We’re happy to confirm that we received a valid exploit from returning pwner, Pinkie Pie. This pwn relies on a WebKit Scalable Vector Graphics (SVG) compromise to exploit the renderer process and a second bug in the IPC layer to escape the Chrome sandbox. Since this exploit depends entirely on bugs within Chrome to achieve code execution, it qualifies for our highest award level as a “full Chrome exploit,” a $60,000 prize and free Chromebook.
One of Chrome’s most effective security defenses is our fast response time and ability to update users with critical patches, quickly. These bugs were no exception. We started analyzing the exploit as soon as it was submitted, and in fewer than 10 hours after Pwnium 2 concluded we were updating users with a freshly patched version of Chrome.
Google fixes Chrome leak in fewer than 10 hours
Posted on Thursday, October 11 2012 @ 20:02 CEST by Thomas De Maesschalck