{"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\/de\/blog\/news\/drajver-floppi-diskov-ostavlen-v-yadre-linux-bez-soprovozhdeniya","title":{"rendered":"Der Floppy-Disk-Treiber wurde im Linux-Kernel ohne Unterst\u00fctzung belassen.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Im Kernel von Linux 5.3 angenommen<\/a><\/noindex> werden \u00c4nderungen mit zus\u00e4tzlichem Schutz f\u00fcr ioctl-Aufrufe, die mit dem Floppy-Treiber zusammenh\u00e4ngen, eingef\u00fchrt, und der Treiber selbst ist als ohne Unterst\u00fctzung gekennzeichnet
\n(\u201everwaist\u201c), was die Beendigung seiner Tests bedeutet.<\/p>\n

Der Treiber wird als veraltet betrachtet, da es schwierig ist, funktionierende Hardware f\u00fcr dessen Tests zu finden \u2013 alle aktuellen externen Speichermedien verwenden in der Regel die USB-Schnittstelle. Zudem wird die Entfernung des Treibers aus dem Kernel dadurch behindert, dass Floppy-Controller weiterhin in Virtualisierungssystemen emuliert werden. Daher bleibt der Treiber vorerst im Kernel, seine korrekte Funktion wird jedoch nicht garantiert.<\/p>\n

Dar\u00fcber hinaus wurde im Floppy-Treiber behoben<\/a><\/noindex> eine Schwachstelle<\/a><\/noindex> (CVE-2019-14283<\/a><\/noindex>), die es einem unprivilegierten Benutzer, der die M\u00f6glichkeit hat, seine eigene Floppy-Disk einzuf\u00fcgen, erm\u00f6glicht, Daten aus Speicherbereichen au\u00dferhalb der Grenzen des Kopierpuffers zu lesen (zum Beispiel k\u00f6nnen in angrenzenden Bereichen Restdaten aus dem Festplattencache und dem Eingabepuffer vorhanden sein). Einerseits bleibt die Schwachstelle relevant, da der Floppy-Treiber automatisch geladen wird, wenn ein entsprechender emulierter Controller in Virtualisierungssystemen vorhanden ist (zum Beispiel wird er standardm\u00e4\u00dfig in QEMU verwendet), andererseits muss f\u00fcr die Ausnutzung des Problems ein vom Angreifer vorbereitets Floppy-Disk-Abbild angeschlossen sein.<\/p>\n

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

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

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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\udd47Der Floppy-Disk-Treiber wurde im Linux-Kernel ohne Unterst\u00fctzung belassen | ProHoster","description":"Im Kernel von Linux 5.3 wurden \u00c4nderungen mit zus\u00e4tzlichem Schutz 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