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Insecure Library Loading
Moderately critical

Unreal Engine "UGameEngine::UpdateConnectingMessage()" Buffer Overflow

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Release Date:  2010-07-07    Last Update:  2010-07-14    Views:  3,261

Secunia Advisory SA40466

Where:

From remote

Impact:

DoS, System access

Solution Status:

Unpatched

CVE Reference(s):

Description


Luigi Auriemma has reported a vulnerability in the Unreal Engine, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the "UGameEngine::UpdateConnectingMessage()" function, which can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into connecting to a malicious server.

Successful exploitation requires that downloads are enabled (default).

The vulnerability is reported in the following games:
* Unreal Tournament 2003
* Unreal Tournament 2004
* Postal 2
* Rainbow Six: Raven Shield
* SWAT4


Solution:
Do not connect to untrusted servers.

Provided and/or discovered by:
Luigi Auriemma

Original Advisory:
http://aluigi.altervista.org/adv/unrealcbof-adv.txt

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: Unreal Engine "UGameEngine::UpdateConnectingMessage()" Buffer Overflow

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