Unspecified vulnerability in Guest Additions in Sun xVM VirtualBox 1.6.x and 2.0.x before 2.0.12, 2.1.x, and 2.2.x, and Sun VirtualBox before 3.0.10, allows guest OS users to cause a denial of service (memory consumption) on the guest OS via unknown vectors.

The VirtualBox 2.0.8 and 2.0.10 web service in Sun Virtual Desktop Infrastructure (VDI) 3.0 does not require authentication, which allows remote attackers to obtain unspecified access via vectors involving requests to an Apache HTTP Server.