Ubuntu Security Notice 1638-3 - USN-1638-1 fixed vulnerabilities in Firefox. The new packages introduced regressions in cookies handling and the User Agent string. This update fixes the problem.
8040f55ff3fcd6e7cbead408744e2e7ce612e82540f07127686d2b4a3663097bMandriva Linux Security Advisory 2012-173 - Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code. Security researcher Atte Kettunen from OUSPG used the Address Sanitizer tool to discover a buffer overflow while rendering GIF format images. This issue is potentially exploitable and could lead to arbitrary code execution. Various other issues were also addressed.
820a649b00028100a5269c4edfcc2cd80daf8b25e032c81ad040ddb62e795ce0Ubuntu Security Notice 1638-2 - USN-1638-1 fixed vulnerabilities in Firefox. This update provides an updated ubufox package for use with the latest Firefox. Gary Kwong, Jesse Ruderman, Christian Holler, Bob Clary, Kyle Huey, Ed Morley, Chris Lord, Boris Zbarsky, Julian Seward, Bill McCloskey, and Andrew McCreight 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. Atte Kettunen discovered a buffer overflow while rendering GIF format images. An attacker could exploit this to possibly execute arbitrary code as the user invoking Firefox. Various other issues were also addressed.
99bb7f4ae7c5cde08a7f0475af92bbd1b2a459027ddb9a137e6275eb69fa9002Ubuntu Security Notice 1638-1 - Gary Kwong, Jesse Ruderman, Christian Holler, Bob Clary, Kyle Huey, Ed Morley, Chris Lord, Boris Zbarsky, Julian Seward, Bill McCloskey, and Andrew McCreight 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. Atte Kettunen discovered a buffer overflow while rendering GIF format images. An attacker could exploit this to possibly execute arbitrary code as the user invoking Firefox. Various other issues were also addressed.
51b60eda7a1a9533853d033f01876fc9d4848a9964a22a5de8e4b86ae64b7e32Red Hat Security Advisory 2012-1482-01 - Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox. Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. A buffer overflow flaw was found in the way Firefox handled GIF images. A web page containing a malicious GIF image could cause Firefox to crash or, possibly, execute arbitrary code with the privileges of the user running Firefox.
41d5f0de55056082a8a8a48421ca2ce84dff3fece1e3ed0ffd624553420e353aRed Hat Security Advisory 2012-1483-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. Several flaws were found in the processing of malformed content. Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. A buffer overflow flaw was found in the way Thunderbird handled GIF images. Content containing a malicious GIF image could cause Thunderbird to crash or, possibly, execute arbitrary code with the privileges of the user running Thunderbird.
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