Kubukeka sengathi iCanonical iqale ukukhuthaza I-Lockdown, isici seLinux 5.4 esizokwandisa ukuphepha, phakathi kwezinye izinto, ngokuvimbela ukwenziwa kwekhodi ngokungafanele. Futhi kungukuthi namuhla ishicilele imibiko emibili emisha yezokuphepha lapho ikhuluma khona nge-12 ephelele Ukuba sengozini okulungisiwe ku-Ubuntu 16.04 LTS kernel, ezimbili zazo zithinta Ubuntu 18.04 LTS futhi. Ngokwale mibiko, akuthinteki Ubuntu 19.04 noma Ubuntu 19.10.
Kokukhubazeka okuyishumi nambili, Ezingu-8 zifakwe ilebula njengokubekwa phambili okulingene, kanti ezinye ezine zibhalwe njengeziza kuqala. Kushicilelwe amaphutha ezokuphepha kule mibiko I-USB-4145-1, esisitshela ngama-11 akhona ku-Ubuntu 16.04 kuphela, kanye ne- I-USN-4144-1, esisitshela ngobuthakathaka obubili obengeziwe kuXenial Xerus obuthinta neBionic Beaver. ICanonical ishicilela imibiko lapho isilungise amaphutha ezokuphepha.
I-Ubuntu 16.04 kernel iyona ethole ama-patches amaningi
Phakathi kwezimbungulu "ezikhuthaza" umsebenzi we-Lockdown ozofika ne-Linux 5.4 sinefayela le- I-CVE-2019-15215, the I-CVE-2019-15211, the I-CVE-2019-13631, the I-CVE-2019-11487, the I-CVE-2018-20976, the I-CVE-2017-18509 futhi i I-CVE-2018-20976, okunye okungenhla kubaluleke kakhulu, kepha konke kungavumela umhlaseli ukuthi enze ukwenziwa kwekhodi ngokungenasizathu.
Okunye ukwehluleka okuyisihlanu, i- I-CVE-2019-15926, I-CVE-2019-10207, I-CVE-2019-0136, I-CVE-2018-20961 y I-CVE-2016-10905, ingajwayela yenza ukuhlaselwa kwe-DoS, kwezinye izimo ngisho nokuvumela ukuvimba noma "ukuphahlazeka" uhlelo lokusebenza. Njengoba sishilo, azikho kulezi zinambuzane ezingenhla ezibaluleke kakhulu.
Ukuvuselelwa kwe-Ubuntu 16.04 ne-Ubuntu 18.04 kernel manje sekutholakala kuzinhlelo zokusebenza zeSoftware Update noma ezikhungweni zesoftware ezinambitheka ezahlukahlukene ze-Ubuntu. Ama-patches we-Kernel yilabo ogama labo lephakeji eliqala ngo- "linux-" futhi uma selisetshenzisiwe kufanele siqale kabusha uhlelo lokusebenza ukuze ushintsho luqale ukusebenza. Ngeke kudingeke ukuqala kabusha uma sisebenzisa umsebenzi we-Live Patch otholakala kuzinguqulo ze-LTS ze-Ubuntu, kodwa I-Lockdown, Sizokulinda.