Unspecified vulnerability in the PL/SQL 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 unknown vectors.
http://www.securitytracker.com/id/1031572
http://www.securityfocus.com/bid/72166
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html