{"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\/hu\/blog\/news\/novyj-klass-uyazvimostej-protsessorov-intel-riskuet-pohoronit-hyper-threading-vyshli-zaplatki-vyklyuchateli","title":{"rendered":"Az Intel processzorok \u00faj sebezhet\u0151s\u00e9gi oszt\u00e1lya vesz\u00e9lyezteti a Hyper-Threadinget: meg\u00e9rkeztek a jav\u00edt\u00f3 kapcsol\u00f3k","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00dagy t\u0171nt, hogy a Meltdown \u00e9s Spectre egy \u00e9vvel ezel\u0151tt felfedezett sebezhet\u0151s\u00e9gei ut\u00e1n m\u00e1r semmi sem r\u00e9m\u00edti meg az Intel processzorok rajong\u00f3it \u00e9s felhaszn\u00e1l\u00f3it. M\u00e9gis, a v\u00e1llalatnak ism\u00e9t siker\u00fclt meglepnie minket. Pontosabban, a sebezhet\u0151s\u00e9gekkel foglalkoz\u00f3 kutat\u00f3k leptek meg minket. Egy \u00faj, sebezhet\u0151s\u00e9gi csomag<\/a><\/noindex> A microarchitectural data sampling (MDS) n\u00e9ven ismert probl\u00e9ma vesz\u00e9lyezteti a t\u00f6bb sz\u00e1lon fut\u00f3 sz\u00e1m\u00edt\u00e1stechnikai technol\u00f3gi\u00e1kat, vagyis a Hyper-Threadinget (\u00e1ltal\u00e1nosan - simultaneous multithreading, SMT). Kider\u00fclt, hogy az MDS egyik vari\u00e1nsa k\u00e9pes megszak\u00edtani a Hyper-Threading egyik sz\u00e1l\u00e1nak elszigetelts\u00e9g\u00e9t, lehet\u0151v\u00e9 t\u00e9ve a hozz\u00e1f\u00e9r\u00e9st \u00e9rz\u00e9keny adatokhoz, amelyek a processzorok pufferjeiben \u00e9s portjaiban t\u00e1rol\u00f3dnak (az els\u0151 szint\u0171 cache szintj\u00e9n alatta). Mit lehet ezzel tenni? Az els\u0151 dolog, ami esz\u00fcnkbe jut, az a Hyper-Threading letilt\u00e1sa, amit a ChromeOS fejleszt\u0151i is v\u00e9grehajtottak. Milyen hat\u00e1ssal lesz ez a processzorok teljes\u00edtm\u00e9ny\u00e9re? Az cs\u00f6kkenni fog. A lassul\u00e1s m\u00e9rt\u00e9ke el\u00e9rheti ak\u00e1r a 40 %-ot, de ak\u00e1r enn\u00e9l is t\u00f6bbet.<\/p>\n

\"Az<\/p>\n

Jelenleg m\u00e9g kevesen vannak a rendszerszoftverek \u00e9s alkalmaz\u00e1sok fejleszt\u0151i k\u00f6z\u00f6tt, akik k\u00f6vett\u00e9k volna a ChromeOS p\u00e9ld\u00e1j\u00e1t, de a jav\u00edt\u00e1sok \u00e9s friss\u00edt\u00e9sek nem maradtak el<\/a><\/noindex>. Az Apple friss\u00edt\u00e9seket adott ki a 2011 \u00f3ta forgalmazott saj\u00e1t sz\u00e1m\u00edt\u00f3g\u00e9peikre \u00e9s laptopjaikra. A c\u00e9g \u00e1ll\u00edt\u00e1sa szerint minden macOS Mojave 10.14 alatt fut\u00f3 rendszer m\u00e1r jav\u00edtva lett<\/a><\/noindex>. Ez megakad\u00e1lyozza a Safari \u00e9s m\u00e1s alkalmaz\u00e1sokon kereszt\u00fcli t\u00e1mad\u00e1sokat. A legt\u00f6bb felhaszn\u00e1l\u00f3nak azonban nem kellene \u00e9szlelnie a teljes\u00edtm\u00e9nycs\u00f6kken\u00e9st. A fenyeget\u00e9s teljes elh\u00e1r\u00edt\u00e1sa azonban a Hyper-Threading letilt\u00e1s\u00e1t jelenti, ami a teljes\u00edtm\u00e9ny cs\u00f6kken\u00e9s\u00e9t ak\u00e1r 40 %-kal is eredm\u00e9nyezheti. A Sierra \u00e9s High Sierra oper\u00e1ci\u00f3s rendszerekhez is kiadnak jav\u00edt\u00e1sokat. Az iPhone, iPad \u00e9s Watch term\u00e9keket ezek a sebezhet\u0151s\u00e9gek nem \u00e9rintik.<\/p>\n

