Pakati pa dzulo ndi lero, kugwira ntchito ndi Ubuntu ndikotetezeka pang'ono. Lero tayankhula nanu za Kuyambitsa kwa Firefox 67.0.3, mtundu watsopano womwe wafika kuti uthetse vuto lalikulu lazachitetezo lomwe, malinga ndi Mozilla yomwe, anali kugwiritsa ntchito. Maola kale, Canonical idatulutsa zosintha za Ubuntu kernel, koma sizinachitike mpaka pano pomwe tadziwa chifukwa chokhazikitsira ntchitoyi. Monga momwe mungaganizire momwe tidayambitsira nkhaniyi, zimakhudzana ndi chitetezo.
Makamaka, zomwe adakonza ndizowopsa CVE-2019-11477 y CVE-2019-11478, zomwe zimakhudza iKukhazikitsa mzere wobwezeretsanso wa TCP potenga ma SACK ena. Zolakwitsa ziwirizi zidapezeka ndi Jonathan Looney ndipo amatha lolani wogwiritsa ntchito njiru wakutali kuti atseke mawonekedwe omwe akukhudzidwa ndikupangitsa kuti anthu asalandire ntchito. Izi zimadziwika kuti SACK Panic ndipo zimakhudza mitundu yonse yothandizidwa ndi mabanja a Ubuntu.
Kusintha kernel dzulo kudafika kudzakonza zolakwika zachitetezo
Nthawi iliyonse akamamasula zigamba zachitetezo, Canonical, monga kampani ina iliyonse, imalimbikitsa kusinthidwa posachedwa. Nthawi zina ndimati inde, muyenera kusintha, koma simuyenera kuchita misala chifukwa mumafunikira kugwiritsa ntchito kompyuta kuti mugwiritse ntchito nsikidzi. Potere sindingatsegule ma alamu onse, koma poganizira kuti kulephera kungagwiritsidwe ntchito patali komanso kuti ndizochepa motani kutsegula pulogalamuyo mu X-buntu iliyonse, ndikuti, kuti tidzatetezedwa mu mphindi zochepa (pambuyo poyambiranso).
Mabuku ovomerezeka amati Machitidwe okhudzidwa ndi Ubuntu 19.04, Ubuntu 18.10, Ubuntu 18.04 ndi Ubuntu 16.04, koma machitidwe onse osathandizidwa amakhudzidwanso. Ndikuyankhapo izi chifukwa, mwachitsanzo mu Kutha.ioMutha kuwona kuti padakali ogwiritsa ntchito ambiri, mwachitsanzo Ubuntu 17.10. Ndingakulimbikitseni kusinthira mtundu waposachedwa wa LTS kapena Disco Dingo kwa ogwiritsa ntchito. Sanenapo chilichonse chokhudza ayi ermine, koma zimakhudzidwanso. Zomwe X-buntu mumagwiritsa ntchito, sinthani tsopano.
Khalani oyamba kuyankha