The audit facility in the Security component in IBM DB2 UDB 9.5 before FP6a uses instance-level audit settings to capture connection (aka CONNECT and AUTHENTICATION) events in certain circumstances in which database-level audit settings were intended, which might make it easier for remote attackers to connect without discovery.
Unspecified vulnerability in IBM DB2 8 before FP17a, 9.1 before FP6a, and 9.5 before FP3a allows remote attackers to cause a denial of service (infinite loop) via a crafted CONNECT data stream.
Unspecified vulnerability in the server in IBM DB2 8 before FP17a, 9.1 before FP6a, and 9.5 before FP3a allows remote authenticated users to cause a denial of service (trap) via a crafted data stream.
Unspecified vulnerability in the CLR stored procedure deployment from IBM Database Add-Ins for Visual Studio in the Visual Studio Net component in IBM DB2 9.1 before Fixpak 5 and 9.5 before Fixpak 2 allows remote authenticated users to execute arbitrary code via unknown vectors.
Multiple stack-based buffer overflows in IBM DB2 9.1 before Fixpak 5 and 9.5 before Fixpak 1 allow remote attackers to cause a denial of service (system outage) via vectors related to (1) use of XQuery to issue statements; the (2) XMLQUERY, (3) XMLEXISTS, and (4) XMLTABLE statements; and the (5) sqlrlaka function.
db2dasrrm in the DB2 Administration Server (DAS) in IBM DB2 Universal Database 9.5 before Fix Pack 1, 9.1 before Fix Pack 4a, and 8 before FixPak 16 allows local users to overwrite arbitrary files via a symlink attack on files used for initialization.
Stack-based buffer overflow in db2dasrrm in the DB2 Administration Server (DAS) in IBM DB2 Universal Database 9.5 before Fix Pack 1, 9.1 before Fix Pack 4a, and 8 before FixPak 16 allows local users to execute arbitrary code via a long DASPROF environment variable.