$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Importing base box 'debian/contrib-stretch64'...
==> default: Matching MAC address for NAT networking...
==> default: Checking if box 'debian/contrib-stretch64' is up to date...
==> default: Setting the name of the VM: vagrant_default_1543515804334_35381
==> default: Vagrant has detected a configuration issue which exposes a
==> default: vulnerability with the installed version of VirtualBox. The
==> default: current guest is configured to use an E1000 NIC type for a
==> default: network adapter which is vulnerable in this version of VirtualBox.
==> default: Ensure the guest is trusted to use this configuration or update
==> default: the NIC type using one of the methods below:
==> default: 
==> default:   https://www.vagrantup.com/docs/virtualbox/configuration.html#default-nic-type
==> default:   https://www.vagrantup.com/docs/virtualbox/networking.html#virtualbox-nic-type
...