Mandriva Linux Security Advisory MDKSA-2006-111 – 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. MySQL 4.0.18 in Corporate 3.0 and MNF 2.0 is not affected by this issue.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/47778/MDKSA-2006-111.txt
Source: https://packetstormsecurity.com/files/47778/Mandriva-Linux-Security-Advisory-2006.111.html