{"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\/sk\/blog\/news\/novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli","title":{"rendered":"Nov\u00e1 trieda zranite\u013enost\u00ed procesorov Intel hroz\u00ed zru\u0161en\u00edm Hyper-Threadingu: vy\u0161li opravy-vyp\u00edna\u010de","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Mohlo by sa zda\u0165, \u017ee po zisten\u00fdch zranite\u013enostiach Meltdown a Spectre pred viac ako rokom u\u017e ni\u010d nem\u00f4\u017ee vystra\u0161i\u0165 fan\u00fa\u0161ikov a pou\u017e\u00edvate\u013eov procesorov Intel. A predsa n\u00e1s spolo\u010dnosti op\u00e4\u0165 dok\u00e1zali prekvapi\u0165. Presnej\u0161ie, prekvapili v\u00fdskumn\u00edci zranite\u013enost\u00ed v mikroarchitekt\u00fare procesorov Intel. Bal\u00edk nov\u00fdch zranite\u013enost\u00ed<\/a><\/noindex> pod spolo\u010dn\u00fdm n\u00e1zvom microarchitectural data sampling (MDS) hroz\u00ed, \u017ee zlikviduje technol\u00f3giu viaccov\u00fdhodn\u00e9ho spracovania alebo Hyper-Threading (vo v\u0161eobecnosti - simultaneous multithreading, SMT). Uk\u00e1zalo sa, \u017ee \u00fatok pomocou jednej z variant MDS m\u00f4\u017ee naru\u0161i\u0165 izol\u00e1ciu jedn\u00e9ho z pr\u00fadov Hyper-Threading a u\u013eah\u010di\u0165 pr\u00edstup k citliv\u00fdm \u00fadajom v pam\u00e4tiach a portoch procesorov (na \u00farovni pod cache pam\u00e4\u0165ou prvej \u00farovne). \u010co s t\u00fdm robi\u0165? Prv\u00e9, \u010do napadne, je vypn\u00fa\u0165 Hyper-Threading, \u010do urobili aj v\u00fdvoj\u00e1ri ChromeOS. Ak\u00fd to bude ma\u0165 dopad na v\u00fdkon procesorov? Zn\u00ed\u017ei sa. Miera spomalenia m\u00f4\u017ee dosiahnu\u0165 40 %, mo\u017eno aj viac.<\/p>\n

\"Nov\u00e1<\/p>\n

K\u00fdm sa mnoh\u00ed v\u00fdvoj\u00e1ri opera\u010dn\u00fdch syst\u00e9mov a aplik\u00e1ci\u00ed nevybrali cestou ChromeOS, opravy a aktualiz\u00e1cie ne\u010dakali<\/a><\/noindex>. Spolo\u010dnos\u0165 Apple vydala aktualiz\u00e1cie pre svoje po\u010d\u00edta\u010de a notebooky, ktor\u00e9 sa pred\u00e1vaj\u00fa od roku 2011. Pod\u013ea spolo\u010dnosti u\u017e boli v\u0161etky syst\u00e9my s macOS Mojave 10.14 opravovan\u00e9<\/a><\/noindex>. To zabr\u00e1ni \u00fatokom cez Safari a in\u00e9 aplik\u00e1cie. V\u00e4\u010d\u0161ina pou\u017e\u00edvate\u013eov by v\u0161ak nemala poc\u00edti\u0165 zn\u00ed\u017eenie v\u00fdkonu. \u00dapln\u00e9 odstr\u00e1nenie hrozby v\u0161ak predpoklad\u00e1 vypnutie Hyper-Threading, \u010do m\u00f4\u017ee zn\u00ed\u017ei\u0165 v\u00fdkon o 40 %. Z\u00e1platy pre OS Sierra a High Sierra bud\u00fa taktie\u017e vydan\u00e9. Produkty iPhone, iPad a Watch sa t\u00fdmito zranite\u013enos\u0165ami net\u00fdkaj\u00fa.<\/p>\n

