A vulnerability classified as problematic has been found in Valve Software Half-Life up to 3.1.3. Affected is an unknown function of the component Player Limit Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

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.

The weakness was published 10/04/2002 by Auriemma Luigi (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is traded as CVE-2002-0964. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (9412), Exploit-DB (21572) and SecurityFocus (BID 5076†).

Productinfo

Vendor

• Valve Software

Name

• Half-Life

Version

• 1.1.0.4
• 1.1.0.8
• 1.1.0.9
• 1.1.1.0
• 3.1
• 3.1.3

License

• commercial

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CPE 2.2info

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