Kule nyanga, iCanonical ibisanda kuvuselela ifayili le- Ubuntu kernel isikhathi esisodwa, Ephreli 7. Lokhu kungenzeka ukuthi kwenzeka ngesizathu esisodwa kwezimbili: abakatholanga amaphutha amakhulu ezokuphepha okumele balungise phakathi naso sonke lesi sikhathi noma bebelinde ukwethulwa kweFocal Fossa ngo-Ephreli 23, esivele yenzekile futhi bangabuyela kokujwayelekile. . Kunoma ikuphi, sekuvele kunezinguqulo ezintsha ze-Ubuntu kernel yazo zonke izinhlelo ezisekelwayo.
Njengamanje, labo izinhlelo ezisekelwayo Ziyi-Ubuntu 19.10, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS, ne-Ubuntu 14.04 ESM. Ngokusobala, Ubuntu 20.04 nayo iyakujabulela ukwesekwa, inguqulo entsha yohlelo lokusebenza lweCanonical ebingakabi khona isonto lonke okwamanje, kepha inkampani ephethe uMark Shuttleworth ikhohliwe ukwaba umbiko ohambisanayo wezokuphepha osesikhundleni sewebhusayithi yayo.
Lokhu kubuyekezwa kwe-kernel kulungisa isiphazamiso esiphakeme kakhulu
Imibiko yezokuphepha abayishicilele yilezi I-USN-4342-1, yini ekhuluma nathi 7 izimbungulu ezithinta Ubuntu 19.10 ne-Ubuntu 18.04 LTS, ne-USN-4346-1, ekhuluma ngezimbungulu ezi-5 ezithinta Ubuntu 16.04 LTS kanye no-Ubuntu 14.04 ESM. Ezinye izimbungulu zikhona kuzo zonke izinhlobo ze-Ubuntu. Lokho esingenalo ulwazi mayelana nalokho abakulungisile ku-Ubuntu 20.04 kernel Umbiko weFocal Fossa nawo usushicilelwe. Imayelana ne- I-USN-4343-1 futhi imininingwane isiphazamisi esilungiswe ku-Ubuntu 20.04, okuwukuphela kwaso esibhalwe njengokuphambili, I-CVE-2020-11884 ngale ncazelo elandelayo:
I-Al Viro ithole ukuthi i-Linux kernel yezinhlelo ze-s390x ibingasebenzi kahle al yenza izibuyekezo zethebula lamakhasi ezingxenyeni ze-kernel ezisebenzisa imodi yekheli lesibili. Umhlaseli wendawo angasebenzisa lokhu ukudala ukwenqatshwa kwensiza (system hang) noma wenze ikhodi engenacala.
Ukufaka lezi zingcwecwe futhi sizivikele kukho konke lokhu kwehluleka, vele uvule isikhungo sesoftware se-flavour yethu esemthethweni (noma uhlelo lokusebenza lweSoftware Update) bese ufaka amaphakheji amasha azobe eselinde thina. Ukuze ushintsho lusebenze, kuzodingeka ukuqala kabusha isistimu yokusebenza, ngaphandle kokuthi senze kusebenze i- I-LivePatch etholakala ku-Ubuntu 20.04.