MySQL version 5.0.x suffers from an IF query handling remote denial of service vulnerability.
fbd9482c8025c99f1db3846350ceee2b43d7498a1499d6e009ebd5dfd16c551d
source: http://www.securityfocus.com/bid/23911/info
MySQL is prone to a remote denial-of-service vulnerability because it fails to handle certain specially crafted queries.
An attacker can exploit this issue to crash the application, denying access to legitimate users.
NOTE: An attacker must be able to execute arbitrary SELECT statements against the database to exploit this issue. This may be through legitimate means or by exploiting other latent SQL-injection vulnerabilities.
Versions prior to MySQL 5.0.40 are vulnerable.
SELECT id from example WHERE id IN(1, (SELECT IF(1=0,1,2/0)));