{"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\/cs\/blog\/news\/amd-nakanune-zapuska-zen-2-zayavila-o-bezopasnosti-i-neuyazvimosti-svoih-tsp-k-novym-atakam","title":{"rendered":"AMD p\u0159ed spu\u0161t\u011bn\u00edm Zen 2 prohl\u00e1sila o bezpe\u010dnosti a odolnosti sv\u00fdch procesor\u016f v\u016f\u010di nov\u00fdm \u00fatok\u016fm","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

U\u017e v\u00edce ne\u017e rok po objeven\u00ed Spectre a Meltdown trh procesor\u016f za\u017e\u00edv\u00e1 ot\u0159esy zp\u016fsoben\u00e9 neust\u00e1l\u00fdm objevov\u00e1n\u00edm nov\u00fdch a nov\u00fdch zranitelnost\u00ed souvisej\u00edc\u00edch se spekulativn\u00edmi v\u00fdpo\u010dty. Nejv\u00edce jsou jimi posti\u017eeny v\u010detn\u011b<\/a><\/noindex> posledn\u00ed<\/a><\/noindex> ZombieLoad<\/a><\/noindex>, \u010dipy Intel. Samoz\u0159ejm\u011b, AMD toho r\u00e1da vyu\u017eila, kladla d\u016fraz na bezpe\u010dnost sv\u00fdch procesor\u016f.<\/p>\n

\"AMD<\/p>\n

Na str\u00e1nce<\/noindex>, v\u011bnovan\u00e9 zranitelnostem podobn\u00fdm Spectre, spole\u010dnost hrd\u011b ozn\u00e1mila: «Ve spole\u010dnosti AMD vyv\u00edj\u00edme na\u0161e produkty a slu\u017eby s ohledem na bezpe\u010dnostn\u00ed po\u017eadavky. Na z\u00e1klad\u011b proveden\u00e9 intern\u00ed anal\u00fdzy a diskuz\u00ed s bezpe\u010dnostn\u00edmi v\u00fdzkumn\u00edky se domn\u00edv\u00e1me, \u017ee na\u0161e produkty nejsou n\u00e1chyln\u00e9 k \u00fatok\u016fm Fallout, RIDL<\/a><\/noindex> nebo ZombieLoad<\/a><\/noindex> kv\u016fli p\u0159\u00edtomnosti hardwarov\u00fdch ochrann\u00fdch mechanism\u016f v na\u0161\u00ed architektu\u0159e. Nemohli jsme tyto zranitelnosti reprodukovat na produktech AMD a nem\u00e1me informace o tom, \u017ee by je n\u011bkdo jin\u00fd dok\u00e1zal vyu\u017e\u00edt». Je hl\u00e1\u0161eno, \u017ee procesory AMD jsou tak\u00e9 odoln\u00e9 v\u016f\u010di dal\u0161\u00edmu \u00fatoku MDS<\/a><\/noindex> \u2014 Store-to-Leak Forwarding<\/a><\/noindex>.<\/p>\n

V d\u016fsledku neust\u00e1l\u00e9ho objevov\u00e1n\u00ed nov\u00fdch zranitelnost\u00ed a pot\u0159eby v\u00fdrobc\u016f uplat\u0148ovat proti nim odpov\u00eddaj\u00edc\u00ed z\u00e1platy mohou procesory AMD b\u00fdt v\u00fdkonn\u011bj\u0161\u00ed ne\u017e \u0159e\u0161en\u00ed konkurence podle ned\u00e1vn\u00e9 nez\u00e1visl\u00e9 v\u00fdzkumu<\/a><\/noindex>, proveden\u00e9m webem Phoronix, vyu\u017eit\u00ed cel\u00e9ho spektra oprav pro zji\u0161t\u011bn\u00fd soubor zranitelnost\u00ed procesor\u016f spojen\u00fdch se spekulativn\u00edmi v\u00fdpo\u010dty vede k pr\u016fm\u011brn\u00e9mu poklesu v\u00fdkonu procesor\u016f Intel o 16 % (p\u0159i vypnut\u00ed technologie Hyper-Threading a\u017e o 25 %). U procesor\u016f AMD Zen+ pak v\u00fdkon za stejn\u00fdch podm\u00ednek kles\u00e1 pouze o 3 %.<\/p>\n

