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-2011-3647
  moz_bug_r_a4 discovered a privilege escalation vulnerability in
  addon handling.
• CVE-2011-3648
  Yosuke Hasegawa discovered that incorrect handling of Shift-JIS
  encodings could lead to cross-site scripting.
• CVE-2011-3650
  Marc Schoenefeld discovered that profiling the JavaScript code
  could lead to memory corruption.

For the oldstable distribution (lenny), this problem has been fixed in
version 1.9.0.19-15 of the xulrunner source package.

For the stable distribution (squeeze), this problem has been fixed in
version 3.5.16-11.

For the unstable distribution (sid), this problem has been fixed in
version 8.0-1.

We recommend that you upgrade your iceweasel packages.