Ubuntu Update for Firefox 3.0 and Xulrunner vulnerabilities USN-920-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-920-1
Solution
Please Install the Updated Packages.
Insight
Martijn Wargers, Josh Soref, Jesse Ruderman, and Ehsan Akhgari discovered flaws in the browser engine of Firefox. If a user were tricked into viewing a malicious website, a remote attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2010-0174) It was discovered that Firefox could be made to access previously freed memory. If a user were tricked into viewing a malicious website, a remote attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2010-0175, CVE-2010-0176, CVE-2010-0177) Paul Stone discovered that Firefox could be made to change a mouse click into a drag and drop event. If the user could be tricked into performing this action twice on a crafted website, an attacker could execute arbitrary JavaScript with chrome privileges. (CVE-2010-0178) It was discovered that the XMLHttpRequestSpy module as used by the Firebug add-on could be used to escalate privileges within the browser. If the user had the Firebug add-on installed and were tricked into viewing a malicious website, an attacker could potentially run arbitrary JavaScript. (CVE-2010-0179)
Affected
Firefox 3.0 and Xulrunner vulnerabilities on Ubuntu 8.04 LTS , Ubuntu 8.10 , Ubuntu 9.04