Oracle VM VirtualBox Extensions Local Privilege Escalation Vulnerability (Linux)

Summary
This host is installed with Oracle VirtualBox and is prone to denial of service vulnerability.
Impact
Successful exploitation will let the local users to gain escalated privileges. Impact Level: Application.
Solution
Apply the patch from below link, http://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html ***** NOTE: Ignore this warning, if above mentioned workaround is manually applied. *****
Insight
The flaw is caused by an unspecified error related to various extensions, which could allow local authenticated attackers to gain elevated privileges.
Affected
Oracle VirtualBox version 4.0 on linux.
References