package/openssl/patches/900-CVE-2009-1378.patch

   1 http://rt.openssl.org/Ticket/Display.html?id=1931&user=guest&pass=guest
   2
   3 Index: openssl/ssl/d1_both.c
   4 ===================================================================
   5 --- d1_both.c.orig
   6 +++ d1_both.c
   7 @@ -561,7 +561,16 @@ dtls1_process_out_of_seq_message(SSL *s,
   8         if ((msg_hdr->frag_off+frag_len) > msg_hdr->msg_len)
   9                 goto err;
  10
  11 -       if (msg_hdr->seq <= s->d1->handshake_read_seq)
  12 +       /* Try to find item in queue, to prevent duplicate entries */
  13 +       pq_64bit_init(&seq64);
  14 +       pq_64bit_assign_word(&seq64, msg_hdr->seq);
  15 +       item = pqueue_find(s->d1->buffered_messages, seq64);
  16 +       pq_64bit_free(&seq64);
  17 +
  18 +       /* Discard the message if sequence number was already there, is
  19 +        * too far in the future or the fragment is already in the queue */
  20 +       if (msg_hdr->seq <= s->d1->handshake_read_seq ||
  21 +               msg_hdr->seq > s->d1->handshake_read_seq + 10 || item != NULL)
  22                 {
  23                 unsigned char devnull [256];
  24