CVE-2009-3622

Algorithmic complexity vulnerability in wp-trackback.php in WordPress before 2.8.5 allows remote attackers to cause a denial of service (CPU consumption and server hang) via a long title parameter in conjunction with a charset parameter composed of many comma-separated UTF-8 substrings, related to the mb_convert_encoding function in PHP.

Affected Software

References

• http://codes.zerial.org/php/wp-trackbacks_dos.phps
• http://marc.info/?l=oss-security\u0026m=125612393329041\u0026w=2
• http://marc.info/?l=oss-security\u0026m=125614592004825\u0026w=2
• http://rooibo.wordpress.com/2009/10/17/agujero-de-seguridad-en-wordpress/
• http://seclists.org/fulldisclosure/2009/Oct/263
• http://secunia.com/advisories/37088
• http://security-sh3ll.blogspot.com/2009/10/wordpress-resource-exhaustion-denial-of.html
• http://securitytracker.com/id?1023072
• http://wordpress.org/development/2009/10/wordpress-2-8-5-hardening-release/
• http://www.osvdb.org/59077
• http://www.vupen.com/english/advisories/2009/2986
• https://bugzilla.redhat.com/show_bug.cgi?id=530056
• https://exchange.xforce.ibmcloud.com/vulnerabilities/53884