CVE-2006-3081
mysqld in MySQL 4.1.x before 4.1.18, 5.0.x before 5.0.19, and 5.1.x before 5.1.6 allows remote authorized users to cause a denial of service (crash) via a NULL second argument to the str_to_date function.
Date published : 2006-06-19
http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html