Oracle MySQL 5.1 before 5.1.49 and 5.0 before 5.0.92 allows remote authenticated users to cause a denial of service (mysqld daemon crash) by using EXPLAIN with crafted “SELECT … UNION … ORDER BY (SELECT … WHERE …)” statements, which triggers a NULL pointer dereference in the Item_singlerow_subselect::store function.
bugs.mysql.com/bug.php?id=52711
dev.mysql.com/doc/refman/5.0/en/news-5-0-92.html
dev.mysql.com/doc/refman/5.1/en/news-5-1-49.html
lists.apple.com/archives/security-announce/2011//Jun/msg00000.html
lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.html
secunia.com/advisories/42875
secunia.com/advisories/42936
support.apple.com/kb/HT4723
www.debian.org/security/2011/dsa-2143
www.mandriva.com/security/advisories?name=MDVSA-2010:155
www.mandriva.com/security/advisories?name=MDVSA-2010:222
www.mandriva.com/security/advisories?name=MDVSA-2011:012
www.openwall.com/lists/oss-security/2010/09/28/10
www.redhat.com/support/errata/RHSA-2010-0825.html
www.redhat.com/support/errata/RHSA-2011-0164.html
www.securityfocus.com/bid/42599
www.turbolinux.co.jp/security/2011/TLSA-2011-3j.txt
www.ubuntu.com/usn/USN-1017-1
www.ubuntu.com/usn/USN-1397-1
www.vupen.com/english/advisories/2011/0105
www.vupen.com/english/advisories/2011/0133
www.vupen.com/english/advisories/2011/0170
www.vupen.com/english/advisories/2011/0345
bugzilla.redhat.com/show_bug.cgi?id=628328
exchange.xforce.ibmcloud.com/vulnerabilities/64684