Checkpoint Firewall-1 UDP denial of service

The machine (or a router on the way) crashed when it was flooded by incorrect UDP packets. This attack was known to work against Firewall-1 3.0, 4.0 or 4.1 An attacker may use this flaw to shut down this server, thus preventing you from working properly.
if this is a FW-1, enable the antispoofing rule otherwise, contact your software vendor for a patch.