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TITLE:
Quake 3 Engine "remapShader" Command Buffer Overflow

SECUNIA ADVISORY ID:
SA19984

VERIFY ADVISORY:
http://secunia.com/advisories/19984/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Quake3 Engine 3.x
http://secunia.com/product/4653/

DESCRIPTION:
landser has reported a vulnerability in Quake 3 Engine, which
potentially can be exploited by malicious people to compromise a
user's system.

The vulnerability is caused due to a boundary error within the
handling of the "remapShader" command. This can be exploited to cause
a buffer overflow via specially crafted "remapShader" commands sent to
a client.

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

The vulnerability has been reported in the following software:
* ET 2.60.
* Return to Castle Wolfenstein 1.41.
* Quake III Arena 1.32b.

Other versions may also be affected.

SOLUTION:
Do not connect to non-trusted game servers.

PROVIDED AND/OR DISCOVERED BY:
landser

ORIGINAL ADVISORY:
http://www.milw0rm.com/exploits/1750

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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