{"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\/hu\/blog\/news\/drajver-floppi-diskov-ostavlen-v-yadre-linux-bez-soprovozhdeniya","title":{"rendered":"A floppy lemezmeghajt\u00f3t a Linux kernelben t\u00e1mogat\u00e1s n\u00e9lk\u00fcli \u00e1llapotban hagyt\u00e1k.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Linux 5.3 kernel tartalm\u00e1ban elfogadva<\/a><\/noindex> a floppy meghajt\u00f3val kapcsolatos ioctl-h\u00edv\u00e1sok tov\u00e1bbi v\u00e9delm\u00e9t bevezet\u0151 m\u00f3dos\u00edt\u00e1sok szerepelnek, maga a meghajt\u00f3 pedig elhagyottnak van nyilv\u00e1n\u00edtva
\n(\u201e\u00e1rva\u201c), ami a tesztel\u00e9s\u00e9nek le\u00e1ll\u00edt\u00e1s\u00e1t jelenti.<\/p>\n

A meghajt\u00f3t elavultnak tekintik, mivel neh\u00e9z m\u0171k\u00f6d\u0151 hardvert tal\u00e1lni a tesztel\u00e9s\u00e9hez \u2014 minden aktu\u00e1lis k\u00fcls\u0151 adatt\u00e1rol\u00f3 \u00e1ltal\u00e1ban USB interf\u00e9szt haszn\u00e1l. Ezenk\u00edv\u00fcl a meghajt\u00f3 elt\u00e1vol\u00edt\u00e1s\u00e1t a kernelb\u0151l akad\u00e1lyozza, hogy a floppymeghajt\u00f3k vez\u00e9rl\u0151i tov\u00e1bbra is emul\u00e1lva vannak a virtualiz\u00e1ci\u00f3s rendszerekben. Ez\u00e9rt a meghajt\u00f3 egyel\u0151re a kernelben marad, de a megfelel\u0151 m\u0171k\u00f6d\u00e9se nem garant\u00e1lt.<\/p>\n

Ezenk\u00edv\u00fcl a floppy meghajt\u00f3ban eliminates<\/a><\/noindex> vulnerability<\/a><\/noindex> (CVE-2019-14283<\/a><\/noindex>), amely lehet\u0151v\u00e9 teszi, hogy egy nem privilegiz\u00e1lt felhaszn\u00e1l\u00f3, aki be tudja illeszteni a saj\u00e1t floppy lemez\u00e9t, adatokat olvasson a mem\u00f3riater\u00fcletekb\u0151l a m\u00e1sol\u00e1si puffer hat\u00e1rain k\u00edv\u00fcl (p\u00e9ld\u00e1ul a szomsz\u00e9dos ter\u00fcleteken maradv\u00e1nyadatok tal\u00e1lhat\u00f3ak a lemez gyors\u00edt\u00f3t\u00e1r\u00e1b\u00f3l \u00e9s a bemeneti pufferb\u0151l). Egyr\u00e9szt a sebezhet\u0151s\u00e9g tov\u00e1bbra is aktu\u00e1lis, mivel a floppy meghajt\u00f3 automatikusan bet\u00f6lt\u0151dik, ha a megfelel\u0151 emul\u00e1lt vez\u00e9rl\u0151 megtal\u00e1lhat\u00f3 a virtualiz\u00e1ci\u00f3s rendszerekben (p\u00e9ld\u00e1ul alap\u00e9rtelmezetten a QEMU-ban haszn\u00e1lj\u00e1k), m\u00e1sr\u00e9szt viszont a probl\u00e9ma kihaszn\u00e1l\u00e1s\u00e1hoz el\u0151 kell, hogy legyen k\u00e9sz\u00edtve egy t\u00e1mad\u00f3 \u00e1ltal manipul\u00e1lt floppy lemezk\u00e9p.<\/p>\n

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

Forr\u00e1s: 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 \u043f\u0440\u0435\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u0435\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. \u0414\u0440\u0430\u0439\u0432\u0435\u0440 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0438\u0439, \u0442\u0430\u043a \u043a\u0430\u043a \u0434\u043b\u044f \u0435\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0442\u0440\u0443\u0434\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0435\u0435 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435 — \u0432\u0441\u0435 \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0435 \u0432\u043d\u0435\u0448\u043d\u0438\u0435 \u043d\u0430\u043a\u043e\u043f\u0438\u0442\u0435\u043b\u0438, \u043a\u0430\u043a \u043f\u0440\u0430\u0432\u0438\u043b\u043e, \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\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\udd47A floppy lemezmeghajt\u00f3 elhagyva marad a Linux kernelben | ProHoster","description":"A Linux 5.3 kernelbe elfogadt\u00e1k a tov\u00e1bbi v\u00e9delem hozz\u00e1ad\u00e1s\u00e1ra vonatkoz\u00f3 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