Unspecified vulnerability in the Oracle VM VirtualBox component before 5.0.28 and 5.1.x before 5.1.8 in Oracle Virtualization allows local users to affect confidentiality via vectors related to Core.
https://security.gentoo.org/glsa/201612-27
http://www.securitytracker.com/id/1037053
http://www.securityfocus.com/bid/93744
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html