{"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\/hr\/blog\/news\/novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli","title":{"rendered":"Nova klasa ranjivosti Intel procesora prijeti da sahrani Hyper-Threading: objavljene su zakrpe-upravlja\u010di","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u010cinilo se da, nakon \u0161to su pro\u0161le godine otkrivene ranjivosti Meltdown i Spectre, vi\u0161e ni\u0161ta ne\u0107e upla\u0161iti obo\u017eavatelje i korisnike Intelovih procesora. Ipak, kompaniji je ponovo uspjelo iznenaditi nas. Ta\u010dnije, istra\u017eiva\u010di ranjivosti u mikroarhitekturi Intelovih procesora su nas iznenadili. Paket novih ranjivosti<\/a><\/noindex> Pod zajedni\u010dkim nazivom microarchitectural data sampling (MDS) prijeti kraj tehnologiji vi\u0161estrukih procesiranja ili Hyper-Threading (op\u0107enito poznatoj kao simultaneous multithreading, SMT). Istra\u017eivanja su pokazala da napad putem jednog od varijanti MDS mo\u017ee prekinuti izolaciju jednog od tokova Hyper-Threadinga i olak\u0161ati pristup osjetljivim podacima u baferima i portovima procesora (na razini ispod ke\u0161 memorije prvog nivoa). \u0160to u\u010diniti u tom slu\u010daju? Prvo \u0161to pada na pamet je isklju\u010diti Hyper-Threading, \u0161to su i u\u010dinili programeri ChromeOS-a. \u0160to \u0107e se dogoditi s performansama procesora? One \u0107e se smanjiti. Stupanj usporavanja mo\u017ee dose\u0107i 40%, a mo\u017eda i vi\u0161e.<\/p>\n

\"Nova<\/p>\n

Dok malo koji od programera operativnih sistema i aplikacija slijedi put ChromeOS-a, zakrpe i a\u017euriranja nisu se dugo zadr\u017eala<\/a><\/noindex>. Kompanija Apple je izdala a\u017euriranja za svoje ra\u010dunare i laptope koji se prodaju od 2011. godine. Prema rije\u010dima kompanije, svi sistemi pod upravom macOS Mojave 10.14 su ve\u0107 zakrpljeni<\/a><\/noindex>. To \u0107e sprije\u010diti napade putem Safarija i drugih aplikacija. Me\u0111utim, ve\u0107ina korisnika ne bi trebala osjetiti smanjenje performansi. Potpuno spre\u010davanje prijetnje, ipak, podrazumijeva isklju\u010divanje Hyper-Threadinga, \u0161to mo\u017ee smanjiti performanse do 40%. Zakrpice za operacijske sustave Sierra i High Sierra tako\u0111er \u0107e biti objavljene. Proizvodi iPhone, iPad i Watch nisu pogo\u0111eni ovim ranjivostima.<\/p>\n

Kompanija Google priprema zakrpe za Android i izmijenit \u0107e Chrome. Treba napomenuti da Android treba za\u0161tititi od MDS ranjivosti samo na x86 kompatibilnim platformama (za to posebno hvala Intelu za Atom procesore). Zakrpe za pametne telefone i tablete na Intel platformama trebaju objaviti proizvo\u0111a\u010di ure\u0111aja, a Google je ve\u0107 spreman poslati potrebni ispravljeni kod. Chromebooki (Chrome OS) su ve\u0107 za\u0161ti\u0107eni<\/a><\/noindex> zakrpice za nove ranjivosti, a u budu\u0107nosti \u0107e biti ispravljena sama operacijska sustav. U isto vrijeme, Google poziva korisnike da osiguraju da su proizvo\u0111a\u010di ure\u0111aja izdali potrebne zakrpice i (ili) da su te zakrpice dostavljene kompanijama Microsoft i Apple kao razvija\u010dima operativnih sustava. Za cloud platforme i podatkovne centre, kompanija Google ve\u0107 rasporedila<\/a><\/noindex> zakrpice za za\u0161titu serverskih procesora od MDS-a.<\/p>\n

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

Razvija\u010d preglednika Firefox, kompanija Mozilla, predstavit \u0107e zakrpane verzije aplikacije 21. svibnja. To \u0107e biti Firefox verzije 67 i Extended Support Release verzije 60.7. Preglednici Firefox Beta i Firefox Nightly ve\u0107 uklju\u010duju potrebne ispravke za za\u0161titu od nove ranjivosti.<\/p>\n

\"Nova<\/p>\n

Kompanija Microsoft tako\u0111er je izdala zakrpice za operacijske sustave i cloud platforme. Ipak, kompanija preporu\u010duje dobivanje ispravljenog mikrokoda od proizvo\u0111a\u010da ure\u0111aja, iako je tako\u0111er stvorila stranicu<\/a><\/noindex> za samostalno preuzimanje ispravki. U paket automatskih a\u017euriranja preko usluge Windows Update, zakrpa je tako\u0111er uklju\u010dena i bit \u0107e distribuirana po\u010dev\u0161i od \u010detvrtka. Usluga Microsoft Azure ve\u0107 je za\u0161ti\u0107ena od novih ranjivosti. Cloud usluga Amazon AWS tako\u0111er je zakrpana<\/a><\/noindex>.<\/p>\n

Na kraju, objavljene su zakrpice za operacijske sustave na Linuxu, kao \u0161to su Red Hat<\/a><\/noindex> i Ubuntu<\/a><\/noindex>. Nastavlja se.<\/p>\n

<\/p>\n

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

\t\t\t\t


\n\t\t\t\t\t\t\t\t<\/center>
Izvor: 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\udd47Nova klasa ranjivosti procesora Intel rizikuje da uni\u0161ti Hyper-Threading: objavljene su zakrpne-prekida\u010di | ProHoster","description":"Izgledalo je da nakon ranjivosti Meltdown i Spectre otkrivenih prije vi\u0161e od godinu dana, ni\u0161ta vi\u0161e ne mo\u017ee zastra\u0161iti obo\u017eavatelje i korisnike Intel procesora. Ipak, kompanije su nas ponovno uspjele iznenaditi.","canonical_url":"https:\/\/prohoster.info\/hr\/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":"hr_HR","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\/hr\/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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