{"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\/ro\/blog\/news\/novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli","title":{"rendered":"Nou\u0103 clas\u0103 de vulnerabilit\u0103\u021bi \u00een procesoarele Intel risc\u0103 s\u0103 pun\u0103 cap\u0103t Hyper-Threading-ului: au ap\u0103rut corec\u021bii-dezactiv\u0103ri","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Se p\u0103rea c\u0103, dup\u0103 vulnerabilit\u0103\u021bile Meltdown \u0219i Spectre descoperite acum mai bine de un an, nimic nu va mai putea speria fanii \u0219i utilizatorii procesoarelor Intel. Cu toate acestea, compania a reu\u0219it din nou s\u0103 ne surprind\u0103. Mai exact, cercet\u0103torii \u00een vulnerabilit\u0103\u021bile arhitecturale ale procesoarelor Intel ne-au \u0219ocat. un nou grup de vulnerabilit\u0103\u021bi<\/a><\/noindex> Sub denumirea general\u0103 de microarchitectural data sampling (MDS) se preconizeaz\u0103 c\u0103 aceasta ar putea pune cap\u0103t tehnologiei calculului multithreading sau Hyper-Threading (\u00een general, denumit\u0103 simultaneous multithreading, SMT). S-a descoperit c\u0103 o atacare printr-una dintre variantele MDS poate \u00eentrerupe izola\u021bia unuia dintre firele Hyper-Threading \u0219i poate facilita accesul la date sensibile din buffer \u0219i porturile procesoarelor (la un nivel inferior cache-ului de nivel 1). Ce ar trebui s\u0103 facem \u00een aceast\u0103 situa\u021bie? Primul lucru care \u00eemi vine \u00een minte este dezactivarea Hyper-Threading, lucru pe care l-au f\u0103cut dezvoltatorii ChromeOS. Ce se va \u00eent\u00e2mpla cu performan\u021ba procesoarelor? Aceasta va sc\u0103dea. Gradul de \u00eencetinire poate ajunge p\u00e2n\u0103 la 40%, sau chiar mai mult.<\/p>\n

\"Nou\u0103<\/p>\n

Deocamdat\u0103, pu\u021bini dezvoltatori de sisteme de operare \u0219i aplica\u021bii au urmat calea ChromeOS, dar patch-urile \u0219i actualiz\u0103rile nu au \u00eent\u00e2rziat<\/a><\/noindex>. Compania Apple a lansat actualiz\u0103ri pentru computerele \u0219i laptopurile sale v\u00e2ndute din 2011. Conform companiei, toate sistemele care ruleaz\u0103 macOS Mojave 10.14 au fost deja actualizate<\/a><\/noindex>. Acest lucru va preveni atacurile prin Safari \u0219i alte aplica\u021bii. Totu\u0219i, majoritatea utilizatorilor nu ar trebui s\u0103 simt\u0103 o sc\u0103dere a performan\u021bei. Prevenirea complet\u0103 a amenin\u021b\u0103rii implic\u0103, totu\u0219i, dezactivarea Hyper-Threading, ceea ce poate reduce performan\u021ba cu p\u00e2n\u0103 la 40%. Patch-uri pentru sistemele de operare Sierra \u0219i High Sierra vor fi, de asemenea, lansate. Produsele iPhone, iPad \u0219i Watch nu sunt afectate de aceste vulnerabilit\u0103\u021bi.<\/p>\n

Compania Google preg\u0103te\u0219te patch-uri pentru Android \u0219i va actualiza Chrome. Trebuie spus c\u0103 Android trebuie protejat \u00eempotriva vulnerabilit\u0103\u021bilor MDS doar pe platformele compatibile x86 (pentru asta mul\u021bumim Intel pentru procesoarele Atom). Patch-uri pentru smartphone-uri \u0219i tablete pe platforme Intel ar trebui s\u0103 fie emise de produc\u0103torii de dispozitive, iar Google este deja preg\u0103tit\u0103 s\u0103 trimit\u0103 codul corect necesar pentru acest lucru. Chromebook-urile (Chrome OS) sunt deja protejate<\/a><\/noindex> noi patch-uri pentru vulnerabilit\u0103\u021bi, iar ulterior sistemul de operare va fi corectat. \u00centre timp, Google \u00eendeamn\u0103 utilizatorii s\u0103 se asigure c\u0103 produc\u0103torii de dispozitive au lansat patch-urile necesare \u0219i\/sau c\u0103 aceste patch-uri au fost furnizate companiei Microsoft \u0219i Apple, ca dezvoltatori ai sistemelor de operare. Pentru platformele cloud \u0219i centrele de date, Google a distribuit<\/a><\/noindex> patch-uri pentru protec\u021bia procesoarelor serverului \u00eempotriva MDS.<\/p>\n

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

Dezvoltatorul browserului Firefox, compania Mozilla, va prezenta versiunile patch-uite ale aplica\u021biei pe 21 mai. Vor fi versiunile 67 \u0219i Extended Support Release 60.7 ale Firefox. Browserele Firefox Beta \u0219i Firefox Nightly includ deja corec\u021biile necesare pentru a proteja \u00eempotriva noii vulnerabilit\u0103\u021bi.<\/p>\n

\"Nou\u0103<\/p>\n

Compania Microsoft a lansat, de asemenea, patch-uri pentru sistemele de operare \u0219i platformele cloud. Totu\u0219i, compania recomand\u0103 ob\u021binerea microcodului corectat de la produc\u0103torii de dispozitive, de\u0219i a creat \u0219i o pagin\u0103<\/a><\/noindex> pentru desc\u0103rcarea manual\u0103 a corec\u021biilor. Patch-ul a fost inclus \u0219i \u00een pachetul de actualiz\u0103ri automate prin serviciul Windows Update, \u0219i va fi distribuit \u00eencep\u00e2nd de joi. Serviciul Microsoft Azure este deja protejat \u00eempotriva noilor vulnerabilit\u0103\u021bi. Serviciul cloud Amazon AWS a fost, de asemenea, patch-uit<\/a><\/noindex>.<\/p>\n

\u00cen cele din urm\u0103, au fost lansate patch-uri pentru sisteme de operare Linux precum Red Hat<\/a><\/noindex> \u0219i Ubuntu<\/a><\/noindex>. Continuarea urmeaz\u0103.<\/p>\n

<\/p>\n

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

\t\t\t\t


\n\t\t\t\t\t\t\t\t<\/center>
Sursa: 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\udd47Nou\u0103 clas\u0103 de vulnerabilit\u0103\u021bi \u00een procesoarele Intel risc\u0103 s\u0103 compromit\u0103 Hyper-Threading: au fost lansate patch-uri-dezactive | ProHoster","description":"Ar p\u0103rea c\u0103, dup\u0103 ce vulnerabilit\u0103\u021bile Meltdown \u0219i Spectre au fost descoperite acum mai bine de un an, nimic nu \u00eei va mai speria pe fanii \u0219i utilizatorii procesoarelor Intel. Cu toate acestea, companiile au reu\u0219it din nou s\u0103 ne surprind\u0103.","canonical_url":"https:\/\/prohoster.info\/ro\/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":"ro_RO","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 \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.","og:url":"https:\/\/prohoster.info\/ro\/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 16:23:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 17:49:03","updated":"2026-01-21 16:23:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts\/33706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/comments?post=33706"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts\/33706\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/media\/25388"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/media?parent=33706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/categories?post=33706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/tags?post=33706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}