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-2010-1585
  Roberto Suggi Liverani discovered that the sanitising performed by
  ParanoidFragmentSink was incomplete.
• CVE-2011-0051
  Zach Hoffmann discovered that incorrect parsing of recursive eval()
  calls could lead to attackers forcing acceptance of a confirmation
  dialogue.
• CVE-2011-0053
  Crashes in the layout engine may lead to the execution of arbitrary
  code.
• CVE-2011-0054,
  CVE-2010-0056
  Christian Holler discovered buffer overflows in the Javascript engine,
  which could allow the execution of arbitrary code.
• CVE-2011-0055
  regenrecht and Igor Bukanov discovered a use-after-free error in the
  JSON-Implementation, which could lead to the execution of arbitrary code.
• CVE-2011-0057
  Daniel Kozlowski discovered that incorrect memory handling the web workers
  implementation could lead to the execution of arbitrary code.
• CVE-2011-0059
  Peleus Uhley discovered a cross-site request forgery risk in the plugin
  code.

For the oldstable distribution (lenny), this problem has been fixed in
version 1.9.0.19-8 of the xulrunner source package.

For the stable distribution (squeeze), this problem has been fixed in
version 3.5.16-5.

For the unstable distribution (sid), this problem has been fixed in
version 3.5.17-1.

We recommend that you upgrade your iceweasel packages.