A Google jav\u00edt\u00e1sokat k\u00e9sz\u00edt az Android sz\u00e1m\u00e1ra, \u00e9s friss\u00edti a Chrome-ot. Meg kell eml\u00edteni, hogy az Android v\u00e9delme a MDS sebezhet\u0151s\u00e9geivel szemben csak az x86-kompatibilis platformokon fontos (k\u00f6sz\u00f6net Intel az Atom processzorok\u00e9rt). Az Intel platformjain m\u0171k\u00f6d\u0151 okostelefonok \u00e9s t\u00e1blag\u00e9pek gy\u00e1rt\u00f3inak kell kiadniuk a jav\u00edt\u00e1sokat, \u00e9s a Google m\u00e1r k\u00e9szen \u00e1ll arra, hogy elk\u00fcldje a sz\u00fcks\u00e9ges m\u00f3dos\u00edtott k\u00f3dot. A Chromebookok (Chrome OS) m\u00e1r v\u00e9dettek.<\/a><\/noindex> \u00faj sebezhet\u0151s\u00e9gek elleni jav\u00edt\u00e1sokat, a j\u00f6v\u0151ben pedig mag\u00e1t a oper\u00e1ci\u00f3s rendszer is jav\u00edtani fogj\u00e1k. Ek\u00f6zben a Google arra k\u00e9ri a felhaszn\u00e1l\u00f3kat, hogy gy\u0151z\u0151djenek meg arr\u00f3l, hogy az eszk\u00f6zgy\u00e1rt\u00f3k kiadt\u00e1k a sz\u00fcks\u00e9ges jav\u00edt\u00e1sokat \u00e9s\/vagy ezeket a jav\u00edt\u00e1sokat a Microsoft \u00e9s Apple, mint oper\u00e1ci\u00f3s rendszerek fejleszt\u0151i biztos\u00edtott\u00e1k. A felh\u0151platformok \u00e9s adatk\u00f6zpontok sz\u00e1m\u00e1ra a Google m\u00e1r elterjesztette<\/a><\/noindex> a jav\u00edt\u00e1sokat a szerver processzorok v\u00e9delme \u00e9rdek\u00e9ben az MDS ellen.<\/p>\n

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

A Firefox b\u00f6ng\u00e9sz\u0151t fejleszt\u0151 c\u00e9g, a Mozilla, m\u00e1jus 21-\u00e9n mutatja be a patchelt v\u00e1ltozatokat. Ezek a 67-es Firefox verzi\u00f3 \u00e9s a 60.7-es Extended Support Release verzi\u00f3 lesznek. A Firefox Beta \u00e9s a Firefox Nightly b\u00f6ng\u00e9sz\u0151k m\u00e1r tartalmazz\u00e1k a sz\u00fcks\u00e9ges jav\u00edt\u00e1sokat az \u00faj sebezhet\u0151s\u00e9g ellen.<\/p>\n

\"Az<\/p>\n

A Microsoft szint\u00e9n kiadta a jav\u00edt\u00e1sokat az oper\u00e1ci\u00f3s rendszerekhez \u00e9s felh\u0151platformokhoz. Igaz, a c\u00e9g javasolja, hogy a felhaszn\u00e1l\u00f3k az eszk\u00f6zgy\u00e1rt\u00f3kt\u00f3l szerezz\u00e9k be a jav\u00edtott mikrok\u00f3dot, de emellett l\u00e9trehozott egy oldalt<\/a><\/noindex> a jav\u00edt\u00e1sok \u00f6n\u00e1ll\u00f3 let\u00f6lt\u00e9s\u00e9re. Az automatikus friss\u00edt\u00e9si csomag a Windows Update szolg\u00e1ltat\u00e1son kereszt\u00fcl is tartalmazza a jav\u00edt\u00e1st, \u00e9s cs\u00fct\u00f6rt\u00f6kt\u0151l kezd\u0151d\u0151en el\u00e9rhet\u0151 lesz. A Microsoft Azure szolg\u00e1ltat\u00e1s m\u00e1r v\u00e9dett az \u00faj sebezhet\u0151s\u00e9gekkel szemben. Az Amazon AWS felh\u0151szolg\u00e1ltat\u00e1s szint\u00e9n jav\u00edtva lett.<\/a><\/noindex>.<\/p>\n

V\u00e9g\u00fcl jav\u00edt\u00e1sok \u00e9rkeztek olyan Linux oper\u00e1ci\u00f3s rendszerekhez, mint Red Hat<\/a><\/noindex> \u00e9s Ubuntu<\/a><\/noindex>. Tov\u00e1bb k\u00f6vetkezik.<\/p>\n

<\/p>\n

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Forr\u00e1s: 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\udd47Az Intel processzorok \u00faj sebezhet\u0151s\u00e9gi oszt\u00e1lya kock\u00e1ztatja a Hyper-Threading eltemet\u00e9s\u00e9t: megjelentek a jav\u00edt\u00e1sok \u2013 a kikapcsol\u00e1sok | ProHoster","description":"\u00dagy t\u0171nik, hogy miut\u00e1n t\u00f6bb mint egy \u00e9vvel ezel\u0151tt felfedezt\u00e9k a Meltdown \u00e9s Spectre sebezhet\u0151s\u00e9geket, semmi nem r\u00e9m\u00edtheti meg az Intel processzorok h\u00edveit \u00e9s felhaszn\u00e1l\u00f3it. M\u00e9gis a c\u00e9geknek \u00fajra siker\u00fclt meglepni\u00fck minket.","canonical_url":"https:\/\/prohoster.info\/hu\/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":"hu_HU","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\/hu\/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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