{"id":1176,"date":"2018-01-04T17:23:22","date_gmt":"2018-01-04T17:23:22","guid":{"rendered":"https:\/\/www.dsconsultant.net\/blog\/?p=1176"},"modified":"2018-01-04T17:23:22","modified_gmt":"2018-01-04T17:23:22","slug":"enorme-faille-de-securite-au-sein-des-puces-intel-le-monde-informatique","status":"publish","type":"post","link":"https:\/\/dsconsultant.net\/blog\/pcwindows\/enorme-faille-de-securite-au-sein-des-puces-intel-le-monde-informatique","title":{"rendered":"Enorme faille de s\u00e9curit\u00e9 au sein des puces Intel &#8211; Le Monde Informatique"},"content":{"rendered":"<p>Une erreur de conception dans la gestion de la m\u00e9moire prot\u00e9g\u00e9e des puces Intel vient d&rsquo;\u00eatre d\u00e9voil\u00e9e alors que les \u00e9diteurs de syst\u00e8mes d&rsquo;exploitation et d&rsquo;hyperviseurs travaillent depuis plusieurs mois sur les moyens de combler cette vuln\u00e9rabilit\u00e9.<\/p>\n<p>Source\u00a0: <em><a href=\"https:\/\/www.lemondeinformatique.fr\/actualites\/lire-enorme-faille-de-securite-au-sein-des-puces-intel-70419.html\">Enorme faille de s\u00e9curit\u00e9 au sein des puces Intel &#8211; Le Monde Informatique<\/a><\/em><\/p>\n<p>Selon\u00a0<a href=\"https:\/\/security.googleblog.com\/2018\/01\/todays-cpu-vulnerability-what-you-need.html\" target=\"_blank\" rel=\"noopener\">une information publi\u00e9e \u00e0 l&rsquo;origine par l&rsquo;\u00e9quipe Project zero de Google\u00a0<\/a>et\u00a0<a href=\"https:\/\/www.theregister.co.uk\/2018\/01\/02\/intel_cpu_design_flaw\" target=\"_blank\" rel=\"noopener\">relay\u00e9e depuis par notre confr\u00e8re The Register<\/a>, un d\u00e9faut de conception touche les processeurs fabriqu\u00e9s par\u00a0<a href=\"https:\/\/www.lemondeinformatique.fr\/toute-l-actualite-marque-sur-intel-42.html\">Intel<\/a>\u00a0depuis 10 ans&#8230;<!--more-->Il s\u2019agit plus pr\u00e9cis\u00e9ment d\u2019une erreur de design au sein de la m\u00e9moire prot\u00e9g\u00e9e du noyau. Des programmes malveillants pourraient donc acc\u00e9der \u00e0 des informations dans la m\u00e9moire tampon du processeur. Il n\u2019est pas possible de corriger ce d\u00e9faut \u00e0 l\u2019aide d\u2019une simple mise \u00e0 jour du microcode. Il est n\u00e9cessaire de revoir physiquement les puces pour ajouter une fonction Kernel Page Table Isolation (KPTI).<\/p>\n<p>Conscient de ce d\u00e9faut fondamental qui touche \u00e9norm\u00e9ment de processeurs maison, Intel a travaill\u00e9 avec Microsoft et la Fondation Linux pour corriger tout d\u2019abord ce probl\u00e8me dans les noyaux de Windows et Linux. Les d\u00e9veloppeurs se sont efforc\u00e9s de refondre le syst\u00e8me de m\u00e9moire virtuelle du noyau Linux open-source. De son cot\u00e9, Microsoft proposera un patch mardi prochain. Les b\u00eatas testeurs inscrits au programme Windows Insider b\u00e9n\u00e9ficient d\u00e9j\u00e0 de cette mise \u00e0 jour depuis novembre dernier. \u00a0Un impact est toutefois attendu sur les performances des puces concern\u00e9es&#8230;<\/p>\n<p>&#8230;les puces d\u2019AMD ne sont pas concern\u00e9es pas ce d\u00e9faut puisqu\u2019elles int\u00e8grent d\u00e9j\u00e0 dans leur micro-architecture une isolation du kernel (KPTI). Les processeurs ARM-64 sont par contre victimes d&rsquo;une vuln\u00e9rabilit\u00e9 similaire.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une erreur de conception dans la gestion de la m\u00e9moire prot\u00e9g\u00e9e des puces Intel vient d&rsquo;\u00eatre d\u00e9voil\u00e9e alors que les \u00e9diteurs de syst\u00e8mes d&rsquo;exploitation et d&rsquo;hyperviseurs travaillent depuis plusieurs mois sur les moyens de combler cette vuln\u00e9rabilit\u00e9. Source\u00a0: Enorme faille de s\u00e9curit\u00e9 au sein des puces Intel &#8211; Le Monde Informatique Selon\u00a0une information publi\u00e9e \u00e0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1178,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[4],"tags":[73,71,74,72],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Enorme faille de s\u00e9curit\u00e9 au sein des puces Intel - Le Monde Informatique - Mes Notes, Astuces &amp; Conseils informatiques<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dsconsultant.net\/blog\/pcwindows\/enorme-faille-de-securite-au-sein-des-puces-intel-le-monde-informatique\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Enorme faille de s\u00e9curit\u00e9 au sein des puces Intel - Le Monde Informatique - Mes Notes, Astuces &amp; Conseils informatiques\" \/>\n<meta property=\"og:description\" content=\"Une erreur de conception dans la gestion de la m\u00e9moire prot\u00e9g\u00e9e des puces Intel vient d&rsquo;\u00eatre d\u00e9voil\u00e9e alors que les \u00e9diteurs de syst\u00e8mes d&rsquo;exploitation et d&rsquo;hyperviseurs travaillent depuis plusieurs mois sur les moyens de combler cette vuln\u00e9rabilit\u00e9. 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