Stack-based buffer overflow in the SATENCRYPT function in IBM DB2 8.1, when Satellite Administration (SATADMIN) is enabled, allows remote attackers to execute arbitrary code via a long parameter.

Shared memory sections and events in IBM DB2 8.1 have default permissions of read and write for the Everyone group, which allows local users to gain unauthorized access, gain sensitive information, such as cleartext passwords, and cause a denial of service.

Buffer overflow in the TCP/IP listener in IBM DB2 Universal Database (UDB) before 8.1 FixPak 12 allows remote attackers to cause a denial of service (application crash) via a long MGRLVLLS message inside of an EXCSAT message when establishing a connection.

Multiple unspecified vulnerabilities in IBM DB2 Universal Database (UDB) before 8.1 FixPak 12 allow remote attackers to cause a denial of service (application crash) via a (1) "long column list" in the (a) REPLACE INTO and (b) INSERT INTO portions of the LOAD command or a (2) large number of values in an IN clause, possibly related to a buffer overflow.

IBM DB2 Universal Database (UDB) before 8.2 FixPak 12 allows remote attackers to cause a denial of service (application crash) by sending "incorrect information ... regarding the package name/creator," which leads to a "memory overwrite."

IBM DB2 Universal Database version 6.1 allows users to cause a denial of service via a malformed query.

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.