{"id":105612,"date":"2022-11-17T21:36:40","date_gmt":"2022-11-17T19:36:40","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-realizaczii-protokola-mctp-dlya-linux-pozvolyayushhaya-povysit-svoi-privilegii"},"modified":"2022-11-17T21:36:40","modified_gmt":"2022-11-17T19:36:40","slug":"uyazvimost-v-realizaczii-protokola-mctp-dlya-linux-pozvolyayushhaya-povysit-svoi-privilegii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/uyazvimost-v-realizaczii-protokola-mctp-dlya-linux-pozvolyayushhaya-povysit-svoi-privilegii","title":{"rendered":"Vuln\u00e9rabilit\u00e9 dans l'impl\u00e9mentation du protocole MCTP pour Linux, permettant d'augmenter ses privil\u00e8ges","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 identifi\u00e9e dans le noyau Linux (CVE-2022-3977), qui pourrait potentiellement \u00eatre exploit\u00e9e par un utilisateur local pour \u00e9lever ses privil\u00e8ges dans le syst\u00e8me. La vuln\u00e9rabilit\u00e9 se manifeste \u00e0 partir du noyau 5.18 et a \u00e9t\u00e9 corrig\u00e9e dans la branche 6.1. On peut suivre l'apparition du correctif dans les distributions sur les pages : Debian, Ubuntu, Gentoo, RHEL, SUSE, Arch.          <\/p>\n<p>La vuln\u00e9rabilit\u00e9 est pr\u00e9sente dans l'impl\u00e9mentation du protocole MCTP (Management Component Transport Protocol), utilis\u00e9 pour l'interaction entre les contr\u00f4leurs de gestion et les appareils qui y sont associ\u00e9s. Elle est caus\u00e9e par une condition de course dans la fonction mctp_sk_unhash(), ce qui entra\u00eene un acc\u00e8s \u00e0 une zone m\u00e9moire d\u00e9j\u00e0 lib\u00e9r\u00e9e (use-after-free) lors de l'envoi d'une requ\u00eate ioctl DROPTAG alors que le socket est en cours de fermeture.<br \/>\n<br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58136\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u044f\u0434\u0440\u0435 Linux \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-3977), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u044b\u043c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u043c \u0434\u043b\u044f \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0438\u0445 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u044f\u0434\u0440\u0430 5.18 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u0435\u0442\u043a\u0435 6.1. \u041f\u043e\u044f\u0432\u043b\u0435\u043d\u0438\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430\u0445 \u043c\u043e\u0436\u043d\u043e \u043f\u0440\u043e\u0441\u043b\u0435\u0434\u0438\u0442\u044c \u043d\u0430 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\u0445: Debian, Ubuntu, Gentoo, RHEL, SUSE, Arch. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 MCTP (Management Component Transport Protocol), \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f [&hellip;]<\/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":[702],"tags":[],"class_list":["post-105612","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u044f\u0434\u0440\u0435 Linux 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