{"id":36639,"date":"2019-10-31T22:12:50","date_gmt":"2019-10-31T19:12:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/drajver-floppi-diskov-ostavlen-v-yadre-linux-bez-soprovozhdeniya\/"},"modified":"2019-10-31T22:12:50","modified_gmt":"2019-10-31T19:12:50","slug":"drajver-floppi-diskov-ostavlen-v-yadre-linux-bez-soprovozhdeniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/drajver-floppi-diskov-ostavlen-v-yadre-linux-bez-soprovozhdeniya","title":{"rendered":"Le pilote de disquettes est rest\u00e9 dans le noyau Linux sans accompagnement.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Le noyau Linux 5.3 ont \u00e9t\u00e9 adopt\u00e9es<\/a><\/noindex> int\u00e8gre des modifications ajoutant une protection suppl\u00e9mentaire aux appels ioctl li\u00e9s au driver de disquette, ce dernier \u00e9tant marqu\u00e9 comme abandonn\u00e9
\n(\u00aborphelin\u00bb), ce qui implique la fin de son test.<\/p>\n

Le pilote est consid\u00e9r\u00e9 comme obsol\u00e8te, car il est difficile de trouver du mat\u00e9riel fonctionnel pour le tester \u2014 tous les p\u00e9riph\u00e9riques externes actuels utilisent g\u00e9n\u00e9ralement des interfaces USB. Cependant, le retrait du pilote du noyau est compliqu\u00e9 par le fait que les contr\u00f4leurs de disquettes sont toujours \u00e9mul\u00e9s dans les syst\u00e8mes de virtualisation. Par cons\u00e9quent, le pilote reste pour l'instant dans le noyau, mais son bon fonctionnement n'est pas garanti.<\/p>\n

De plus, dans le driver de disquette a \u00e9t\u00e9 corrig\u00e9e<\/a><\/noindex> CVE-2020-10174<\/a><\/noindex> (CVE-2019-14283<\/a><\/noindex>), permettant, par le biais de manipulations avec ioctl, \u00e0 un utilisateur non privil\u00e9gi\u00e9 ayant la possibilit\u00e9 d'ins\u00e9rer sa propre disquette de lire des donn\u00e9es dans des zones de m\u00e9moire en dehors des limites du tampon de copie (par exemple, des donn\u00e9es r\u00e9siduelles du cache disque et du tampon d'entr\u00e9e peuvent se trouver dans des zones adjacentes). D'une part, la vuln\u00e9rabilit\u00e9 reste pertinente car le driver de disquette se charge automatiquement en pr\u00e9sence d'un contr\u00f4leur \u00e9mul\u00e9 dans les syst\u00e8mes de virtualisation (par exemple, il est utilis\u00e9 par d\u00e9faut dans QEMU), mais d'autre part, pour exploiter le probl\u00e8me, une image de disquette pr\u00e9par\u00e9e par un attaquant doit \u00eatre connect\u00e9e.<\/p>\n

<\/a><\/noindex><\/p>\n

Source : opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux 5.3 \u043f\u0440\u0438\u043d\u044f\u0442\u044b \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0441 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b ioctl-\u0432\u044b\u0437\u043e\u0432\u043e\u0432, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u043c floppy, \u0430 \u0441\u0430\u043c \u0434\u0440\u0430\u0439\u0432\u0435\u0440 \u043f\u043e\u043c\u0435\u0447\u0435\u043d \u043a\u0430\u043a \u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u0431\u0435\u0437 \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0435\u043d\u0438\u044f («orphaned»), \u0447\u0442\u043e \u043f\u043e\u0434\u0440\u0430\u0437\u0443\u043c\u0435\u0432\u0430\u0435\u0442 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\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 USB. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c […]<\/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-36639","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\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Le driver de disquettes est abandonn\u00e9 dans le noyau Linux | ProHoster","description":"Le noyau Linux 5.3 a accept\u00e9 des modifications ajoutant une protection 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