{"id":182837,"date":"2026-08-11T04:54:59","date_gmt":"2026-08-11T02:54:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/sctphantom-uyazvimost-v-yadre-linux-predostavlyayushhaya-root-dostup-i-vyhod-iz-kontejnera"},"modified":"2026-08-11T04:54:59","modified_gmt":"2026-08-11T02:54:59","slug":"sctphantom-uyazvimost-v-yadre-linux-predostavlyayushhaya-root-dostup-i-vyhod-iz-kontejnera","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/sctphantom-uyazvimost-v-yadre-linux-predostavlyayushhaya-root-dostup-i-vyhod-iz-kontejnera","title":{"rendered":"SCTPhantom \u2014 vuln\u00e9rabilit\u00e9 dans le noyau Linux, donnant un acc\u00e8s root et une sortie du conteneur","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dans l'impl\u00e9mentation du protocole SCTP propos\u00e9e dans le noyau Linux, une vuln\u00e9rabilit\u00e9 (CVE-2026-64564) a \u00e9t\u00e9 identifi\u00e9e, permettant \u00e0 un utilisateur local d'obtenir des privil\u00e8ges root dans le syst\u00e8me. Parmi d'autres choses, cette vuln\u00e9rabilit\u00e9 permet d'acc\u00e9der au syst\u00e8me principal en lan\u00e7ant un exploit dans un conteneur isol\u00e9. Un prototype de l'exploit a \u00e9t\u00e9 pr\u00e9par\u00e9, dont le fonctionnement a \u00e9t\u00e9 d\u00e9montr\u00e9 sur les distributions Debian 13, Rocky Linux 9, RHEL 9 et Ubuntu 24.04 avec les noyaux 5.14, 6.6, 6.8 et 6.12. <\/p>\n

La vuln\u00e9rabilit\u00e9 est caus\u00e9e par un acc\u00e8s \u00e0 une m\u00e9moire d\u00e9j\u00e0 lib\u00e9r\u00e9e dans le code de reconfiguration dynamique des adresses SCTP (ASCONF). Le noyau met en cache un pointeur vers le transport (asconf->transport) sp\u00e9cifi\u00e9 dans le paquet, mais la m\u00e9moire associ\u00e9e \u00e0 ce pointeur peut \u00eatre lib\u00e9r\u00e9e, alors que le pointeur vers la m\u00e9moire d\u00e9j\u00e0 lib\u00e9r\u00e9e continue d'\u00eatre utilis\u00e9 lors du traitement d'autres commandes. L'attaque se fait en envoyant \u00e0 un socket local une s\u00e9quence sp\u00e9cifique de commandes ASCONF de reconfiguration d'adresse : d'abord un paquet DEL-IP pour supprimer le transport pour une IP sp\u00e9cifique, suivi d'un paquet DEL-IP avec un masque 0.0.0.0, dont le traitement conduira \u00e0 la r\u00e9utilisation du pointeur pendu restant. <\/p>\n

La vuln\u00e9rabilit\u00e9 est due \u00e0 une erreur commise il y a 18 ans dans le noyau 2.6.25 (ann\u00e9e 2008) et corrig\u00e9e dans les versions 6.6.148, 6.12.101, 6.18.42, 7.1.6 et 7.2-rc5. Le statut de correction des vuln\u00e9rabilit\u00e9s dans les distributions peut \u00eatre \u00e9valu\u00e9 sur ces pages : Debian, Ubuntu, SUSE\/openSUSE, RHEL, Gentoo, Arch, Fedora.
\n
Source : opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 SCTP, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u043c\u043e\u0439 \u0432 \u044f\u0434\u0440\u0435 Linux, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2026-64564), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u043c\u0443 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c root-\u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435. \u0421\u0440\u0435\u0434\u0438 \u043f\u0440\u043e\u0447\u0435\u0433\u043e, \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c 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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182837","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47SCTPhantom \u2014 Vuln\u00e9rabilit\u00e9 dans le noyau Linux offrant un acc\u00e8s root et une sortie du conteneur | ProHoster","description":"Dans l'impl\u00e9mentation du protocole SCTP propos\u00e9e dans le noyau Linux, une vuln\u00e9rabilit\u00e9 (CVE-2026-64564) a \u00e9t\u00e9 identifi\u00e9e, permettant \u00e0 un utilisateur local d'obtenir des privil\u00e8ges root dans le 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