Firewall-1 sets a long timeout for connections that begin with ACK or other packets except SYN, allowing an attacker to conduct a denial of service via a large number of connection attempts to unresponsive systems.
| Software | From | Fixed in |
|---|---|---|
| checkpoint / firewall-1 | 3.0 | 3.0.x |
| checkpoint / firewall-1 | 4.0 | 4.0.x |