Flaw bug created to hold information about an old flaw we knew something about. For more details see the MITRE CVE description.
MITRE description: 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.