mysqld in MySQL 5.0.x before 5.0.88 and 5.1.x before 5.1.41 does not (1) properly handle errors during execution of certain SELECT statements with subqueries, and does not (2) preserve certain null_value flags during execution of statements that use the GeomFromWKB function, which allows remote authenticated users to cause a denial of service (daemon crash) via a crafted statement.
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00764.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8500
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11349
https://bugzilla.redhat.com/show_bug.cgi?id=540906
http://www.vupen.com/english/advisories/2010/1107
http://www.ubuntu.com/usn/USN-1397-1
http://www.redhat.com/support/errata/RHSA-2010-0109.html
http://www.debian.org/security/2010/dsa-1997
http://ubuntu.com/usn/usn-897-1
http://support.apple.com/kb/HT4077
http://secunia.com/advisories/38573
http://secunia.com/advisories/38517
http://secunia.com/advisories/37717
http://marc.info/?l=oss-security&m=125901161824278&w=2
http://marc.info/?l=oss-security&m=125883754215621&w=2
http://marc.info/?l=oss-security&m=125881733826437&w=2
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
http://dev.mysql.com/doc/refman/5.1/en/news-5-1-41.html