diff options
| -rw-r--r-- | proto/ospf/packet.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/proto/ospf/packet.c b/proto/ospf/packet.c index 3cda384..d156474 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); |