From d600909da9ef0a4b25052c1bf2de83d4e7628b0e Mon Sep 17 00:00:00 2001
From: Ondrej Filip <feela@trubka.network.cz>
Date: Wed, 13 Apr 2011 13:19:37 +0200
Subject: Fixed bug FICORA #503685.

---
 proto/ospf/packet.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/proto/ospf/packet.c b/proto/ospf/packet.c
index 3cda3845..d156474e 100644
--- a/proto/ospf/packet.c
+++ b/proto/ospf/packet.c
@@ -312,6 +312,12 @@ ospf_rx_hook(sock *sk, int size)
   }
 
   int osize = ntohs(ps->length);
+  if ((unsigned) osize < sizeof(struct ospf_packet))
+  {
+    log(L_ERR "%s%I - too low value in size field (%u bytes)", mesg, sk->faddr, osize);
+    return 1;
+  }
+
   if ((osize > size) || ((osize % 4) != 0))
   {
     log(L_ERR "%s%I - size field does not match (%d/%d)", mesg, sk->faddr, osize, size);
-- 
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