{"id":73,"date":"2018-01-07T00:49:00","date_gmt":"2018-01-06T15:49:00","guid":{"rendered":"https:\/\/lab4ict.com\/?p=73"},"modified":"2024-01-31T13:14:41","modified_gmt":"2024-01-31T04:14:41","slug":"%e8%84%86%e5%bc%b1%e6%80%a7%e6%83%85%e5%a0%b1%ef%bc%9a%e3%80%8c%e6%8a%95%e6%a9%9f%e7%9a%84%e5%ae%9f%e8%a1%8c%e6%a9%9f%e8%83%bd%e3%82%92%e6%8c%81%e3%81%a4-cpu-%e3%81%ab%e5%af%be%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/lab4ict.com\/blog\/archives\/73","title":{"rendered":"\u300c\u6295\u6a5f\u7684\u5b9f\u884c\u6a5f\u80fd\u3092\u6301\u3064 CPU \u306b\u5bfe\u3059\u308b\u30b5\u30a4\u30c9\u30c1\u30e3\u30cd\u30eb\u653b\u6483\u300d\u306b\u3064\u3044\u3066"},"content":{"rendered":"<p>2018\u5e741\u67083\u65e5\u3001\u5168\u4e16\u754c\u7684\u306a\u30cb\u30e5\u30fc\u30b9\u3068\u306a\u308b\u8106\u5f31\u6027\u60c5\u5831\u304cGoogle\u3088\u308a\u300c<a href=\"https:\/\/security.googleblog.com\/2018\/01\/todays-cpu-vulnerability-what-you-need.html\" target=\"_blank\" rel=\"noopener\">Today's CPU vulnerability: what you need to know<\/a>\u300d\u3068\u3057\u3066\u516c\u958b\u3055\u308c\u305f\u3002JVN\u3067\u306f\u3001\u300c<a href=\"https:\/\/jvn.jp\/vu\/JVNVU93823979\/index.html\" target=\"_blank\" rel=\"noopener\">\u6295\u6a5f\u7684\u5b9f\u884c\u6a5f\u80fd\u3092\u6301\u3064 CPU \u306b\u5bfe\u3059\u308b\u30b5\u30a4\u30c9\u30c1\u30e3\u30cd\u30eb\u653b\u6483<\/a>\u300d\u3068\u984c\u3055\u308c\u3066\u3044\u308b\u3002<br \/>\n<!--more--><\/p>\n<h2>\u6982\u8981<\/h2>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001CPU\u306e\u300c\u6295\u6a5f\u7684\u5b9f\u884c\u6a5f\u80fd\u300d\u306e\u554f\u984c\u3067\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\uff08CPU\uff09\u306e\u8106\u5f31\u6027\u3067\u3042\u308a\u3001\u5bfe\u5fdc\u7b56\u306fOS\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4fee\u6b63\u306b\u3088\u308b\u3082\u306e\u3068\u306a\u3063\u3066\u3044\u308b\u3002\u8106\u5f31\u6027\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u300cMeltdown\u300d\u3068\u300cSpectre\u300d\u3067\u3001\u8a73\u7d30\u60c5\u5831\u306f\u4ee5\u4e0b\u306e\u30ea\u30f3\u30af\u5148\u3068\u306a\u3063\u3066\u3044\u308b\u3002<\/p>\n<ul>\n<li><a href=\"https:\/\/googleprojectzero.blogspot.jp\/2018\/01\/reading-privileged-memory-with-side.html\" target=\"_blank\" rel=\"noopener\">Google Project Zero \u306e\u30d6\u30ed\u30b0\u8a18\u4e8b(\"Reading privileged memory with a side-channel\")<\/a><\/li>\n<li><a href=\"https:\/\/meltdownattack.com\/\" target=\"_blank\" rel=\"noopener\">Graz University of Technology (TU Graz) \u306e\u7814\u7a76\u8005\u306b\u3088\u308b\u60c5\u5831(\"Meltdown and Spectre\")<\/a><\/li>\n<\/ul>\n<h2>\u5f71\u97ff\u7bc4\u56f2<\/h2>\n<p>\u5f71\u97ff\u7bc4\u56f2\u306f\u3001\u30a4\u30f3\u30c6\u30eb\u88fd\u306eCPU\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u3063\u3066\u3044\u308b\u304c\u3001\u57fa\u672c\u7684\u306b\u4ed6\u306eCPU\u3082\u6295\u6a5f\u7684\u5b9f\u884c\u6a5f\u80fd\u3092\u6301\u3063\u3066\u3044\u308b\u306f\u305a\u306a\u306e\u3067\u3001\u5404CPU\u30d9\u30f3\u30c0\u30fc\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n<p>\u30ea\u30b9\u30af\u306f\u3001\u60c5\u5831\u304c\u76d7\u307f\u898b\u3089\u308c\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u306e\u3053\u3068\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u76d7\u307f\u898b\u308b\u30c7\u30e2\u304c\u7d39\u4ecb\u3055\u308c\u3066\u304a\u308a\u3001\u653e\u7f6e\u306f\u3067\u304d\u306a\u3055\u305d\u3046\u306a\u611f\u3058\u3067\u3042\u308b\u3002<\/p>\n<p>CVSS