{"id":2378,"date":"2018-01-11T14:55:14","date_gmt":"2018-01-11T13:55:14","guid":{"rendered":"https:\/\/pcll.ac-dijon.fr\/eole\/?p=2378"},"modified":"2018-01-12T12:10:04","modified_gmt":"2018-01-12T11:10:04","slug":"eole-et-les-failles-de-securite-meltdown-spectre","status":"publish","type":"post","link":"https:\/\/pcll.ac-dijon.fr\/eole\/eole-et-les-failles-de-securite-meltdown-spectre\/","title":{"rendered":"EOLE et les failles de s\u00e9curit\u00e9 Meltdown &amp; Spectre"},"content":{"rendered":"<p><strong>Mise \u00e0 jour disponible pour 2.5 et 2.6<\/strong><\/p>\n<p><!--more--><\/p>\n<p>En ce d\u00e9but d&rsquo;ann\u00e9e 2018, deux s\u00e9rieuses failles de s\u00e9curit\u00e9 ont \u00e9t\u00e9 d\u00e9voil\u00e9es et, pour une fois, se trouvent au niveau mat\u00e9riel sur quasiment tous les processeurs.\u00a0 Les ordinateurs de ces dix derni\u00e8res ann\u00e9es sont impact\u00e9s.<\/p>\n<p>Tous les syst\u00e8mes d&rsquo;exploitation sont concern\u00e9s. Une r\u00e9solution logiciel est en cours mais les experts laissent entendre que seul le changement de mat\u00e9riel permettra \u00e0 terme de r\u00e9ellement se d\u00e9barrasser des probl\u00e8mes.<\/p>\n<p>Pour en savoir plus sur les failles identifi\u00e9es :<\/p>\n<ul>\n<li><a class=\"external\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Meltdown_(vuln%C3%A9rabilit%C3%A9)\" target=\"_blank\" rel=\"noopener\">Meltdown<\/a> : <a class=\"external\" href=\"https:\/\/people.canonical.com\/~ubuntu-security\/cve\/2017\/CVE-2017-5754.html\" target=\"_blank\" rel=\"noopener\">CVE-2017-5754<\/a><\/li>\n<li><a class=\"external\" href=\"https:\/\/fr.wikipedia.org\/wiki\/Spectre_(vuln%C3%A9rabilit%C3%A9)\" target=\"_blank\" rel=\"noopener\">Spectre<\/a> : <a class=\"external\" href=\"https:\/\/people.canonical.com\/~ubuntu-security\/cve\/2017\/CVE-2017-5753.html\" target=\"_blank\" rel=\"noopener\">CVE-2017-5753<\/a> et <a class=\"external\" href=\"https:\/\/people.canonical.com\/~ubuntu-security\/cve\/2017\/CVE-2017-5715.html\" target=\"_blank\" rel=\"noopener\">CVE-2017-5715<\/a><\/li>\n<\/ul>\n<h2>Correction du noyau Linux sur Ubuntu<\/h2>\n<p>Un travail d&rsquo;int\u00e9gration des correctifs est en cours sur les distributions Linux.<\/p>\n<p>Ubuntu s&rsquo;est engag\u00e9 \u00e0 publier les correctifs le 10\/01\/2018 sur les noyaux support\u00e9s par la distribution.<\/p>\n<p>Mercredi, dans la nuit, la publication du noyau linux-image-4.4.0-108-generic corrigeait le probl\u00e8me sur la plupart des serveurs. Pour quelques mat\u00e9riels sp\u00e9cifiques, ce noyau n&rsquo;a pas d\u00e9marr\u00e9. Ubuntu a tr\u00e8s rapidement corrig\u00e9 et le m\u00eame jour \u00e0 midi, une nouvelle version du noyau (linux-image-4.4.0-109-generic) a remplac\u00e9 le pr\u00e9c\u00e9dent.<\/p>\n<p>Voir l&rsquo;\u00e9volution du traitement par l&rsquo;\u00e9quipe s\u00e9curit\u00e9 chez Ubuntu : <a href=\"https:\/\/wiki.ubuntu.com\/SecurityTeam\/KnowledgeBase\/SpectreAndMeltdown\" target=\"_blank\" rel=\"noopener\">https:\/\/wiki.ubuntu.com\/SecurityTeam\/KnowledgeBase\/SpectreAndMeltdown<\/a><\/p>\n<h2>EOLE version 2.5 et 2.6<\/h2>\n<p><strong>La mise \u00e0 jour du noyau 4.4.0-109 est disponible. Nous recommandons d&rsquo;appliquer cette mise \u00e0 jour.<\/strong><\/p>\n<p>Remarques :<\/p>\n<p><em>Lors de cette courte p\u00e9riode (entre mercredi\u00a0 dans la nuit\u00a0 et midi), quelques serveurs EOLE ont install\u00e9 le noyau\u00a04.4.0-108. Certains ont pu avoir un probl\u00e8me au red\u00e9marrage. Ceux qui ont obtenu directement le noyau 4.4.0-109 n&rsquo;ont pas de probl\u00e8me<\/em><\/p>\n<p><em>Pour les serveurs qui ont eu des probl\u00e8mes de red\u00e9marrage.<\/em><\/p>\n<p><em>Depuis la console,d\u00e9marrer le serveur sur le noyau pr\u00e9c\u00e9dent et s\u00e9lectionner un noyau plus ancien dans le menu de d\u00e9marrage de Grub,\u00a0 effectuer la mise \u00e0 jour, red\u00e9marrer le serveur<\/em><\/p>\n<p><em>Il est conseill\u00e9 de d\u00e9sinstaller le noyau posant probl\u00e8me pour qu&rsquo;il ne soit plus disponible dans la liste propos\u00e9e par Grub (apt-eole remove linux-image-4.4.0-108-generic)<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mise \u00e0 jour disponible pour 2.5 et 2.6<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[29,3],"tags":[71,67,70,69,68],"class_list":["post-2378","post","type-post","status-publish","format-standard","hentry","category-annonce","category-technique","tag-kernel","tag-meltdown","tag-noyau","tag-securite","tag-spectre"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>EOLE et les failles de s\u00e9curit\u00e9 Meltdown &amp; Spectre - EOLE<\/title>\n<meta name=\"description\" content=\"Version 2.5 et 2.6: La mise \u00e0 jour du noyau 4.4.0-109 est disponible. 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