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2004: 3,100 advisories published
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TITLE:
AMX Mod X "geoip_code2()" and "geoip_code3()" Off-By-One
Vulnerabilities

SECUNIA ADVISORY ID:
SA27411

VERIFY ADVISORY:
http://secunia.com/advisories/27411/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
AMX Mod X 1.x
http://secunia.com/product/16336/

DESCRIPTION:
Simon Logic has reported some vulnerabilities in AMX Mod X, which can
potentially be exploited by malicious people to cause a DoS (Denial of
Service) or compromise an application using the plugin.

The vulnerabilities are caused due to the "geoip_code2()" and
"geoip_code3()" functions incorrectly handling country lookup errors.
This can be exploited to cause a buffer overflow with a zero byte.

The vulnerabilities are reported in version 1.76d. Other versions may
also be affected.

SOLUTION:
Update to version 1.8.0.

The vendor recommends the usage of the "geoip_code2_ex()" and
"geoip_code3_ex()" functions in order to avoid the buffer overflow.

PROVIDED AND/OR DISCOVERED BY:
Simon Logic

ORIGINAL ADVISORY:
http://bugs.alliedmods.net/index.php?do=details&task_id=519
http://wiki.alliedmods.net/AMX_Mod_X_1.8.0_Changes

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