Ubuntu Security Notice 1681-4 - USN-1681-1 fixed vulnerabilities in Firefox. Due to an upstream regression, Firefox suffered from instabilities when accessing some websites. This update fixes the problem. Christoph Diehl, Christian Holler, Mats Palmgren, Chiaki Ishikawa, Bill Gianopoulos, Benoit Jacob, Gary Kwong, Robert O'Callahan, Jesse Ruderman, and Julian Seward discovered multiple memory safety issues affecting Firefox. If the user were tricked into opening a specially crafted page, an attacker could possibly exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. Various other issues were also addressed.
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