iceweasel - several

Several vulnerabilities have been discovered in Iceweasel, a web
browser based on Firefox. The included XULRunner library provides
rendering services for several other applications included in Debian.

• CVE-2012-0467
  Bob Clary, Christian Holler, Brian Hackett, Bobby Holley, Gary
  Kwong, Hilary Hall, Honza Bambas, Jesse Ruderman, Julian Seward,
  and Olli Pettay discovered memory corruption bugs, which may lead
  to the execution of arbitrary code.
• CVE-2012-0470
  Atte Kettunen discovered that a memory corruption bug in
  gfxImageSurface may lead to the execution of arbitrary code.
• CVE-2012-0471
  Anne van Kesteren discovered that incorrect multibyte character
  encoding may lead to cross-site scripting.
• CVE-2012-0477
  Masato Kinugawa discovered that incorrect encoding of
  Korean and Chinese character sets may lead to cross-site scripting.
• CVE-2012-0479
  Jeroen van der Gun discovered a spoofing vulnerability in the
  presentation of Atom and RSS feeds over HTTPS.

For the stable distribution (squeeze), this problem has been fixed in
version 3.5.16-15.

For the unstable distribution (sid), this problem has been fixed in
version 10.0.4esr-1.

For the experimental distribution, this problem will be fixed soon.

We recommend that you upgrade your iceweasel packages.