Use-after-free vulnerability in Mozilla Firefox 3.5.x before 3.5.4 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code by creating JavaScript web-workers recursively.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6464
https://bugzilla.mozilla.org/show_bug.cgi?id=514554
http://www.vupen.com/english/advisories/2009/3334
http://www.mandriva.com/security/advisories?name=MDVSA-2009:294
http://sunsolve.sun.com/search/document.do?assetkey=1-26-272909-1