Debian o ile a lokolla lintlafatso tsa ts'ireletso khahlano le Specter V4 le V3a

Sebali sa Debian

Como Litaba tsa ts'ireletso tse amanang le sebapali li ile tsa tsebahala khale e faneng haholo ka ho bua ka likhoeli tsena.

Leha boholo ba litšitšili tse lebisang ho Specter li lokisitsoe Ho Linux, lits'oants'o tse ncha le mefuta e mecha haholo e entsoe.

Bakeng sa babali ba sa tsebeng kotsi ena, nka u joetsa joalo Specter ke ts'oaetso e amang li-microprocessor tsa sejoale-joale tse sebelisang ho noha hop.

Ho li-processor tse ngata, phethahatso ea likhakanyo e hlahang ka lebaka la ho hloleha ha moroalo e ka siea litlamorao tebeletso e ka senolang leseli la lekunutu ho motho ea hlaselang.

Mohlala, haeba mokhoa oa ho fihlella mohopolo o entsoe ke ts'ebetso e boletsoeng e boletsoeng ka holimo e ipapisitse le tlhaiso-leseling e ikemetseng, boemo ba cache ea data bo hlahisa mocha o ka lehlakoreng oo mohlaseli a ka khonang ho fumana leseli ka ona oa lekunutu. .

Sebakeng sa bofokoli bo le bong bo bonolo ho bo lokisa, tokomane ea Specter e hlalosa sehlopha sohle se ka bang kotsing.

Likotsi tsohle tseo li ipapisitse le ho sebelisa hampe litla-morao tsa ho bolaoa ha likhopolo-taba, mokhoa o atisang ho sebelisoa ho loants'a memory latency mme ka hona oa akofisa ts'ebetso ho li-microprocessor tsa sejoale-joale.

Haholo-holo Specter e shebile ho bolela lintho esale pele, e leng taba e ikhethang ea polao ea likhopolo-taba.

Ho fapana le ts'oaetso ea Meltdown e lokollotsoeng ka lona letsatsi leo, Specter ha ea itšetleha ka tšobotsi e itseng ea taolo ea memori processor e ikhethileng kapa hore na e sireletsa phihlello ea memori eo joang, empa e na le mokhoa o akaretsang.

Debian e lokolitse litokiso tsa ts'ireletso

Debian 10

Haufinyane sehlopha sa nts'etsopele se ikarabellang ho Morero oa Debian se hlahisitse firmware Khoutu e nyane ea Intel E ntlafalitsoe bakeng sa basebelisi ba lihlooho tsa Debian OS "Otlolla" ea GNU / Linux 9 ho fokotsa likotsi tse peli tsa morao-rao tsa Specter ho li-Intel CPU tse ling.

Khoeling e fetileng, hantle ka la 16 Phato, Moritz Muehlenhoff o phatlalalitse ho fumaneha ha apdeite ho microcode ea Intel e fanang ka ts'ehetso bakeng sa SSBD (Speculative Store Bypass Disable (SSBD) e hlokahalang ho sebetsana le ts'ireletso ea Specter Variant 4 ea ts'ireletso le Specter Variant 3a.

Leha ho le joalo, ntlafatso ea Intel microcode e lokollotsoeng khoeling e fetileng e ne e fumaneha feela bakeng sa mefuta e meng ea li-processor tsa Intel.

Ka lebaka la sena, Morero oa Debian o phatlalalitse Intel microcode firmware e ntlafalitsoeng e sebelisang ts'ehetso bakeng sa mefuta e meng ea Intel CPU SSBD bakeng sa basebelisi ba mofuta o mocha oa sistimi e leng Debian 9 Stretch ho lokisa likotsi tse peli tsa morao-rao tsa Specter tse fumanoeng ho li-Intel CPU tse ling.

Lethathamong la mangolo a phatlalatso, Moritz Muehlenhoff o itse:

«Ntlafatso ena e tla le cpu microcode e ntlafalitsoeng bakeng sa mefuta e meng ea Intel cpus e so kang e koaheloa ke ntlafatso ea Intel microcode, e lokollotsoeng joalo ka dsa-4273-1 (mme ka hona e fana ka ts'ehetso bakeng sa ssbd (e hlokehang ho lebisa 'specter v4' le ho lokisa ho 'Sper v3a') «.

Bakeng sa kabo e tsitsitseng ea Debian 9 Stretch mathata ana a lokiselitsoe ho

Mofuta oa 3.20180807a.1 ~ deb9u1.

Re khothaletsa hore o ntlafatse liphutheloana tsa Intel-microcode.

Morero oa Debian mema basebelisi bohle ba li-series tsa Debian OS Stretch ba sebelisang li-Intel CPU ho ntlafatsa firmware ea microcode ho mofuta 3.20180807a.1 ~ deb9u1, e ka jarolloang hanghang ho li-archives tse kholo.

Hape, ho lokisa ka botlalo bofokoli ba Specter, basebelisi ba tla hloka ho kenya ntlafatso ea morao-rao ea kernel.

E tsebahala haholo joalo ka Specter variant 3A (CVE-2018-3640) "Rogue System Register Register" le Specter variant 4 CVE-2018-3639 "Speculative Store Bypass", ka bobeli ke tlokotsi ea Side-Channel e ka lumellang bahlaseli ho fumana leseli lekunutu ka litsamaiso tse tlokotsing. Ke liphoso tse tebileng 'me li tlameha ho lokisoa kapele kamoo ho ka khonehang.

Qetellong, ho lekane hore sistimi ea rona e ntlafatsoe ka botlalo le mefuta ea morao-rao ea likarolo tsa eona.

 


Litaba tsa sengoloa sena li latela melao-motheo ea rona ea melao ea boitšoaro ea bongoli. Ho tlaleha phoso tlanya mona.

Tlhaloso, tlohela ea hau

Siea maikutlo a hau

aterese ya hao ya imeile ke ke ho phatlalatswa.

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  1. E ikarabella bakeng sa data: Miguel Ángel Gatón
  2. Morero oa data: Laola SPAM, tsamaiso ea maikutlo.
  3. Molao: Tumello ea hau
  4. Puisano ea data: Lintlha li ke ke tsa tsebisoa batho ba boraro ntle le ka tlamo ea molao.
  5. Polokelo ea data: Database e hapiloeng ke Occentus Networks (EU)
  6. Litokelo: Nako efe kapa efe o ka fokotsa, oa hlaphoheloa mme oa hlakola tlhaiso-leseling ea hau.

  1.   HO2Gi a re

    Litaba tse monate haholo

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