| Package | Affected versions | Patched versions |
|---|---|---|
| half-life | = 1.1.0.4= 1.1.0.8= 1.1.0.9= 1.1.1.0 | |
| half-life dedicated server | = 3.1.3≤ 3.1 |
Half-Life Server 1.1.1.0 and earlier allows remote attackers to cause a denial of service (resource exhaustion) via multiple responses to the initial challenge with different cd_key values, which reaches the player limit and prevents other players from connecting until the original responses have timed out.
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