MySQL before 5.0.25 and 5.1 before 5.1.12 evaluates arguments of suid routines in the security context of the routine's definer instead of the routine's caller, which allows remote authenticated users to gain privileges through a routine that has been made available using GRANT EXECUTE.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10105
https://exchange.xforce.ibmcloud.com/vulnerabilities/28442
http://www.vupen.com/english/advisories/2006/3306
http://www.ubuntu.com/usn/usn-338-1
http://www.redhat.com/support/errata/RHSA-2008-0364.html
http://www.redhat.com/support/errata/RHSA-2007-0083.html
http://www.novell.com/linux/security/advisories/2006_23_sr.html
http://securitytracker.com/id?1016709
http://secunia.com/advisories/30351
http://secunia.com/advisories/22080
http://secunia.com/advisories/21770
http://secunia.com/advisories/21506