Oracle MySQL 5.1 < 5.1.49 and 5.5 < 5.5.5 - Authenticated Denial of Service via HANDLER Interface
Oracle MySQL 5.1 before 5.1.49 and 5.5 before 5.5.5 allows remote authenticated users to cause a denial of service (mysqld daemon crash) by using the HANDLER interface and performing "alternate reads from two indexes on a table," which triggers an assertion failure.