libxml2 xmlBufAdd Heap Buffer Overflow Exploit

libxml2: heap-buffer-overflow in xmlBufAdd libxml2 is vulnerable to a heap-buffer-overflow when xmlBufAdd is called on a very large buffer: int xmlBufAddxmlBufPtr buf, const xmlChar str, int len unsigned int needSize; .. needSize = buf-use + len + 2; A if needSize buf-size .. if !xmlBufResizebuf,...