JScript 5.7 RegExpBase::FBadHeader Use-After-Free

Recompiling the regular expression pattern during a replace can cause the code to reuse a freed string, but only if the string is freed from the cache by allocating and freeing a number of strings of certain size. CVE-2015-2482: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2482...