Buffer overflow in req_parsebody method in lua_request.c

Software Versions ------------------- Ubuntu - 18.04 (32-bit) Apache 2.4.51 (32-bit)

  ...
  size_t  vlen = 0;
  ...
  ...
  vlen = end - crlf - 8;
  buffer = (char *) apr_pcalloc(r->pool, vlen+1);
  memcpy(buffer, crlf + 4, vlen);
  ...