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.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9516
https://exchange.xforce.ibmcloud.com/vulnerabilities/27212
http://www.vupen.com/english/advisories/2007/0930
http://www.us-cert.gov/cas/techalerts/TA07-072A.html
http://www.us-cert.gov/cas/techalerts/TA06-208A.html
http://www.securityfocus.com/archive/1/437571/100/0/threaded
http://www.securityfocus.com/archive/1/437277
http://www.securityfocus.com/archive/1/437145
http://www.redhat.com/support/errata/RHSA-2007-0083.html
http://www.mandriva.com/security/advisories?name=MDKSA-2006:111
http://www.debian.org/security/2006/dsa-1112
http://secunia.com/advisories/24479
http://secunia.com/advisories/20871
http://secunia.com/advisories/20832
http://secunia.com/advisories/19929
http://seclists.org/lists/fulldisclosure/2006/Jun/0434.html
http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html
http://docs.info.apple.com/article.html?artnum=305214