{"id":34126,"date":"2019-10-31T21:56:32","date_gmt":"2019-10-31T18:56:32","guid":{"rendered":"https:\/\/prohoster.info\/blog\/amd-nakanune-zapuska-zen-2-zayavila-o-bezopasnosti-i-neuyazvimosti-svoih-tsp-k-novym-atakam\/"},"modified":"2019-10-31T21:56:32","modified_gmt":"2019-10-31T18:56:32","slug":"amd-nakanune-zapuska-zen-2-zayavila-o-bezopasnosti-i-neuyazvimosti-svoih-tsp-k-novym-atakam","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/amd-nakanune-zapuska-zen-2-zayavila-o-bezopasnosti-i-neuyazvimosti-svoih-tsp-k-novym-atakam","title":{"rendered":"AMD udtalte for nylig, at deres CPU'er er sikre og immune over for nye angreb p\u00e5 Zen 2 lanceringen","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Det er nu over et \u00e5r siden, at Spectre og Meltdown blev opdaget, og markedet for processorer har v\u00e6ret i opr\u00f8r over opdagelsen af stadig flere s\u00e5rbarheder relateret til spekulativ beregning. De mest udsatte er inklusive<\/a><\/noindex> den seneste<\/a><\/noindex> ZombieLoad<\/a><\/noindex>, med Intel-chips. Selvf\u00f8lgelig har AMD ikke ladet dette g\u00e5 forbi, men har fokuseret p\u00e5 sikkerheden i deres CPU'er.<\/p>\n

\"AMD<\/p>\n

P\u00e5 siden<\/noindex>, omkring Spectre-lignende s\u00e5rbarheder, meddelte virksomheden stolt: «Hos AMD udvikler vi vores produkter og tjenester med fokus p\u00e5 sikkerhedskrav. Baseret p\u00e5 vores interne analyser og diskussioner med sikkerhedsforskere, mener vi, at vores produkter ikke er s\u00e5rbare over for angreb Fallout, RIDL<\/a><\/noindex> eller ZombieLoad<\/a><\/noindex> p\u00e5 grund af de eksisterende hardware-beskyttelsestjek i vores arkitektur. Vi har ikke kunne genskabe disse s\u00e5rbarheder p\u00e5 AMDs produkter, og vi har ingen oplysninger om, at nogen anden skulle have v\u00e6ret i stand til at g\u00f8re dette». Det rapporteres, at AMDs CPU'er er sikre mod endnu et angreb MDS<\/a><\/noindex> \u2014 Store-to-Leak Forwarding<\/a><\/noindex>.<\/p>\n

Som et resultat af opdagelsen af stadig nye s\u00e5rbarheder og behovet for producenter at installere relevante patches, kan AMD-processorer vise sig at v\u00e6re mere effektive end konkurrentens l\u00f8sninger i henhold til en nylig uafh\u00e6ngig unders\u00f8gelsen<\/a><\/noindex>, gennemf\u00f8rt af Phoronix, viser, at anvendelsen af alle rettelser til den identificerede suite af processors\u00e5rbarheder relateret til spekulative beregninger resulterer i et gennemsnitligt ydelsestab p\u00e5 16 % for Intel CPU'er (n\u00e5r Hyper-Threading er deaktiveret — helt op til 25 %). I tilf\u00e6lde af AMD Zen+ processorer falder ydelsen under de samme forhold kun med 3 %.<\/p>\n

<\/center>
\n\"AMD<\/p>\n

V\u00e6rre endnu: Apple og Google anbefaler<\/a><\/noindex> brugere af Intel fuldst\u00e6ndigt at deaktivere Hyper-Threading, hvilket kan reducere ydelsen med op til 40–50 % (afh\u00e6ngigt af opgaven). Selve Intel anbefaler ikke at g\u00f8re dette<\/a><\/noindex> i de fleste tilf\u00e6lde, men problemet kan vise sig at v\u00e6re s\u00e6rligt kritisk for arbejdsstationer, servere og andre omr\u00e5der, der er f\u00f8lsomme over for ydeevne og sikkerhed. I tilf\u00e6lde af AMD-chips er deaktivering af en tilsvarende teknologi kaldet Simultaneous Multi-Threading ikke n\u00f8dvendig. Derudover kan str\u00f8mmen af nyheder om s\u00e5rbarheder, inklusive oplysninger om fors\u00f8g p\u00e5 at skjule information fra Intel<\/a><\/noindex> , ikke undg\u00e5 at p\u00e5virke virksomhedens image.<\/p>\n

Disse nyheder kommer p\u00e5 et s\u00e6rligt d\u00e5rligt tidspunkt for Intel: AMD er ved at lancere en familie af moderne 7-nanometer CPU'er med Zen 2-arkitektur til desktop- og serveropgaver. Imens bruger Intel stadig den meget gamle (udviklingsm\u00e6ssigt set) 14-nm teknologi og kan ikke f\u00e5 gang i masseproduktion af 10-nm chips. Alt dette spiller i h\u00e6nderne p\u00e5 AMD, som derfor helt sikkert vil forts\u00e6tte med at \u00f8ge sin markedsandel.<\/p>\n

\"AMD<\/p>\n

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\t\t\t\t


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

\u0412\u043e\u0442 \u0443\u0436\u0435 \u0431\u043e\u043b\u044c\u0448\u0435 \u0433\u043e\u0434\u0430 \u043f\u043e\u0441\u043b\u0435 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f Spectre \u0438 Meltdown \u0440\u044b\u043d\u043e\u043a \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 \u043b\u0438\u0445\u043e\u0440\u0430\u0434\u0438\u0442 \u043e\u0442 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0432\u0441\u0451 \u043d\u043e\u0432\u044b\u0445 \u0438 \u043d\u043e\u0432\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441\u043e \u0441\u043f\u0435\u043a\u0443\u043b\u044f\u0442\u0438\u0432\u043d\u044b\u043c\u0438 \u0432\u044b\u0447\u0438\u0441\u043b\u0435\u043d\u0438\u044f\u043c\u0438. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u043d\u044b\u043c\u0438 \u0438\u043c, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u044e\u044e ZombieLoad, \u043e\u043a\u0430\u0437\u0430\u043b\u0438\u0441\u044c \u0447\u0438\u043f\u044b Intel. \u041a\u043e\u043d\u0435\u0447\u043d\u043e, AMD \u043d\u0435 \u043f\u0440\u0435\u043c\u0438\u043d\u0443\u043b\u0430 \u0432\u043e\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u044d\u0442\u0438\u043c, \u0434\u0435\u043b\u0430\u044f \u0430\u043a\u0446\u0435\u043d\u0442 \u043d\u0430 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0441\u0432\u043e\u0438\u0445 \u0426\u041f. \u041d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0435, \u043f\u043e\u0441\u0432\u044f\u0449\u0451\u043d\u043d\u043e\u0439 Spectre-\u043f\u043e\u0434\u043e\u0431\u043d\u044b\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u043c, \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f \u0433\u043e\u0440\u0434\u043e \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0430: «\u041c\u044b \u0432 AMD […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25751,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-34126","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\udd47AMD meddelte dagen f\u00f8r lanceringen af Zen 2, at deres CPU'er er sikre og uv\u00e6gerlige overfor nye angreb | ProHoster","description":"Det er nu mere end et \u00e5r siden, at Spectre og Meltdown blev opdaget, og markedet for processorer er rystet af opdagelsen af stadig flere og flere s\u00e5rbarheder relateret til 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