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http://rt.openssl.org/Ticket/Display.html?id=1931&user=guest&pass=guest
Index: openssl/crypto/pqueue/pqueue.c
RCS File: /v/openssl/cvs/openssl/crypto/pqueue/pqueue.c,v
rcsdiff -q -kk '-r1.2.2.4' '-r1.2.2.5' -u '/v/openssl/cvs/openssl/crypto/pqueue/pqueue.c,v' 2>/dev/null
--- pqueue.c 2005/06/28 12:53:33 1.2.2.4
+++ pqueue.c 2009/05/16 16:18:44 1.2.2.5
@@ -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;
+}
Index: openssl/crypto/pqueue/pqueue.h
RCS File: /v/openssl/cvs/openssl/crypto/pqueue/pqueue.h,v
rcsdiff -q -kk '-r1.2.2.1' '-r1.2.2.2' -u '/v/openssl/cvs/openssl/crypto/pqueue/pqueue.h,v' 2>/dev/null
--- pqueue.h 2005/05/30 22:34:27 1.2.2.1
+++ pqueue.h 2009/05/16 16:18:44 1.2.2.2
@@ -91,5 +91,6 @@
pitem *pqueue_next(piterator *iter);
void pqueue_print(pqueue pq);
+int pqueue_size(pqueue pq);
#endif /* ! HEADER_PQUEUE_H */
Index: openssl/ssl/d1_pkt.c
RCS File: /v/openssl/cvs/openssl/ssl/d1_pkt.c,v
rcsdiff -q -kk '-r1.4.2.17' '-r1.4.2.18' -u '/v/openssl/cvs/openssl/ssl/d1_pkt.c,v' 2>/dev/null
--- d1_pkt.c 2009/05/16 15:51:59 1.4.2.17
+++ d1_pkt.c 2009/05/16 16:18:45 1.4.2.18
@@ -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)
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