The host is installed with Oracle VM VirtualBox before 3.2.18, 4.0.x before 4.0.20, 4.1.x before 4.1.28 or 4.2.x before 4.2.18 and is prone to unspecified vulnerability. A flaw is present in the application, which fails to properly handle unknown vectors related to Core. Successful exploitation allows local users to affect availability.