xulrunner - multiple vulnerabilities

Several remote vulnerabilities have been discovered in Xulrunner, a
runtime environment for XUL applications, such as the Iceweasel web
browser. The Common Vulnerabilities and Exposures project identifies
the following problems:

• CVE-2009-1169
  Security researcher Guido Landi discovered that a XSL stylesheet could
  be used to crash the browser during a XSL transformation. An attacker
  could potentially use this crash to run arbitrary code on a victim’s
  computer.
• CVE-2009-1044
  Security researcher Nils reported via TippingPoint’s Zero Day Initiative
  that the XUL tree method _moveToEdgeShift was in some cases triggering
  garbage collection routines on objects which were still in use. In such
  cases, the browser would crash when attempting to access a previously
  destroyed object and this crash could be used by an attacker to run
  arbitrary code on a victim’s computer.

Note that after installing these updates, you will need to restart any
packages using xulrunner, typically iceweasel or epiphany.

As indicated in the Etch release notes, security support for the
Mozilla products in the oldstable distribution needed to be stopped
before the end of the regular Etch security maintenance life cycle.
You are strongly encouraged to upgrade to stable or switch to a still
supported browser.

For the stable distribution (lenny), these problems have been fixed in version
1.9.0.7-0lenny2.

For the unstable distribution (sid), these problems have been fixed in
version 1.9.0.8-1

We recommend that you upgrade your xulrunner package.