v3\u3067\u306e\u8a55\u4fa1\u5024\u306f\u3001\u5f53\u521d\u306f2.5\u306e\u6ce8\u610f\uff082018\/1\/5\u6642\u70b9\uff09\u3068\u9ad8\u304f\u306a\u304b\u3063\u305f\u304c4.7\uff082018\/1\/13\u6642\u70b9\uff09\u306b\u4e0a\u6607\u3057\u3001\u5bfe\u8c61\u3068\u306a\u308b\u30b7\u30b9\u30c6\u30e0\u306b\u5bfe\u3059\u308b\u30d1\u30c3\u30c1\u9069\u7528\u306f\u907f\u3051\u3089\u308c\u306a\u3055\u305d\u3046\u3067\u3042\u308b\u3002<\/p>\n<h2>\u4e00\u6b21\u5bfe\u5fdc<\/h2>\n<p>\u3053\u306e\u8106\u5f31\u6027\u306f\u3001\u4e3b\u3068\u3057\u3066\u3053\u306e\u8106\u5f31\u6027\u3092\u72d9\u3063\u305f\u30de\u30eb\u30a6\u30a7\u30a2\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u305f\u5834\u5408\u306b\u3001\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3002\u4e00\u6b21\u5bfe\u5fdc\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306e\u57fa\u672c\u3068\u3082\u8a00\u3048\u308b\u5bfe\u5fdc\u3092\u3068\u308a\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3042\u308b\u3002<\/p>\n<ul>\n<li>\u30b5\u30fc\u30d0\u3084\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u30d5\u30a1\u30a4\u30a2\u30fc\u30a6\u30a9\u30fc\u30eb\u306e\u5185\u5074\u306b\u96a0\u3059\u3002<\/li>\n<li>\u4e0d\u5fc5\u8981\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u306a\u3044\u3002<\/li>\n<\/ul>\n<h2>\u5f53\u9762\u306e\u5bfe\u5fdc<\/h2>\n<p>\u672c\u8106\u5f31\u6027\u306b\u5bfe\u3059\u308b\u5bfe\u5fdc\u306f\u5f53\u9762\u306f\u3001OS\u304a\u3088\u3073\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30c3\u30c1\u9069\u7528\u306b\u306a\u308a\u305d\u3046\u3067\u3042\u308b\u304c\u3001\u5404CPU\u30d9\u30f3\u30c0\u30fc\u3001OS\u30d9\u30f3\u30c0\u30fc\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30fb\u30d9\u30f3\u30c0\u30fc\u306e\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u6839\u672c\u7684\u306a\u5bfe\u5fdc\u3068\u3057\u3066\u306f\u3001CPU\u306e\u6295\u6a5f\u7684\u5b9f\u884c\u306b\u95a2\u3059\u308b\u898b\u76f4\u3057\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u4e0d\u5177\u5408\u306e\u5185\u5bb9\u304c\u3001CPU\u51e6\u7406\u306e\u9ad8\u901f\u5316\u306b\u95a2\u3059\u308b\u90e8\u5206\u306e\u305f\u3081\u3001\u30d1\u30c3\u30c1\u9069\u7528\u306e\u969b\u306b\u306f\u3001\u6a5f\u80fd\u9762\u3060\u3051\u3067\u306a\u304f\u6027\u80fd\u306e\u4f4e\u4e0b\u304c\u767a\u751f\u3057\u306a\u3044\u304b\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u305f\u3044\u3002<\/p>\n<h2>\u5bfe\u7b56\u306e\u6574\u7406<\/h2>\n<p>\u6839\u672c\u5bfe\u7b56\u306b\u5411\u3051\u3066\u306e\u5bfe\u5fdc\u3092\u6574\u7406\u3057\u3066\u304a\u304f\u3002<\/p>\n<ul>\n<li>CPU\u306eMeltdown\u3001Spectre\u5bfe\u5fdc\uff08\u6839\u672c\u5bfe\u7b56\uff09<\/li>\n<li>CPU\u3078\u306e\u30d1\u30c3\u30c1\u9069\u7528\uff08\u7de9\u548c\u7b56\uff09\u203bCPU\u306b\u5bfe\u3059\u308b\u30de\u30a4\u30af\u30ed\u30b3\u30fc\u30c9\u3067\u5bfe\u5fdc<\/li>\n<li>BIOS\u7b49\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u306eMeltdown\u3001Spectre\u5bfe\u5fdc\uff08\u7de9\u548c\u7b56\uff09<\/li>\n<li>OS\u306eMeltdown\u3001Specter\u5bfe\u5fdc\uff08\u7de9\u548c\u7b56\uff09<\/li>\n<li>OS\u4ee5\u5916\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