Spolo\u010dnos\u0165 Google pripravuje opravy pre Android a bude aktualizova\u0165 Chrome. Je potrebn\u00e9 poveda\u0165, \u017ee Android je potrebn\u00e9 chr\u00e1ni\u0165 pred zranite\u013enos\u0165ami MDS iba na platform\u00e1ch kompatibiln\u00fdch s x86 (za to patr\u00ed samostatn\u00e9 po\u010fakovanie Intelu za procesory Atom). Opravy pre smartf\u00f3ny a tablety na platform\u00e1ch Intel by mali vyda\u0165 v\u00fdrobcovia zariaden\u00ed, pri\u010dom Google je u\u017e pripraven\u00e1 distribuova\u0165 potrebn\u00fd opravn\u00fd k\u00f3d. Chromebooks (Chrome OS) u\u017e s\u00fa chr\u00e1nen\u00e9.<\/a><\/noindex> z\u00e1platami na nov\u00e9 zranite\u013enosti, pri\u010dom v bud\u00facnosti bude opraven\u00fd aj samotn\u00fd opera\u010dn\u00fd syst\u00e9m. Z\u00e1rove\u0148 Google vyz\u00fdva pou\u017e\u00edvate\u013eov, aby sa uistili, \u017ee v\u00fdrobcovia zariaden\u00ed vydali potrebn\u00e9 opravy a\/alebo tieto opravy poskytli spolo\u010dnostiam Microsoft a Apple ako v\u00fdvoj\u00e1rom opera\u010dn\u00fdch syst\u00e9mov. Pre cloudov\u00e9 platformy a d\u00e1tov\u00e9 centr\u00e1 u\u017e spolo\u010dnos\u0165 Google distribuovala<\/a><\/noindex> z\u00e1platy na ochranu serverov\u00fdch procesorov pred MDS.<\/p>\n

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

V\u00fdvoj\u00e1r prehliada\u010da Firefox, spolo\u010dnos\u0165 Mozilla, predstav\u00ed opraven\u00e9 verzie aplik\u00e1cie 21. m\u00e1ja. Bude to verzia Firefox 67 a verzia Extended Support Release 60.7. Prehliada\u010de Firefox Beta a Firefox Nightly u\u017e obsahuj\u00fa potrebn\u00e9 opravy na ochranu pred novou zranite\u013enos\u0165ou.<\/p>\n

\"Nov\u00e1<\/p>\n

Spolo\u010dnos\u0165 Microsoft tie\u017e vydala z\u00e1platy pre opera\u010dn\u00e9 syst\u00e9my a cloudov\u00e9 platformy. Pravda, spolo\u010dnos\u0165 odpor\u00fa\u010da z\u00edska\u0165 opraven\u00fd mikrok\u00f3d od v\u00fdrobcov zariaden\u00ed, aj ke\u010f tie\u017e vytvorila str\u00e1nku<\/a><\/noindex> pre samostatn\u00e9 s\u0165ahovanie opr\u00e1v. V bal\u00edku automatick\u00fdch aktualiz\u00e1ci\u00ed prostredn\u00edctvom servisu Windows Update bola z\u00e1plata tie\u017e zaraden\u00e1 a bude distribuovan\u00e1 od \u0161tvrtka. Slu\u017eba Microsoft Azure je u\u017e chr\u00e1nen\u00e1 pred nov\u00fdmi zranite\u013enos\u0165ami. Cloudov\u00e1 slu\u017eba Amazon AWS bola tie\u017e opraven\u00e1<\/a><\/noindex>.<\/p>\n

Nakoniec boli vydan\u00e9 z\u00e1platy pre opera\u010dn\u00e9 syst\u00e9my na Linuxe, ako je Red Hat<\/a><\/noindex> a Ubuntu<\/a><\/noindex>. Pokra\u010dovanie nasledova\u0165.<\/p>\n

<\/p>\n

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Zdroj: 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\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\udd47Nov\u00e1 trieda zranite\u013enost\u00ed procesorov Intel rizikuje zni\u010di\u0165 Hyper-Threading: boli vydan\u00e9 z\u00e1platy-vyp\u00edna\u010de | ProHoster","description":"Zdalo by sa, \u017ee po zranite\u013enostiach Meltdown a Spectre zisten\u00fdch pred viac ako rokom u\u017e ni\u010d neprekvap\u00ed priaznivcov a pou\u017e\u00edvate\u013eov procesorov Intel. A predsa sa spolo\u010dnostiam op\u00e4\u0165 podarilo n\u00e1s prekvapi\u0165.","canonical_url":"https:\/\/prohoster.info\/sk\/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":"sk_SK","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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\u0443\u0434\u0438\u0432\u0438\u0442\u044c.","og:url":"https:\/\/prohoster.info\/sk\/blog\/news\/novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T18:54:17+00:00","article:modified_time":"2019-10-31T18:54:17+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"33706","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-21 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