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TITLE:
Call of Duty 4: Modern Warfare Vulnerabilities

SECUNIA ADVISORY ID:
SA30815

VERIFY ADVISORY:
http://secunia.com/advisories/30815/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Call of Duty 4: Modern Warfare
http://secunia.com/product/18568/

DESCRIPTION:
Luigi Auriemma has reported some vulnerabilities in Call of Duty 4:
Modern Warfare, which can be exploited by malicious people to cause a
DoS (Denial of Service) or potentially compromise a vulnerable
system.

1) A boundary error within the "callvote map" command can be
exploited to cause a buffer overflow by calling the command with a
long "MAP" parameter (greater than 248 bytes).

Successful exploitation may allow execution of arbitrary code.

2) An error within the "va()" function can be exploited to cause the
server to terminate via an overly long command (greater than 1024
bytes).

The vulnerabilities are reported in version 1.6. Other versions may
also be affected.

SOLUTION:
Restrict access to game servers to trusted people only.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/cod4vamap-adv.txt

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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.

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Please Note:
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Secunia NEVER sends attached files with advisories.
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