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

Zat\u00edmco Apple a Google doporu\u010duj\u00ed<\/a><\/noindex> u\u017eivatel\u016fm Intel d\u016frazn\u011b doporu\u010duje \u00fapln\u00e9 vypnut\u00ed technologie Hyper-Threading, co\u017e m\u016f\u017ee v n\u011bkter\u00fdch p\u0159\u00edpadech sn\u00ed\u017eit v\u00fdkon a\u017e o 40\u201350 % (v z\u00e1vislosti na \u00faloze). Samotn\u00e1 Intel nedoporu\u010duje to d\u011blat<\/a><\/noindex> ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f, ale probl\u00e9m m\u016f\u017ee b\u00fdt obzvl\u00e1\u0161\u0165 kritick\u00fd pro pracovn\u00ed stanice, servery a dal\u0161\u00ed oblasti citliv\u00e9 na v\u00fdkon a bezpe\u010dnost. U procesor\u016f AMD nen\u00ed vypnut\u00ed podobn\u00e9 technologie Simultaneous Multi-Threading pot\u0159eba. Nav\u00edc tok zpr\u00e1v o zranitelnostech, v\u010detn\u011b informac\u00ed o pokusech Intelu skr\u00fdt informace<\/a><\/noindex> p\u0159ed ve\u0159ejnost\u00ed, nem\u016f\u017ee neovlivnit image posledn\u00edho.<\/p>\n

Tyto zpr\u00e1vy p\u0159ich\u00e1zej\u00ed v obzvl\u00e1\u0161\u0165 nep\u0159\u00edzniv\u00e9 dob\u011b pro Intel: AMD brzy uvede na trh rodinu modern\u00edch 7nm procesor\u016f s architekturou Zen 2, kter\u00e9 jsou ur\u010deny pro desktopov\u00e9 a serverov\u00e9 \u00fakoly. Mezit\u00edm Intel st\u00e1le vyu\u017e\u00edv\u00e1 velmi starou (z pohledu v\u00fdvoje v\u00fdrobn\u00edho procesu) 14nm technologii a nem\u016f\u017ee spustit hromadnou v\u00fdrobu 10nm \u010dip\u016f. To v\u0161e hraje ve prosp\u011bch AMD, kter\u00e1 tak pravd\u011bpodobn\u011b nad\u00e1le zv\u00fd\u0161\u00ed sv\u016fj pod\u00edl na trhu.<\/p>\n

\"AMD<\/p>\n

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Zdroj: 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 p\u0159ed spu\u0161t\u011bn\u00edm Zen 2 prohl\u00e1sila, \u017ee jej\u00ed procesory jsou bezpe\u010dn\u00e9 a odoln\u00e9 v\u016f\u010di nov\u00fdm \u00fatok\u016fm | ProHoster","description":"U\u017e v\u00edce ne\u017e rok po odhalen\u00ed zranitelnost\u00ed Spectre a Meltdown trh s procesory proch\u00e1z\u00ed turbulencemi v d\u016fsledku objevov\u00e1n\u00ed st\u00e1le nov\u00fdch a nov\u00fdch zranitelnost\u00ed spojen\u00fdch se spekulativn\u00edm v\u00fdpo\u010dtem.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/amd-nakanune-zapuska-zen-2-zayavila-o-bezopasnosti-i-neuyazvimosti-svoih-tsp-k-novym-atakam","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","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\udd47AMD \u043d\u0430\u043a\u0430\u043d\u0443\u043d\u0435 \u0437\u0430\u043f\u0443\u0441\u043a\u0430 Zen 2 \u0437\u0430\u044f\u0432\u0438\u043b\u0430 \u043e 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