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: Alin Rad Pop discovered that incorrect memory handling in the HTML parser could lead to the execution of arbitrary code. Hidetake Jo discovered that the same-origin policy can be bypassed through window.dialogArguments. Henri Sivonen, Boris Zbarsky, Zack Weinberg, Bob Clary, Martijn Wargers and Paul Nickerson reported crashes in layout engine, which might allow the execution of arbitrary code. Orlando Barrera II discovered that incorrect memory handling in the implementation of the web worker API could lead to the execution of arbitrary code. Georgi Guninski discovered that the same origin policy can be bypassed through specially crafted SVG documents.