IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 10.1, 10.5, and 11.1 is vulnerable to a denial of service. Users that have both EXECUTE on PDGETDIAGHIST and access to the diagnostic directory on the DB2 server can cause the instance to crash. IBM X-Force ID: 158091.

The OLAP query engine in IBM DB2 and DB2 Connect 9.7 through FP9, 9.8 through FP5, 10.1 through FP3, and 10.5 through FP2, and the DB2 pureScale Feature 9.8 for Enterprise Server Edition, allows remote authenticated users to cause a denial of service (database outage and deactivation) via unspecified vectors.

IBM DB2 9.7 before FP3 does not perform the expected drops or invalidations of dependent functions upon a loss of privileges by the functions' owners, which allows remote authenticated users to bypass intended access restrictions via calls to these functions, a different vulnerability than CVE-2009-3471.

IBM DB2 9.7 before FP3 does not properly enforce privilege requirements for execution of entries in the dynamic SQL cache, which allows remote authenticated users to bypass intended access restrictions by leveraging the cache to execute an UPDATE statement contained in a compiled compound SQL statement.