SynopsisThe remote host has a web browser installed that is vulnerable by a user-after-free vulnerability
DescriptionVersions of SeaMonkey 2.16.x earlier than 2.16.1 are potentially affected.
An error exists in the HTML editor (nsHTMLEditor) related to content script and the calling of the function 'document.execCommand' while internal editor operations are running. The previously freed memory can be dereferenced and could lead to arbitrary code execution
SolutionUpgrade to SeaMonkey 2.16.1 or later.