306b\u3088\u308bMeltdown\u3001Spectre\u5bfe\u5fdc\uff08\u7de9\u548c\u7b56\uff09\u203b\u7279\u306bJavascript\u304c\u52d5\u4f5c\u3059\u308b\u30d6\u30e9\u30a6\u30b6<\/li>\n<li>\u91cd\u8981\u306a\u30c7\u30fc\u30bf\u3092\u4fdd\u7ba1\u3059\u308b\u30b5\u30fc\u30d0\u3084\u30d1\u30bd\u30b3\u30f3\u3092\u30de\u30eb\u30a6\u30a7\u30a2\u304b\u3089\u53ef\u80fd\u306a\u9650\u308a\u9694\u96e2\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\uff08\u7de9\u548c\u7b56\uff09<\/li>\n<\/ul>\n<h2>\u5bfe\u7b56\u306b\u304a\u3051\u308b\u8ab2\u984c<\/h2>\n<p>\u5bfe\u7b56\u306b\u304a\u3051\u308b\u8ab2\u984c\u3092\u3092\u6574\u7406\u3059\u308b\u3002<\/p>\n<h3>\u7dca\u6025\u6027\u306e\u5224\u65ad\u3068\u30d1\u30c3\u30c1\u9069\u7528\u306e\u30c6\u30b9\u30c8\u5de5\u6570<\/h3>\n<p>\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306b\u5f71\u97ff\u3092\u53ca\u307c\u3059\u3088\u3046\u306a\u5bfe\u5fdc\u3092\u4f34\u3046\u8106\u5f31\u6027\u306b\u5bfe\u3057\u3066\u306f\u3001\u5bfe\u5fdc\u306e\u7dca\u6025\u6027\u306b\u3064\u3044\u3066\u306e\u5224\u65ad\u529b\u3068\u3001\u30d1\u30c3\u30c1\u9069\u7528\u306e\u624b\u9806\u3084\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u306e\u78ba\u7acb\u306a\u3069\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u554f\u984c\u306b\u5bfe\u3059\u308b\u5bfe\u5fdc\u529b\u306e\u5f37\u5316\u304c\u5927\u5207\u3067\u3042\u308b\u3002<\/p>\n<h3>\u30d1\u30c3\u30c1\u9069\u7528\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff<\/h3>\n<p>\u30d1\u30c3\u30c1\u9069\u7528\u306b\u4f34\u3046\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c0\u30a6\u30f3\u304c\u6307\u6458\u3055\u308c\u3066\u3044\u308b\u3002\u6839\u672c\u7684\u306a\u5bfe\u5fdc\u306b\u306f\u3001CPU\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u3088\u308b\u5bfe\u5fdc\u304c\u5fc5\u8981\u306a\u3088\u3046\u3067\u3042\u308b\u3002<\/p>\n<h2>\u7dcf\u62ec<\/h2>\n<p>\u672c\u8106\u5f31\u6027\u3067\u5bfe\u5fdc\u304c\u6025\u304c\u308c\u3066\u3044\u308b\u306e\u306f\u3001\u591a\u6570\u306e\u30e6\u30fc\u30b6\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u7a3c\u50cd\u3059\u308b\u30af\u30e9\u30a6\u30c9\u74b0\u5883\u3067\u3042\u308b\u3002\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u3088\u308a\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u76d7\u307e\u308c\u308b\u306a\u3069\u5168\u304f\u5f71\u97ff\u304c\u306a\u3044\u3068\u306f\u8a00\u3044\u5207\u308c\u306a\u3044\u304c\u3001\u500b\u4eba\u7528\u306e\u30d1\u30bd\u30b3\u30f3\u306b\u3064\u3044\u3066\u306f\u7dca\u6025\u5ea6\u306f\u4f4e\u304f\u3001\u8cfc\u5165\u6e08\u307f\u306e\u5834\u5408\u306f\u5bb9\u6613\u306a\u653b\u6483\u65b9\u6cd5\u304c\u767a\u898b\u3055\u308c\u305f\u5834\u5408\u7b49\u3067\u554f\u984c\u306a\u3044\u3068\u601d\u308f\u308c\u308b\u3002\u30d1\u30bd\u30b3\u30f3\u3092\u3053\u308c\u304b\u3089\u8cfc\u5165\u3059\u308b\u5834\u5408\u306f\u3001\u30d1\u30c3\u30c1\u304c\u63d0\u4f9b\u3055\u308c\u3001\u304b\u3064\u30d1\u30c3\u30c1\u9069\u7528\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4f4e\u4e0b\u304c\u5c11\u306a\u3044\u3068\u3044\u308f\u308c\u308bCPU\u3001Intel\u3067\u3042\u308c\u30706\u4e16\u4ee3\uff08Skylake\uff09\u4ee5\u964d\u306b\u3057\u305f\u307b\u3046\u304c\u3088\u3044\u3002<\/p>\n<h2>\u8ffd\u88dc<\/h2>\n<p>\u672c\u4ef6\u4ee5\u964d\u3001\u672c\u4ef6\u306b\u6d3e\u751f\u3057\u305f\u8106\u5f31\u6027\u304c\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u3002\u6d3e\u751f\u3057\u305f\u554f\u984c\u306e\u60c5\u5831\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u53c2\u8003\u306b\u30ea\u30f3\u30af\u3092\u63b2\u8f09\u3057\u3066\u3044\u304f\u3002<\/p>\n<h2>\u53c2\u8003<\/h2>\n<h3>\u767a\u898b\u8005\u306b\u3088\u308b\u60c5\u5831<\/h3>\n<ul>\n<li><a