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TITLE:
WordPress Trackback Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA37088

VERIFY ADVISORY:
http://secunia.com/advisories/37088/

DESCRIPTION:
A vulnerability has been reported in WordPress, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to the wp-trackback.php script
letting users pass multiple source character encodings to the
"mb_convert_encoding()" function, which can be used to cause a high
CPU load, potentially resulting in a DoS.

The vulnerability is reported in versions prior to 2.8.5.

SOLUTION:
Update to version 2.8.5.
http://wordpress.org/download/

Note: This version contains further security enhancement.

PROVIDED AND/OR DISCOVERED BY:
Jose Carlos Norte

ORIGINAL ADVISORY:
WordPress:
http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/

Jose Carlos Norte:
http://rooibo.wordpress.com/2009/10/17/agujero-de-seguridad-en-wordpress/

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