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Insecure Library Loading
Moderately critical

Quake 3 Buffer Overflow Vulnerabilities

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Release Date:  2006-07-04    Last Update:  2006-07-11    Views:  14,994

Secunia Advisory SA20946

Where:

From remote

Impact:

DoS, System access

Solution Status:

Partial Fix

CVE Reference(s):

Description


RunningBon has reported two vulnerabilities in the Quake 3 Engine, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a user's system.

1) A boundary error exist in the "CG_ServerCommand()" function when receiving long server commands. This can be exploited to cause a stack-based buffer overflow via overly long server commands sent from the server.

Successful exploitation may allow arbitrary code execution, but requires that the user is e.g. tricked into connecting to a malicious server.

Reportedly, this vulnerability only affects Soldier of Fortune II and older versions of the Quake3 engine.

2) A boundary error exists in the handling of CS_ITEMS sent from a server. This can be exploited to cause a stack-based buffer overflow by sending overly long values to the client.

Successful exploitation may allow arbitrary code execution, but requires that the user is e.g. tricked into connecting to a malicious server.


Solution:
Only connect to trusted servers.

Provided and/or discovered by:
RunningBon

Additional information by Luigi Auriemma.

Original Advisory:
http://milw0rm.com/exploits/1976
http://milw0rm.com/exploits/1977

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Quake 3 Buffer Overflow Vulnerabilities

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