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reverse engineering of software and exploit code, auditing of
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TITLE:
Icculus.org Quake 3 Engine CS_ITEMS Buffer Overflow

SECUNIA ADVISORY ID:
SA20961

VERIFY ADVISORY:
http://secunia.com/advisories/20961/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Icculus.org Quake3 Engine (ioquake3)
http://secunia.com/product/10665/

DESCRIPTION:
A vulnerability has been reported in the Icculus.org Quake 3 Engine,
which can be exploited by malicious people to cause a DoS (Denial of
Service) and potentially compromise a user's system.

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.

The vulnerability has been reported in revision 812. Prior versions
may be also affected.

SOLUTION:
The vulnerability has been fixed in revision 813 in the SVN
repository.

PROVIDED AND/OR DISCOVERED BY:
Originally discovered in Quake engine by:
RunningBon

Reported in Icculus.org Quake 3 Engine by:
Luigi Auriemma

OTHER REFERENCES:
SA20946:
http://secunia.com/advisories/20946/

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