How to install VirtualBox Guest Additions on a GUI-less Ubuntu server host Your email has been sent The VirtualBox Guest Additions gives a performance boost and extra ...
Oracle has released patches for ten vulnerabilities in VirtualBox which allow attackers to break out of guest operating systems and attack the host operating system that VirtualBox runs on. Exploits ...
It is the first thing you need to fix the issue as stated above. For that, you need to run the virtual machine showing the error and go to the Devices > Install Guest ...