{"id":182816,"date":"2026-08-10T19:49:31","date_gmt":"2026-08-10T17:49:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/zapscape-uyazvimost-v-gipervizore-kvm-pozvolyayushhaya-poluchit-root-dostup-k-host-sisteme"},"modified":"2026-08-10T19:49:31","modified_gmt":"2026-08-10T17:49:31","slug":"zapscape-uyazvimost-v-gipervizore-kvm-pozvolyayushhaya-poluchit-root-dostup-k-host-sisteme","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/zapscape-uyazvimost-v-gipervizore-kvm-pozvolyayushhaya-poluchit-root-dostup-k-host-sisteme","title":{"rendered":"Zapscape \u2014 una vulnerabilidad en el hipervisor KVM que permite obtener acceso root al sistema host","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Se ha revelado informaci\u00f3n sobre una vulnerabilidad (CVE-2026-64561) en el hipervisor KVM, que permite obtener acceso con privilegios de root al entorno del host si se tiene acceso con privilegios de root en el sistema invitado. Este problema tambi\u00e9n puede utilizarse para elevar localmente los privilegios si se tiene acceso al dispositivo \/dev\/kvm (por ejemplo, en RHEL este acceso est\u00e1 disponible para todos los usuarios). Un prototipo de exploit est\u00e1 disponible para su descarga. Se le ha asignado el nombre en c\u00f3digo Zapscape. <\/p>\n

La vulnerabilidad es causada por un acceso a la memoria despu\u00e9s de su liberaci\u00f3n (use-after-free) en los componentes del hipervisor, KVM<\/a>que se ejecutan del lado de la m\u00e1quina virtual para emular el bloque de control de memoria (MMU) y la traducci\u00f3n de direcciones entre el host y el sistema invitado. La vulnerabilidad se manifiesta en sistemas con procesadores Intel y AMD durante el proceso de eliminaci\u00f3n recursiva de p\u00e1ginas de sombra de memoria, que ocurre al liberar la memoria del MMU (KVM elimina recursivamente la p\u00e1gina de sombra ra\u00edz, que sigue siendo utilizada durante la limpieza del MMU). <\/p>\n

El problema es el resultado de un error cometido hace 6 a\u00f1os y que fue corregido hace unos d\u00edas en actualizaciones del n\u00facleo 7.1.6, 6.18.42 y 6.6.148. El estado de la correcci\u00f3n de vulnerabilidades en las distribuciones se puede evaluar en estas p\u00e1ginas: Debian, Ubuntu, SUSE\/openSUSE, RHEL, Gentoo, Arch, Fedora.
\n
Fuente: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u044d\u043a\u0441\u043f\u043e\u0438\u0442\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0435 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d\u043e […]<\/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-182816","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\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\udd47Zapscape \u2014 una vulnerabilidad en el hipervisor KVM que permite obtener acceso root al sistema host | ProHoster","description":"Se ha revelado informaci\u00f3n sobre una vulnerabilidad (CVE-2026-64561) en el hipervisor KVM, que permite obtener acceso con privilegios de root 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