[USN-546-2] Firefox regression

Ubuntu Security Notice USN-546-2          December 04, 2007
firefox regression
https://bugzilla.mozilla.org/show_bug.cgi?id

Ubuntu 6.10
Ubuntu 7.04
Ubuntu 7.10

Ubuntu 6.10

firefox 2.0.0.11+0nobinonly-0ubuntu0.6.10

Ubuntu 7.10

firefox 2.0.0.11+2nobinonly-0ubuntu0.7.10

Ubuntu 7.04

firefox 2.0.0.11+1nobinonly-0ubuntu0.7.4

After a standard system upgrade you need to restart Firefox to effect the necessary changes.

USN-546-1 fixed vulnerabilities in Firefox. The upstream update included a faulty patch which caused the drawImage method of the canvas element to fail. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that Firefox incorrectly associated redirected sites as the origin of "jar:" contents. A malicious web site could exploit this to modify or steal confidential data (such as passwords) from other web sites. (CVE-2007-5947) Various flaws were discovered in the layout and JavaScript engines. By tricking a user into opening a malicious web page, an attacker could execute arbitrary code with the user's privileges. (CVE-2007-5959) Gregory Fleischer discovered that it was possible to use JavaScript to manipulate Firefox's Referer header. A malicious web site could exploit this to conduct cross-site request forgeries against sites that relied only on Referer headers for protection from such attacks. (CVE-2007-5960)