Security Update for Iceweasel

I uploaded new packages for iceweasel which fixed the following
security problems:

CVE-2011-2372

Mariusz Mlynski discovered that websites could open a download
dialog - which has "open" as the default action -, while a user
presses the ENTER key.

CVE-2011-2995

Benjamin Smedberg, Bob Clary and Jesse Ruderman discovered crashes
in the rendering engine, which could lead to the execution of
arbitrary code.

CVE-2011-2998

Mark Kaplan discovered an integer underflow in the javascript
engine, which could lead to the execution of arbitrary code.

CVE-2011-2999

Boris Zbarsky discovered that incorrect handling of the
window.location object could lead to bypasses of the same-origin
policy.

CVE-2011-3000

Ian Graham discovered that multiple Location headers might lead to
CRLF injection.

For the oldstable distribution (lenny), this problem has been fixed in
version 1.9.0.19-14 of the xulrunner source package. This update also
marks the compromised DigiNotar root certs as revoked rather then
untrusted.

For the lenny-backports distribution the problems have been fixed in
version 3.5.16-10~bpo50+1.

For the stable distribution (squeeze), this problem has been fixed
inversion 3.5.16-10. This update also marks the compromised DigiNotar
root certs as revoked rather then untrusted.

For the unstable distribution (sid), this problem has been fixed in
version 7.0-1.

Upgrade instructions

If you don't use pinning (see [1]) you have to update the package
manually via "apt-get -t lenny-backports install <packagelist>" with
the packagelist of your installed packages affected by this update.
[1] <http://backports.debian.org/Instructions&gt;

We recommend to pin (in /etc/apt/preferences) the backports repository to
200 so that new versions of installed backports will be installed
automatically.

Package: *
Pin: release a=lenny-backports
Pin-Priority: 200