href=\"https:\/\/googleprojectzero.blogspot.jp\/2018\/01\/reading-privileged-memory-with-side.html\" target=\"_blank\" rel=\"noopener\">Google Project Zero \u306e\u30d6\u30ed\u30b0\u8a18\u4e8b(\"Reading privileged memory with a side-channel\")<\/a><\/li>\n<li><a href=\"https:\/\/meltdownattack.com\/\" target=\"_blank\" rel=\"noopener\">Graz University of Technology (TU Graz) \u306e\u7814\u7a76\u8005\u306b\u3088\u308b\u60c5\u5831(\"Meltdown and Spectre\")<\/a><\/li>\n<\/ul>\n<h3>JVN\u60c5\u5831<\/h3>\n<ul>\n<li><a href=\"https:\/\/jvn.jp\/vu\/JVNVU93823979\/\" target=\"_blank\" rel=\"noopener\">JVNVU#93823979\u300c\u6295\u6a5f\u7684\u5b9f\u884c\u6a5f\u80fd\u3092\u6301\u3064 CPU \u306b\u5bfe\u3059\u308b\u30b5\u30a4\u30c9\u30c1\u30e3\u30cd\u30eb\u653b\u6483\u300d\uff082018\/01\/04\uff09<\/a><\/li>\n<li><a href=\"https:\/\/jvn.jp\/vu\/JVNVU97971879\/\" target=\"_blank\" rel=\"noopener\">JVNVU#97971879\u300c\u6295\u6a5f\u7684\u5b9f\u884c\u6a5f\u80fd\u3092\u6301\u3064 CPU \u306b\u5bfe\u3059\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u30b5\u30a4\u30c9\u30c1\u30e3\u30cd\u30eb\u653b\u6483\u300d\uff082018\/05\/22\uff09<\/a><\/li>\n<li><a href=\"https:\/\/jvn.jp\/vu\/JVNVU97646030\/\" target=\"_blank\" rel=\"noopener\">JVNVU#97646030\u300cIntel \u88fd CPU \u306e\u6295\u6a5f\u7684\u5b9f\u884c\u6a5f\u80fd\u306b\u5bfe\u3059\u308b\u30b5\u30a4\u30c9\u30c1\u30e3\u30cd\u30eb\u653b\u6483 (L1TF, L1 Terminal Fault)\u300d\uff082018\/08\/17\uff09<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>2018\u5e741\u67083\u65e5\u3001\u5168\u4e16\u754c\u7684\u306a\u30cb\u30e5\u30fc\u30b9\u3068\u306a\u308b\u8106\u5f31\u6027\u60c5\u5831\u304cGoogle\u3088\u308a\u300cToday's CPU vulnerability: what you need to know\u300d\u3068\u3057\u3066\u516c\u958b\u3055\u308c\u305f\u3002JVN\u3067\u306f\u3001\u300c\u6295\u6a5f\u7684\u5b9f\u884c\u6a5f\u80fd\u3092\u6301\u3064 CPU \u306b\u5bfe\u3059\u2026<\/p>\n","protected":false},"author":1,"featured_media":400,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[6,38,39,4,44,5],"class_list":["post-73","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-topics","tag-cpu","tag-meltdown","tag-spectre","tag-4","tag-44","tag-5"],"_links":{"self":[{"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/posts\/73","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/comments?post=73"}],"version-history":[{"count":1,"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/posts\/73\/revisions"}],"predecessor-version":[{"id":9043,"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/posts\/73\/revisions\/9043"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/media\/400"}],"wp:attachment":[{"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/media?parent=73"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/categories?post=73"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lab4ict.com\/blog\/wp-json\/wp\/v2\/tags?post=73"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}