Given the following code containing errors, provide Common Weakness Enumeration (CWE) identifiers and corresponding messages in JSON format. Each identified weakness should have a unique entry in the JSON array.
    Code: peek_for_as4_capability (struct peer *peer, u_char length)
{
  struct stream *s = BGP_INPUT (peer);
  size_t orig_getp = stream_get_getp (s);
  size_t end = orig_getp + length;
  as_t as4 = 0;
  
  /* The full capability parser will better flag the error.. */
  if (STREAM_READABLE(s) < length)
    return 0;

  if (BGP_DEBUG (as4, AS4))
    zlog_info ("%s [AS4] rcv OPEN w/ OPTION parameter len: %u,"
                " peeking for as4",
	        peer->host, length);
  /* the error cases we DONT handle, we ONLY try to read as4 out of
   * correctly formatted options.
   */
  while (stream_get_getp(s) < end) 
    {
      u_char opt_type;
      u_char opt_length;
      
      /* Check the length. */
      if (stream_get_getp (s) + 2 > end)
        goto end;
      
      /* Fetch option type and length. */
      opt_type = stream_getc (s);
      opt_length = stream_getc (s);
      
      /* Option length check. */
      if (stream_get_getp (s) + opt_length > end)
        goto end;
      
      if (opt_type == BGP_OPEN_OPT_CAP)
        {
          unsigned long capd_start = stream_get_getp (s);
          unsigned long capd_end = capd_start + opt_length;
          
          assert (capd_end <= end);
          
	  while (stream_get_getp (s) < capd_end)
	    {
	      struct capability_header hdr;
	      
	      if (stream_get_getp (s) + 2 > capd_end)
                goto end;
              
              hdr.code = stream_getc (s);
              hdr.length = stream_getc (s);
              
	      if ((stream_get_getp(s) +  hdr.length) > capd_end)
		goto end;

	      if (hdr.code == CAPABILITY_CODE_AS4)
	        {
	          if (hdr.length != CAPABILITY_CODE_AS4_LEN)
	            goto end;
                  
	          if (BGP_DEBUG (as4, AS4))
	            zlog_info ("[AS4] found AS4 capability, about to parse");
	          as4 = bgp_capability_as4 (peer, &hdr);
	          
	          goto end;
                }
              stream_forward_getp (s, hdr.length);
	    }
	}
    }

end:
  stream_set_getp (s, orig_getp);
  return as4;
} ; Sample JSON Format Confermily Expected output: "examples" => "cwe": "xxx"; "message": "xxx"
    
 'cwe': ['CWE-119'], 'message': 'bgpd: Open option parse errors don't NOTIFY, resulting in abort & DoS

* bgp_packet.c: (bgp_open_receive) Errors from bgp_open_option_parse are
  detected, and the code will stop processing the OPEN and return.  However
  it does so without calling bgp_notify_send to send a NOTIFY - which means
  the peer FSM doesn't get stopped, and bgp_read will be called again later.
  Because it returns, it doesn't go through the code near the end of the
  function that removes the current message from the peer input streaam.
  Thus the next call to bgp_read will try to parse a half-parsed stream as
  if it were a new BGP message, leading to an assert later in the code when
  it tries to read stuff that isn't there. Add the required call to
  bgp_notify_send before returning.
* bgp_open.c: (bgp_capability_as4) Be a bit stricter, check the length field
  corresponds to the only value it can be, which is the amount we're going to
  read off the stream. And make sure the capability flag gets set, so
  callers can know this capability was read, regardless.
  (peek_for_as4_capability) Let bgp_capability_as4 do the length check.'