IE11: Use-after-free in Js::RegexHelper::RegexReplace(CVE-2018-0866)

There is a Use-after-free vulnerability in Internet Explorer that could potentially be used for memory disclosure. This was tested on IE11 running on Window 7 64-bit with the latest patches applied. Note that the PoC was tested in a 64-bit tab process via TabProcGrowth=0 registry flag and the pag...