Unspecified vulnerability in the Oracle VM VirtualBox component in Oracle Virtualization VirtualBox before 4.1.32, 4.2.24, and 4.3.10 allows local users to affect confidentiality, integrity, and availability via vectors related to Graphics driver (WDDM) for Windows guests.
http://www.oracle.com/technetwork/topics/security/cpuapr2014-1972952.html