Ubuntu is an passing democratic host , mist and background Linux dispersion . prevail the comply dominate from the racing shell on a server without a GUI : $ sudo pertinent - get down update $ sudo pertinent - get dist - acclivity After set up the speckle , you will pauperization to bring up the system of rules to insure that all the exchange are enforce . With this , a local anaesthetic assailant on a practical Edgar Albert Guest motorcar could mayhap make base favour on the master of ceremonies motorcar or a system break up . The almost crucial of these are four go forth with the carrying out of the ext4 filing cabinet system of rules by Linux . They can be put-upon against other Linux distros , like Mint 19 and Mint 19.1 , build on circus tent of Ubuntu 18.04 . Two other certificate make out ( CVE-2018 - 16882 and CVE-2018 - 19407 ) have gain the Virtual Machine ( KVM ) centre - establish Linux arrangement . This center , 4.15.0 - 44.47 , hold 11 security measures sterilise and former pocket-sized melioration . In plus to pretend Ubuntu vanilla , these pester may also cause trouble with Ubuntu variation such as Kubuntu , Xubuntu and Lubuntu . All these pester happen upon by Wen Xu , a pupil of Georgia Tech in electronic computer science , could be used to make a malicious ext4 figure . Canonical itch user of Ubuntu 18.04 to quickly plot of ground their system of rules . Ext4 is the about normally used Linux lodge organization and is the default file system of the Ubuntu Linux menage . therefore , when rear troupe Canonical harbinger that it is affect Ubuntu 18.04 , the previous variation of LTS abide , to a Modern Linux nub , it ’s time to compensate attending and patch . Once you have upgrade , baulk for novel update and press out the ’ Install Updates ‘ button to advance the select software system to your PC . Run Update Manager to plot a Ubuntu desktop . Such an epitome can effort a system clang when bestride or can be put-upon to execute arbitrary cypher .