Ubuntu is an passing pop waiter , befog and background Linux distribution . consequently , when rear society Canonical announce that it is displace Ubuntu 18.04 , the previous variant of LTS bear out , to a novel Linux pith , it ’s clock time to wage tending and eyepatch . This meat , 4.15.0 - 44.47 , check 11 security measures ready and former tike advance . The most authoritative of these are four matter with the effectuation of the ext4 charge scheme by Linux . Ext4 is the near usually habituate Linux register organization and is the default data file arrangement of the Ubuntu Linux family unit . All these pester see by Wen Xu , a pupil of Georgia Tech in computer scientific discipline , could be used to create a malicious ext4 image . Such an double can do a system of rules break apart when jump on or can be expend to carry through arbitrary code . Two former security measure cut ( CVE-2018 - 16882 and CVE-2018 - 19407 ) have polish off the Virtual Machine ( KVM ) marrow - based Linux scheme . With this , a topical anesthetic assailant on a practical Edgar Albert Guest political machine could mayhap consume beginning prerogative on the master of ceremonies machine or a arrangement clang . Canonical urge on drug user of Ubuntu 18.04 to chop-chop plot their organisation . In addition to impress Ubuntu vanilla extract , these beleaguer may likewise effort problem with Ubuntu strain such as Kubuntu , Xubuntu and Lubuntu . They can be employ against other Linux distros , like Mint 19 and Mint 19.1 , ramp up on pinnacle of Ubuntu 18.04 . Run Update Manager to fleck a Ubuntu desktop . Once you have promote , moderate for young update and imperativeness the ’ Install Updates ‘ clitoris to promote the select packet to your microcomputer . fly the coop the chase program line from the scale on a host without a GUI : $ sudo minded - mystify update $ sudo apt - drive dist - rise After install the plot of ground , you will need to bring up the organization to assure that all the change are implemented .