IBM DB2 9.1 before FP11, 9.5 before FP9, 9.7 before FP5, and 9.8 before FP4 allows remote attackers to cause a denial of service (daemon crash) via a crafted Distributed Relational Database Architecture (DRDA) request.
The XML feature in IBM DB2 9.5 before FP9, 9.7 through FP5, and 9.8 through FP4 allows remote authenticated users to cause a denial of service (infinite loop) by calling the XMLPARSE function with a crafted string expression.