IBM DB2 9.7 before FP10 and 9.8 through FP5 on Linux, UNIX, and Windows allows remote authenticated users to cause a denial of service (daemon crash) via a crafted ALTER TABLE statement.
https://exchange.xforce.ibmcloud.com/vulnerabilities/95945
http://www-01.ibm.com/support/docview.wss?uid=swg21684812