Ubuntu Security Notice 1123-1 - A large number of security issues were discovered in the Gecko rendering engine. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.
107e7026a0d71242cee52a86cd3fd92ca9fb2ae7bce238e4916c6c3fc152ee22Mandriva Linux Security Advisory 2010-258 - Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, Thunderbird before 3.0.11 and 3.1.x before 3.1.7, and SeaMonkey before 2.0.11 do not properly validate downloadable fonts before use within an operating system's font implementation, which allows remote attackers to execute arbitrary code via vectors related to @font-face Cascading Style Sheets rules. The line-breaking implementation in Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, Thunderbird before 3.0.11 and 3.1.x before 3.1.7, and SeaMonkey before 2.0.11 on Windows does not properly handle long strings, which allows remote attackers to execute arbitrary code via a crafted document.write call that triggers a buffer over-read. Various other vulnerabilities have been addressed in Mozilla Thunderbird.
8303cb81da50d3bd26721e1af3fad9224a8a40b7e910276b23d32824b24e111dDebian Linux Security Advisory 2132-1 - Several remote vulnerabilities have been discovered in Xulrunner, a runtime environment for XUL applications.
c5d9a55fe018b8f6a0b528859bf11a53d47cceff2f04edf9259e2c76a8e58d39Ubuntu Security Notice 1020-1 - Jesse Ruderman, Andreas Gal, Nils, Brian Hackett, and Igor Bukanov discovered several memory issues in the browser engine. An attacker could exploit these to crash Thunderbird or possibly run arbitrary code as the user invoking the program. Marc Schoenefeld and Christoph Diehl discovered several problems when handling downloadable fonts. The new OTS font sanitizing library was added to mitigate these issues.
58125ecef67a854a08073ba14044044eff383049ce27f28c18c034a16b68f915Ubuntu Security Notice 1019-1 - Security issues have been addressed in firefox. Jesse Ruderman, Andreas Gal, Nils, Brian Hackett, and Igor Bukanov discovered several memory issues in the browser engine. It was discovered that Firefox did not properly verify the about:blank location elements when it was opened via window.open(). It was discovered that Firefox did not properly handle <div> elements when processing a XUL tree. Marc Schoenefeld and Christoph Diehl discovered several problems when handling downloadable fonts. Various other issues have also been addressed.
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