En la base de paquetes de la distribuci\u00f3n Ubuntu 26.10, cuyo lanzamiento est\u00e1 previsto para el 15 de octubre, se ha realizado una transici\u00f3n completa al conjunto de herramientas uutils coreutils (Rust Coreutils), escrito en el lenguaje Rust. Las utilidades de Rust Coreutils han reemplazado por completo todos los componentes del paquete GNU Coreutils, incluidas las utilidades cp, mv y rm, que en Ubuntu 26.04 se proporcionaban en su versi\u00f3n de GNU Coreutils. <\/p>\n
El paquete rust-coreutils se incluy\u00f3 originalmente por defecto en el lanzamiento de Ubuntu 25.10, pero en la rama LTS de Ubuntu 26.04 se llev\u00f3 a cabo un retroceso para proporcionar las utilidades cp, mv y rm del conjunto GNU Coreutils. Las versiones cp, mv y rm fueron devueltas debido a problemas de seguridad identificados durante la auditor\u00eda de la base de c\u00f3digo de Rust Coreutils. La mayor\u00eda de las vulnerabilidades en Rust Coreutils son causadas por la presencia de una condici\u00f3n de carrera que permite modificar datos en el momento posterior a la verificaci\u00f3n de la validez de la informaci\u00f3n, pero antes de ejecutar operaciones con ellos (TOCTOU \u2014 Time-Of-Check-To-Time-Of-Use). Entre otras cosas, tales vulnerabilidades permiten sustituir un archivo por un enlace simb\u00f3lico en el momento entre la finalizaci\u00f3n de la verificaci\u00f3n y el inicio de la ejecuci\u00f3n de la operaci\u00f3n. <\/p>\n
En el contexto de uso de las utilidades cp, mv y rm en scripts de sistema que se ejecutan con privilegios de root, la sustituci\u00f3n por un enlace simb\u00f3lico permite copiar, sobrescribir o eliminar archivos arbitrarios. Por ejemplo, al eliminar directorios de forma recursiva, la utilidad rm primero verifica todos los directorios y luego los elimina secuencialmente en orden inverso, llamando a la funci\u00f3n rmdir(). Si se sustituye el directorio padre por un enlace simb\u00f3lico inmediatamente despu\u00e9s de verificar dicho directorio, pero antes de verificar los directorios secundarios que contiene, es posible lograr la eliminaci\u00f3n de cualquier directorio en el sistema mediante la ejecuci\u00f3n diaria de un script de cron \/etc\/cron.daily\/apport, el cual, trabajando con privilegios de root, elimina recursivamente el contenido del directorio \/var\/crash, accesible para escritura por todos los usuarios del sistema. \u0412 \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u0439 \u0431\u0430\u0437\u0435 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 Ubuntu 26.10, \u0440\u0435\u043b\u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u043d\u0430\u043c\u0435\u0447\u0435\u043d \u043d\u0430 15 \u043e\u043a\u0442\u044f\u0431\u0440\u044f, \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u0451\u043d \u043f\u043e\u043b\u043d\u044b\u0439 \u043f\u0435\u0440\u0435\u0445\u043e\u0434 \u043d\u0430 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 uutils coreutils (Rust Coreutils), \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0439 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust. \u0423\u0442\u0438\u043b\u0438\u0442\u044b \u0438\u0437 \u0441\u043e\u0441\u0442\u0430\u0432\u0430 Rust Coreutils \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0437\u0430\u043c\u0435\u043d\u0438\u043b\u0438 \u0432\u0441\u0435 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u044b \u043f\u0430\u043a\u0435\u0442\u0430 GNU Coreutils, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0443\u0442\u0438\u043b\u0438\u0442\u044b cp, mv \u0438 rm, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0432 Ubuntu 26.04 \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u043b\u0438\u0441\u044c \u0432 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0435 \u0438\u0437 GNU Coreutils. \u041f\u0430\u043a\u0435\u0442 rust-coreutils […]<\/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-183346","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\udd47Ubuntu 26.10 se ha migrado completamente a Rust Coreutils | ProHoster","description":"En la base de paquetes de la distribuci\u00f3n Ubuntu 26.10, cuyo lanzamiento est\u00e1 previsto para el 15 de octubre, se ha realizado una transici\u00f3n completa al conjunto de herramientas uutils coreutils (Rust Coreutils), escrito en el lenguaje 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\n
Fuente: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"