Several remote vulnerabilities have been discovered in the Iceweasel webbrowser, an unbranded version of the Firefox browser. The Common Vulnerabilities and Exposures project identifies the following problems:
Justin Schuh discovered that a buffer overflow in the http-index-format parser could lead to arbitrary code execution.
Liu Die Yu discovered an information leak through local shortcut files.
Georgi Guninski, Michal Zalewski and Chris Evan discovered that the canvas element could be used to bypass same-origin restrictions.
It was discovered that insufficient checks in the Flash plugin glue code could lead to arbitrary code execution.
Jesse Ruderman discovered that a programming error in the window.__proto__.__proto__ object could lead to arbitrary code execution.
It was discovered that crashes in the layout engine could lead to arbitrary code execution.
It was discovered that crashes in the Javascript engine could lead to arbitrary code execution.
It was discovered that a crash in the nsFrameManager might lead to the execution of arbitrary code.
moz_bug_r_a4
discovered that the same-origin check in
nsXMLHttpRequest::NotifyEventListeners() could be bypassed.
Collin Jackson discovered that the -moz-binding property bypasses security checks on codebase principals.
Chris Evans discovered that quote characters were improperly escaped in the default namespace of E4X documents.
For the stable distribution (etch), these problems have been fixed in version 2.0.0.18-0etch1.
For the upcoming stable distribution (lenny) and the unstable distribution (sid), these problems have been fixed in version 3.0.4-1 of iceweasel and version 1.9.0.4-1 of xulrunner. Packages for arm and mips will be provided soon.
We recommend that you upgrade your iceweasel package.
MD5 checksums of the listed files are available in the original advisory.