{"id":30014,"date":"2019-10-31T21:33:12","date_gmt":"2019-10-31T18:33:12","guid":{"rendered":"https:\/\/prohoster.info\/blog\/amd-podtverdila-chto-eyo-protsessory-ne-podverzheny-uyazvimosti-spoiler\/"},"modified":"2019-10-31T21:33:12","modified_gmt":"2019-10-31T18:33:12","slug":"amd-podtverdila-chto-eyo-protsessory-ne-podverzheny-uyazvimosti-spoiler","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/amd-podtverdila-chto-eyo-protsessory-ne-podverzheny-uyazvimosti-spoiler","title":{"rendered":"AMD har bekr\u00e6ftet, at deres processorer ikke er s\u00e5rbare over for Spoiler-s\u00e5rbarheden","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Tidligere p\u00e5 m\u00e5neden blev det kendt, at der var opdaget en ny kritisk s\u00e5rbarhed i Intel-processorer kaldet \"Spoiler\". De eksperter, der fremh\u00e6vede problemet, rapporterede, at AMD- og ARM-processorer ikke er modtagelige for det. Nu har AMD bekr\u00e6ftet, at p\u00e5 grund af arkitektoniske egenskaber udg\u00f8r Spoiler ikke en trussel mod deres processorer.<\/p>\n

\"AMD<\/p>\n

Som med Spectre- og Meltdown-s\u00e5rbarhederne ligger det nye problem i implementeringen af mekanismerne til spekulativ udf\u00f8relse af instruktioner i Intel-processorer. I AMD-chips er denne mekanisme implementeret anderledes, is\u00e6r med en anden tilgang til h\u00e5ndtering af operationer i hukommelsen og cachen. Mere pr\u00e6cist kan Spoiler f\u00e5 adgang til delvise oplysninger om adressen (over 11 bits af adressen) under indl\u00e6sningsoperationer. AMD-processorer bruger ikke delvise adresseoverlapninger over 11 bits adresse ved opl\u00f8sning af indl\u00e6sningskonflikter.<\/p>\n

\"AMD<\/p>\n

Det er vigtigt at bem\u00e6rke, at selvom Spoiler, ligesom Spectre, bygger p\u00e5 mekanismen til spekulativ udf\u00f8relse af instruktioner, vil det ikke v\u00e6re muligt at lukke den nye s\u00e5rbarhed med eksisterende \"patches\" mod tidligere exploits. Det vil sige, at de nuv\u00e6rende Intel-processorer har brug for nye opdateringer, som kan p\u00e5virke ydeevnen af chipsene igen. Fremadrettet vil Intel selvf\u00f8lgelig ogs\u00e5 skulle foretage \u00e6ndringer p\u00e5 arkitekturniveau. AMD beh\u00f8ver imidlertid ikke at foretage s\u00e5danne tiltag.<\/p>\n

\"AMD<\/p>\n

Til sidst skal det bem\u00e6rkes, at Spoiler ber\u00f8rer alle Intel-processorer, fra Core-chips af f\u00f8rste generation til de nuv\u00e6rende Coffee Lake Refresh, samt de endnu ikke udgivne Cascade Lake og Ice Lake. P\u00e5 trods af at Intel blev underrettet om problemet allerede i begyndelsen af december sidste \u00e5r, og at det nu er mere end ti dage siden, problemet blev offentligt kendt, har Intel endnu ikke pr\u00e6senteret mulige l\u00f8sninger eller afgivet en officiel erkl\u00e6ring om sagen.<\/p>\n

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

\u0420\u0430\u043d\u0435\u0435 \u0432 \u044d\u0442\u043e\u043c \u043c\u0435\u0441\u044f\u0446\u0435 \u0441\u0442\u0430\u043b\u043e \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e \u043e\u0431 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u0438 \u043d\u043e\u0432\u043e\u0439 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 Intel, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0430 \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u00abSpoiler\u00bb. \u0412\u044b\u044f\u0432\u0438\u0432\u0448\u0438\u0435 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0441\u0442\u044b \u0441\u043e\u043e\u0431\u0449\u0438\u043b\u0438, \u0447\u0442\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u044b AMD \u0438 ARM \u043d\u0435 \u0432\u043e\u0441\u043f\u0440\u0438\u0438\u043c\u0447\u0438\u0432\u044b \u043a \u043d\u0435\u0439. \u0422\u0435\u043f\u0435\u0440\u044c \u0436\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f AMD \u043f\u043e\u0434\u0442\u0432\u0435\u0440\u0434\u0438\u043b\u0430, \u0447\u0442\u043e \u0431\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u043d\u044b\u043c \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044f\u043c Spoiler \u043d\u0435 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0443\u0433\u0440\u043e\u0437\u044b \u0434\u043b\u044f \u0435\u0451 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432. \u041a\u0430\u043a \u0438 \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 Spectre \u0438 Meltdown, […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-30014","post","type-post","status-publish","format-standard","hentry"],"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 har bekr\u00e6ftet, at deres processorer ikke er s\u00e5rbare over for Spoiler-s\u00e5rbarheden | ProHoster","description":"Tidligere p\u00e5 m\u00e5neden blev det kendt, at der var opdaget en ny kritisk s\u00e5rbarhed i Intel-processorer kaldet 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