Ubuntu Update for Linux kernel vulnerabilities USN-1548-2

Please Install the Updated Packages.

USN-1548-1 fixed vulnerabilities in Firefox. The new package caused a regression in Private Browsing which could leak sites visited to the browser cache. This update fixes the problem. Original advisory details: Gary Kwong, Christian Holler, Jesse Ruderman, Steve Fink, Bob Clary, Andrew Sutherland, Jason Smith, John Schoenick, Vladimir Vukicevic and Daniel Holbert discovered memory safety issues affecting Firefox. If the user were tricked into opening a specially crafted page, an attacker could exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2012-1970, CVE-2012-1971) Abhishek Arya discovered multiple use-after-free vulnerabilities. If the user were tricked into opening a specially crafted page, an attacker could exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2012-1972, CVE-2012-1973, CVE-2012-1974, CVE-2012-1975, CVE-2012-1976, CVE-2012-3956, CVE-2012-3957, CVE-2012-3958, CVE-2012-3959, CVE-2012-3960, CVE-2012-3961, CVE-2012-3962, CVE-2012-3963, CVE-2012-3964) Mariusz Mlynsk discovered that it is possible to shadow the location object using Object.defineProperty. This could potentially result in a cross-site scripting (XSS) attack against plugins. With cross-site scripting vulnerabilities, if a user were tricked into viewing a specially crafted page, a remote attacker could exploit this to modify the contents or steal confidential data within the same domain. (CVE-2012-1956) Mariusz Mlynski discovered an escalation of privilege vulnerability through about:newtab. This could possibly lead to potentially code execution with the privileges of the user invoking Firefox. (CVE-2012-3965) Fr&#233 d&#233 ric Hoguin discovered that bitmap format images with a negative height could potentially result in memory corruption. If the user were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. (CVE-2012-3966) It was discovered that Firefox's WebGL implementation was vulnerable to multiple memory safety issues. If the user were tricked into opening a specially crafted page, an attacker could exploit these to cause a denial of service via application crash, or potentially execute code with the privileges ... Description truncated, for more information please check the Reference URL

firefox on Ubuntu 12.04 LTS , Ubuntu 11.10 , Ubuntu 11.04 , Ubuntu 10.04 LTS