Flaw bug created to hold information about an old flaw we knew something about. For more details see the MITRE CVE description.
MITRE description: Mozilla Firefox 1.5.0.9 and 2.0.0.1, and SeaMonkey before 1.0.8 allow remote attackers to execute arbitrary code via JavaScript onUnload handlers that modify the structure of a document, wich triggers memory corruption due to the lack of a finalize hook on DOM window objects.