Hello Linux Geeksters. As you may know, VirtualBox 4.3.8 has been released a while ago. For more information, see the official changelog.

In this article I will show you how to install VirtualBox 4.3.8 on Ubuntu 13.10 Saucy Salamander, Ubuntu 12.10 Quantal Quetzal, Ubuntu 12.04 Precise Pangolin, Linux Mint 16 Petra, Linux Mint 14 Nada, Linux Mint 13 Maya, Elementary OS 0.2 Luna, Debian Wheezy and Kwheezy.
Because it is available via the Oracle repository, installing Virtualbox on Debian and Ubuntu based systems is easy. All you have to do is add the ppa to your system, download and import the repo’s key, update the local repository index and install the virtualbox-4.3 package.
Follow the instructions for your system exactly, in order to get a successful installation.
How to install Virtualbox 4.3.8 on Ubuntu 13.10 and Linux Mint 16:
$ sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian saucy contrib" >> /etc/apt/sources.list'
$ wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install virtualbox-4.3
How to install Virtualbox 4.3.8 on Ubuntu 12.10 and Linux Mint 14:
$ sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian quantal contrib" >> /etc/apt/sources.list'
$ wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install virtualbox-4.3
How to install Virtualbox 4.3.8 on Ubuntu 12.04, Linux Mint 13 and Elementary OS 0.2:
$ sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian precise contrib" >> /etc/apt/sources.list'
$ wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install virtualbox-4.3
How to install Virtualbox 4.3.8 on Debian Wheezy and Kwheezy:
$ sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian wheezy contrib" >> /etc/apt/sources.list'
$ wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install virtualbox-4.3