{"id":33706,"date":"2019-10-31T21:54:17","date_gmt":"2019-10-31T18:54:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli\/"},"modified":"2019-10-31T21:54:17","modified_gmt":"2019-10-31T18:54:17","slug":"novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli","title":{"rendered":"Uus klass Intel'i protsessorite haavatavustest ohustab Hyper-Threading'i: v\u00e4lja on antud l\u00fclituspat\u0161id.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Tundub, et p\u00e4rast rohkem kui aasta eest tuvastatud Meltdown ja Spectre haavatavusi ei suuda Intel'i protsessorite f\u00e4nnid ja kasutajad enam millegagi \u00fcllatada. Sellegipoolest suutsid ettev\u00f5tted meid taas \u00fcllatada. T\u00e4psemalt \u00fcllatasid meid Intel'i protsessorite mikroarhitektuuri haavatavuste uurijad. Pakett uus haavatavusi<\/a><\/noindex> \u00fcldnimetuse microarchitectural data sampling (MDS) all on oht, et see l\u00f5petab mitme l\u00f5ime t\u00f6\u00f6tlemise tehnoloogia ehk Hyper-Threading (\u00fcldiselt \u2013 samaaegne mitme l\u00f5ime t\u00f6\u00f6tlemine, SMT). On selgunud, et r\u00fcnnak \u00fche MDS variandi abil v\u00f5ib katkestada \u00fche Hyper-Threading'i l\u00f5ime isolatsiooni ja h\u00f5lbustada juurdep\u00e4\u00e4su tundlikele andmetele protsessorite puutepunktides ja portides (k\u00f5rgeimal tasemel allpool esimese taseme vahem\u00e4lu). Mis sellega teha? Esimene m\u00f5te on v\u00e4lja l\u00fclitada Hyper-Threading, mida tegid ka ChromeOS arendajad. Milliseks see muudab protsessorite sooritusv\u00f5imet? See v\u00e4heneb. Kiirus v\u00f5ib m\u00f5jutada 40 % v\u00f5i isegi rohkem.<\/p>\n

\"Uus<\/p>\n

Praegu on v\u00e4he arendusmeeskondi operatsioonis\u00fcsteemide ja rakenduste alal, kes on j\u00e4rgnenud ChromeOS j\u00e4lgedes, kuid plaastrid ja uuendused ei j\u00e4tnud ennast kaua ootama<\/a><\/noindex>. Apple on v\u00e4lja andnud v\u00e4rskendused oma spetsialiseeritud lauaarvutitele ja s\u00fclearvutitele, mis on m\u00fc\u00fcgis alates 2011. aastast. Ettev\u00f5tte s\u00f5nul on k\u00f5ik macOS Mojave 10.14 s\u00fcsteemid juba pat\u0161itud<\/a><\/noindex>. See takistab r\u00fcnnakute toimumist Safari ja teiste rakenduste kaudu. Samal ajal ei peaks enamik kasutajatest m\u00e4rkama sooritusv\u00f5ime langust. Kuid t\u00e4iesti ohtude v\u00e4ltimine t\u00e4hendab Hyper-Threading'i v\u00e4ljal\u00fclitamist, mis v\u00f5ib alandada \u00fclesande sooritusv\u00f5ime kuni 40 %. Patches operatsioonis\u00fcsteemidele Sierra ja High Sierra avaldatakse samuti. iPhone'i, iPadi ja Watch tooteid need haavatavused ei puuduta.<\/p>\n

Google valmistab ette plaastreid Androidile ja uuendab Chrome'i. Tuleb mainida, et Androidi tuleb kaitsta MDS haavatavuste eest ainult x86-\u00fchilduvates platvormides (eriti ait\u00e4h Inteli Atom protsessorite eest). Pat\u0161id Intel platvormidel olevatele nutitelefonidele ja tahvelarvutitele peavad v\u00e4lja andma seadme tootjad, samas kui Google on juba valmis levitama vajalikke parandusi. Chromebooks (Chrome OS) on juba kaitstud<\/a><\/noindex> uutekide vastu, kuid tulevikus parandatakse ka operatsioonis\u00fcsteemi. Samal ajal kutsub Google kasutajaid \u00fcles veenduma, et seadme tootjad on v\u00e4lja andnud vajalikud plaastrid ja (v\u00f5i) et need on edastatud Microsoftile ja Apple'ile, kes on operatsioonis\u00fcsteemide arendajad. Pilveplatvormide ja andmekeskuste osas on Google juba levitanud<\/a><\/noindex> plaastrid serveriprotsessorite kaitsmiseks MDS-i vastu.<\/p>\n

