Unspecified vulnerability in the Database Vault component in Oracle Database Server 10.2.0.3, 10.2.0.4, 10.2.0.5, 11.1.0.7, and 11.2.0.1 allows remote authenticated users to affect integrity and availability, related to SYSDBA.
http://www.oracle.com/technetwork/topics/security/cpuapr2011-301950.html