MySQL 6.0.9 - XPath Expression Remote Denial of Service
source: https://www.securityfocus.com/bid/33972/info
MySQL is prone to a remote denial-of-service vulnerability because it fails to handle certain XPath expressions.
An attacker can exploit this issue to crash the application, denying access to legitimate users.
This issue affects:
MySQL 5.1.31 and earlier
MySQL 6.0.9 and earlier
select updatexml('','0/a','');
select extractvalue('','0/a');