The Half-Life engine before July 7 2004 allows remote attackers to cause a denial of service (server or client crash) via an empty fragmented packet.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Half-life | Valve_software | 1.1.0.4 (including) | 1.1.0.4 (including) |
| Half-life | Valve_software | 1.1.0.8 (including) | 1.1.0.8 (including) |
| Half-life | Valve_software | 1.1.0.9 (including) | 1.1.0.9 (including) |
| Half-life | Valve_software | 1.1.1.0 (including) | 1.1.1.0 (including) |
| Half-life_dedicated_server | Valve_software | 3.1 (including) | 3.1 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.0.4 (including) | 3.1.0.4 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.0.5 (including) | 3.1.0.5 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.0.6 (including) | 3.1.0.6 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.0.7 (including) | 3.1.0.7 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.0.8 (including) | 3.1.0.8 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.0.9 (including) | 3.1.0.9 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.1.0 (including) | 3.1.1.0 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.1.1c1 (including) | 3.1.1.1c1 (including) |
| Half-life_dedicated_server | Valve_software | 3.1.1.1d (including) | 3.1.1.1d (including) |
| Half-life_dedicated_server | Valve_software | 3.1.1.1e (including) | 3.1.1.1e (including) |
| Half-life_dedicated_server | Valve_software | 3.1.3 (including) | 3.1.3 (including) |
| Half-life_dedicated_server | Valve_software | 4.1.0.4 (including) | 4.1.0.4 (including) |
| Half-life_dedicated_server | Valve_software | 4.1.0.6 (including) | 4.1.0.6 (including) |
| Half-life_dedicated_server | Valve_software | 4.1.0.7 (including) | 4.1.0.7 (including) |
| Half-life_dedicated_server | Valve_software | 4.1.0.8 (including) | 4.1.0.8 (including) |
| Half-life_dedicated_server | Valve_software | 4.1.0.9 (including) | 4.1.0.9 (including) |
| Half-life_dedicated_server | Valve_software | 4.1.1.0 (including) | 4.1.1.0 (including) |
| Half-life_dedicated_server | Valve_software | 4.1.1.1c1 (including) | 4.1.1.1c1 (including) |
| Half-life_dedicated_server | Valve_software | 4.1.1.1d_beta (including) | 4.1.1.1d_beta (including) |
| Half-life_dedicated_server | Valve_software | 4.1.1.1e (including) | 4.1.1.1e (including) |