ICanonical ivuselela i-Ubuntu kernel futhi, futhi ngenxa yamaphutha okuphepha

ICanonical yethule i- isibuyekezo esisha se-Ubuntu kernel. Lesi isibuyekezo sesithathu (unayo enye i- lapha y lapha) ezinsukwini ezingaphansi kwezingu-10 futhi bonke sebekhululiwe ukulungisa amaphutha ahlukahlukene ezokuphepha. Inguqulo entsha ilungisa ize ifike kwabathathu, ibathinta bonke Ubuntu 19.04 Disco Dingo, inguqulo yakamuva ezinzile yohlelo lokusebenza olwenziwe yiCanonical. Ngubani othole ababili babo uphinde waba nguJonathan Looney.

Inguqulo entsha, esivele itholakala kumakhosombe asemthethweni e-Ubuntu, yi I-Linux 5.0.0-20.21 futhi ukuvuselelwa kubhalwe ukuphuthuma okuphakathi. Okutholakalayo manje ukuvuselelwa okujwayelekile, okunye kokuphila konke, okungukuthi, okudinga ukuqala kabusha ukuze ukuvikelwa kusebenze. Iziphazamisi ezilungiswe yi-Linux 5.0.0-20.21 yiyona 1831638, I-CVE-2019-11479 y I-CVE-2019-11478.

Nakhu okulungiswa okusha kwe-Ubuntu kernel

• Isiphazamisi 1831638: Ukwenqatshelwa kwensizakalo kude (ukukhathala kwezinsizakusebenza) kubangelwe ukuphazamisa ibhodi lamaphuzu le-TCP SACK.
• I-CVE-2019-11479: kutholwe nguJonathan Looney, ivumela untanga ekude ukuthi ahlukanise ulayini wokudlulisela phambili we-TCP kakhulu ngaphezu kokuthi kusetshenziswe i-MSS enkulu.
• I-CVE-2019-11478: kutholwe futhi nguLooney, uUmhlaseli okukude angasebenzisa lokhu ukudala ukunqatshelwa kwensizakalo.

Njengenjwayelo lapho kukhishwa izibuyekezo zokuphepha, ICanonical incoma ukubuyekeza ngokushesha okukhulu. Izikhathi eziningi akukufanele ukuzimela kepha, uma ucabanga ukuthi izimbungulu ezimbili zingaxhashazwa ukude nokuthi kubiza malini ukusebenzisa izibuyekezo, kufanelekile ukukubuyekeza ngokushesha nje lapho sihlala phansi kukhompyutha.

Njengoba sishilo phambilini, Lesi sibuyekezo sizosetshenziswa ngokuphelele ngemuva kokufaka nokuqalisa kabusha ikhompyutha. Akunqatshelwe ukuthi iCanonical iphinde ikhiphe izinhlobo ezibuyekeziwe zeKernel ye-Ubuntu 18.10, 18.04 ne-16.04. Uma kunjalo, kungenzeka ukuthi ezinsukwini ezimbalwa kukhishwe i-Live Patch version ye-Ubuntu 18.04 ne-Ubuntu 16.04. Kunoma ikuphi, hlola ukuthi ngabe kukhona isibuyekezo esikhona bese usifaka ngokushesha okukhulu.