Unspecified vulnerability in the Core RDBMS component in Oracle Database Server 11.1.0.7, 11.2.0.3, 11.2.0.4, and 12.1.0.1 allows remote authenticated users to affect confidentiality via vectors related to SYS tables.

Unspecified vulnerability in the Spatial component in Oracle Database Server 11.1.0.7, 11.2.0.3, 11.2.0.4, and 12.1.0.1 allows local users to affect confidentiality, integrity, and availability via unknown vectors.

The TNS Listener, as used in Oracle Database 11g 11.1.0.7, 11.2.0.2, and 11.2.0.3, and 10g 10.2.0.3, 10.2.0.4, and 10.2.0.5, as used in Oracle Fusion Middleware, Enterprise Manager, E-Business Suite, and possibly other products, allows remote attackers to execute arbitrary database commands by performing a remote registration of a database (1) instance or (2) service name that already exists, then conducting a man-in-the-middle (MITM) attack to hijack database connections, aka "TNS Poison."