{"id":59428,"date":"2018-05-04T08:00:28","date_gmt":"2018-05-03T23:00:28","guid":{"rendered":"https:\/\/www.softantenna.com\/wp\/?p=59428"},"modified":"2018-05-04T08:00:28","modified_gmt":"2018-05-03T23:00:28","slug":"windows-10-meltdown-patch-fatal-flaw","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/windows-10-meltdown-patch-fatal-flaw\/","title":{"rendered":"Windows 10\u306eMeltdown\u30d1\u30c3\u30c1\u306b\u300c\u81f4\u547d\u7684\u306a\u6b20\u9665\u300d\u304c\u6307\u6458\u3055\u308c\u308b"},"content":{"rendered":"<p><img decoding=\"async\" style=\"display:block; margin-left:auto; margin-right:auto;\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2018\/05\/pexels-photo-895231.jpeg\" alt=\"Pexels photo 895231\" title=\"pexels-photo-895231.jpeg\" border=\"0\" width=\"1280\" height=\"853\" \/><\/p>\n<p>Microsoft\u304cWindows 10\u306eMeltdown\u5bfe\u7b56\u3068\u3057\u3066\u516c\u958b\u3057\u3066\u3044\u308b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u300c\u81f4\u547d\u7684\u306a\u6b20\u9665\u300d\u304c\u898b\u3064\u304b\u3063\u305f\u3068\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7814\u7a76\u5bb6Alex Ionescu\u6c0f\u304c\u6307\u6458\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u305f\u3060\u3057\u6700\u8fd1\u516c\u958b\u3055\u308c\u305fWindows 10 April 2018 Update\u3067\u306f\u3001\u3053\u306eMeltdown\u30d1\u30c3\u30c1\u306e\u6b20\u9665\u306f\u5bc6\u304b\u306b\u4fee\u6b63\u3055\u308c\u3066\u3044\u308b\u3068\u306e\u3053\u3068(<a href=\"https:\/\/news.softpedia.com\/news\/windows-10-meltdown-patch-said-to-come-with-fatal-flaw-520959.shtml\">Softpedia<\/a>)\u3002<\/p>\n<p>Microsoft\u306f2018\u5e74\u958b\u59cb\u65e9\u3005\u306b\u516c\u8868\u3055\u308c\u305fMeltdown\u3068Spectre\u8106\u5f31\u6027\u306b\u5bfe\u3057\u3001\u8907\u6570\u306e\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u306e\u4e2d\u3067Windows 10\u7528\u306eMeltdown\u30d1\u30c3\u30c1\u306b\u306f\u3001\u653b\u6483\u8005\u304c\u8ffd\u52a0\u306e\u4fdd\u8b77\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u30d0\u30b0\u304c\u5b58\u5728\u3057\u305f\u6a21\u69d8\u3067\u3059\u3002<\/p>\n<p>Alex Ionescu\u6c0f\u306f\u30c4\u30a4\u30c3\u30bf\u30fc\u30675\u67082\u65e5\u3001\u300cNtCallEnclave\u3092\u547c\u3073\u51fa\u3059\u3068\u3001\u5b8c\u5168\u306a\u30ab\u30fc\u30cd\u30eb\u30da\u30fc\u30b8\u30c6\u30fc\u30d6\u30eb\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u306b\u623b\u3063\u3066\u304f\u308b\u305f\u3081\u3001Windows 10\u7528\u306eMeltdown\u30d1\u30c3\u30c1\u306b\u306f\u81f4\u547d\u7684\u306a\u6b20\u9665\u304c\u3042\u308b\u3053\u3068\u304c\u5224\u660e\u3057\u307e\u3057\u305f\u300d\u3068\u3064\u3076\u3084\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<blockquote class=\"twitter-tweet\" data-lang=\"ja\">\n<p lang=\"en\" dir=\"ltr\">Welp, it turns out the <a href=\"https:\/\/twitter.com\/hashtag\/Meltdown?src=hash&amp;ref_src=twsrc%5Etfw\">#Meltdown<\/a> patches for Windows 10 had a fatal flaw: calling NtCallEnclave returned back to user space with the full kernel page table directory, completely undermining the mitigation. This is now patched on RS4 but not earlier builds -- no backport?? <a href=\"https:\/\/t.co\/VIit6hmYK0\">pic.twitter.com\/VIit6hmYK0<\/a><\/p>\n<p>&mdash; Alex Ionescu (@aionescu) <a href=\"https:\/\/twitter.com\/aionescu\/status\/991675604469669890?ref_src=twsrc%5Etfw\">2018\u5e745\u67082\u65e5<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>\u73fe\u5728\u3053\u306e\u30d0\u30b0\u304b\u3089\u7121\u7e01\u306aWindows 10\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306fWindows 10 April 2018 Update(Version 1803)\u3060\u3051\u3068\u3055\u308c\u3066\u304a\u308a\u3001Microsoft\u306f4\u670830\u65e5\u306e\u516c\u958b\u306b\u5148\u7acb\u3061\u3072\u305d\u304b\u306b\u6700\u65b0\u7248\u3060\u3051\u3067\u306f\u4e0d\u5177\u5408\u3092\u4fee\u6b63\u3057\u3066\u3044\u305f\u6a21\u69d8\u3067\u3059\u3002\u305f\u3060\u3057\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3082\u3053\u306e\u307e\u307e\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u306a\u304f\u3001Microsoft\u306f\u4ed6\u306e\u3059\u3079\u3066\u306eWindows 10\u7528\u306e\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u958b\u767a\u306b\u53d6\u308a\u304b\u304b\u3063\u3066\u3044\u308b\u3068\u4f1d\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u73fe\u5728\u3001Meltdown\u306e\u30d1\u30c3\u30c1\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\u65b9\u6cd5\u306e\u8a73\u7d30\u306f\u4e0d\u660e\u3067\u3001\u653b\u6483\u8005\u304c\u3053\u306e\u6b20\u9665\u3092\u60aa\u7528\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u306f\u5b9a\u304b\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002Microsoft\u304c\u305d\u308c\u307b\u3069\u4fee\u6b63\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u516c\u958b\u3092\u6025\u3044\u3067\u3044\u306a\u3044\u3053\u3068\u304b\u3089\u8003\u3048\u308b\u3068\u3001\u7dca\u6025\u6027\u304c\u9ad8\u3044\u4e0d\u5177\u5408\u3067\u306f\u306a\u3044\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u9806\u8abf\u306b\u3044\u3051\u3070\u6b21\u56de\u306e\u6708\u4f8b\u66f4\u65b0\u3067\u4fee\u6b63\u3055\u308c\u308b\u3068\u4e88\u60f3\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft\u304cWindows 10\u306eMeltdown\u5bfe\u7b56\u3068\u3057\u3066\u516c\u958b\u3057\u3066\u3044\u308b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u300c\u81f4\u547d\u7684\u306a\u6b20\u9665\u300d\u304c\u898b\u3064\u304b\u3063\u305f\u3068\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7814\u7a76\u5bb6Alex Ionescu\u6c0f\u304c\u6307\u6458\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u305f\u3060\u3057\u6700\u8fd1\u516c\u958b [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":59431,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[3],"tags":[3298,2701],"class_list":["post-59428","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows","tag-windows","tag-windows10"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/59428","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=59428"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/59428\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/59431"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=59428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=59428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=59428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}