diff -Nura openssl-0.9.8l/crypto/pqueue/pqueue.c openssl-0.9.8l-CVE-2009-1377/crypto/pqueue/pqueue.c --- openssl-0.9.8l/crypto/pqueue/pqueue.c 2005-06-28 09:53:33.000000000 -0300 +++ openssl-0.9.8l-CVE-2009-1377/crypto/pqueue/pqueue.c 2009-11-10 13:19:42.000000000 -0300 @@ -234,3 +234,17 @@ return ret; } + +int +pqueue_size(pqueue_s *pq) +{ + pitem *item = pq->items; + int count = 0; + + while(item != NULL) + { + count++; + item = item->next; + } + return count; +} diff -Nura openssl-0.9.8l/crypto/pqueue/pqueue.h openssl-0.9.8l-CVE-2009-1377/crypto/pqueue/pqueue.h --- openssl-0.9.8l/crypto/pqueue/pqueue.h 2005-05-30 19:34:27.000000000 -0300 +++ openssl-0.9.8l-CVE-2009-1377/crypto/pqueue/pqueue.h 2009-11-10 13:19:42.000000000 -0300 @@ -91,5 +91,6 @@ pitem *pqueue_next(piterator *iter); void pqueue_print(pqueue pq); +int pqueue_size(pqueue pq); #endif /* ! HEADER_PQUEUE_H */ diff -Nura openssl-0.9.8l/ssl/d1_pkt.c openssl-0.9.8l-CVE-2009-1377/ssl/d1_pkt.c --- openssl-0.9.8l/ssl/d1_pkt.c 2009-11-05 12:21:28.000000000 -0300 +++ openssl-0.9.8l-CVE-2009-1377/ssl/d1_pkt.c 2009-11-10 13:19:42.000000000 -0300 @@ -167,6 +167,10 @@ DTLS1_RECORD_DATA *rdata; pitem *item; + /* Limit the size of the queue to prevent DOS attacks */ + if (pqueue_size(queue->q) >= 100) + return 0; + rdata = OPENSSL_malloc(sizeof(DTLS1_RECORD_DATA)); item = pitem_new(priority, rdata); if (rdata == NULL || item == NULL)