<\/center><\/p>\n

Brauseri Firefox arendaja Mozilla esitleb plaastriga versioone rakendusest 21. mail. Need on Firefoxi versioonid 67 ja Extended Support Release versioon 60.7. Firefox Beta ja Firefox Nightly brauserid sisaldavad juba vajalikke parandusi uue haavatavuse eest.<\/p>\n

\"Uus<\/p>\n

Microsoft on samuti v\u00e4lja andnud plaastrid operatsioonis\u00fcsteemidele ja pilveplatvormidele. T\u00f5si, firma soovitab hankida parandatud mikrokoodi seadme tootjatelt, kuigi nad on samuti loonud lehe<\/a><\/noindex> iseseislike paranduste allalaadimiseks. Windows Update'i automaatsete v\u00e4rskenduste paketis on samuti sisalduv plaastrit levitatakse alates neljap\u00e4evast. Microsoft Azure teenus on juba kaitstud uute haavatavuste eest. Amazoni pilveteenus AWS samuti parandatud<\/a><\/noindex>.<\/p>\n

L\u00f5 finalmente, tulid plaastrid sellistele Linuxi operatsioonis\u00fcsteemidele nagu Red Hat<\/a><\/noindex> ja Ubuntu<\/a><\/noindex>. J\u00e4tkub.<\/p>\n

<\/p>\n

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Allikas: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u0430\u0437\u0430\u043b\u043e\u0441\u044c \u0431\u044b, \u0447\u0442\u043e \u043f\u043e\u0441\u043b\u0435 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043d\u044b\u0445 \u0431\u043e\u043b\u044c\u0448\u0435 \u0433\u043e\u0434\u0430 \u043d\u0430\u0437\u0430\u0434 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 Meltdown \u0438 Spectre \u0443\u0436\u0435 \u043d\u0438\u0447\u0442\u043e \u043d\u0435 \u0438\u0441\u043f\u0443\u0433\u0430\u0435\u0442 \u043f\u043e\u043a\u043b\u043e\u043d\u043d\u0438\u043a\u043e\u0432 \u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel. \u0418 \u0432\u0441\u0451 \u0436\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 \u0441\u043d\u043e\u0432\u0430 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u043d\u0430\u0441 \u0443\u0434\u0438\u0432\u0438\u0442\u044c. \u0422\u043e\u0447\u043d\u0435\u0435, \u0443\u0434\u0438\u0432\u0438\u043b\u0438 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u043c\u0438\u043a\u0440\u043e\u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel. \u041f\u0430\u043a\u0435\u0442 \u043d\u043e\u0432\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u043f\u043e\u0434 \u043e\u0431\u0449\u0438\u043c \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435\u043c microarchitectural data sampling (MDS) \u0433\u0440\u043e\u0437\u0438\u0442 \u043f\u043e\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u043a\u0440\u0435\u0441\u0442 \u043d\u0430 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u0442\u043e\u0447\u043d\u044b\u0445 \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u0439 \u0438\u043b\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25388,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-33706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Uus Intel'i protsessorite haavatavuste klass riskib matta Hyper-Threading'i: plaastrid-l\u00fclitid on ilmunud | ProHoster","description":"Tundub, et p\u00e4rast rohkem kui aasta tagasi avastatud Meltdown ja Spectre haavatavusi ei suuda miski enam Intel'i protsessorite toetajaid ja kasutajaid ehmatada. Siiski on ettev\u00f5ttel taas \u00f5nnestunud meid \u00fcllatada.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/news\/novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041d\u043e\u0432\u044b\u0439 \u043a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel \u0440\u0438\u0441\u043a\u0443\u0435\u0442 \u043f\u043e\u0445\u043e\u0440\u043e\u043d\u0438\u0442\u044c Hyper-Threading: \u0432\u044b\u0448\u043b\u0438 \u0437\u0430\u043f\u043b\u0430\u0442\u043a\u0438-\u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0438 | ProHoster","og:description":"\u041a\u0430\u0437\u0430\u043b\u043e\u0441\u044c \u0431\u044b, \u0447\u0442\u043e \u043f\u043e\u0441\u043b\u0435 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043d\u044b\u0445 \u0431\u043e\u043b\u044c\u0448\u0435 \u0433\u043e\u0434\u0430 \u043d\u0430\u0437\u0430\u0434 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 Meltdown \u0438 Spectre \u0443\u0436\u0435 \u043d\u0438\u0447\u0442\u043e \u043d\u0435 \u0438\u0441\u043f\u0443\u0433\u0430\u0435\u0442 \u043f\u043e\u043a\u043b\u043e\u043d\u043d\u0438\u043a\u043e\u0432 \u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 Intel. \u0418 \u0432\u0441\u0451 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