{"id":53560,"date":"2019-12-04T00:00:00","date_gmt":"2019-12-03T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/15-uyazvimostej-v-usb-drajverah-postavlyaemyh-v-yadre-linux"},"modified":"2020-02-18T14:01:28","modified_gmt":"2020-02-18T11:01:28","slug":"15-uyazvimostej-v-usb-drajverah-postavlyaemyh-v-yadre-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/15-uyazvimostej-v-usb-drajverah-postavlyaemyh-v-yadre-linux","title":{"rendered":"15 vulnerabilit\u00e0 nei driver USB forniti nel kernel Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/xairy\">Andrea Konovalov<\/a><\/noindex> di Google  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/12\/03\/4\">ha pubblicato<\/a><\/noindex> rapporto sull'individuazione di ulteriori 15 vulnerabilit\u00e0 (CVE-2019-19523 \u2013 CVE-2019-19537) nei driver USB offerti nel kernel di Linux. Questo \u00e8 il terzo lotto di problemi trovati durante il fuzzing del stack USB nel pacchetto <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/syzkaller\/blob\/master\/docs\/linux\/external_fuzzing_usb.md\">syzkaller<\/a><\/noindex> \u2013 precedentemente questo ricercatore <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=47523\">ha gi\u00e0<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51333\">aveva segnalato<\/a><\/noindex> la presenza di 29 vulnerabilit\u00e0. <\/p>\n<p>Questa volta, l'elenco include solo le vulnerabilit\u00e0 causate dall'accesso a regioni di memoria gi\u00e0 liberate (use-after-free) o che portano a perdite di dati dalla memoria del kernel. I problemi che potrebbero essere utilizzati per causare un'interruzione del servizio non sono stati inclusi nel rapporto. Le vulnerabilit\u00e0 potrebbero essere potenzialmente sfruttate collegando dispositivi USB appositamente preparati a un computer. Le correzioni per tutti i problemi menzionati nel rapporto sono gi\u00e0 incluse nel kernel, ma alcune non incluse nel rapporto <noindex><a rel=\"nofollow\" href=\"https:\/\/syzkaller.appspot.com\/upstream?manager=ci2-upstream-usb\">un errore<\/a><\/noindex> rimangono ancora non risolte.<\/p>\n<p>Le vulnerabilit\u00e0 pi\u00f9 pericolose della classe \u00abuse-after-free\u00bb, che possono portare all'esecuzione di codice da parte dell'attaccante, sono state corrette nei driver adutux, ff-memless, ieee802154, pn533, hiddev, iowarrior, mcba_usb e yurex. Con CVE-2019-19532 sono state segnalate ulteriori 14 vulnerabilit\u00e0 nei driver HID, causate da errori che permettono la scrittura oltre il limite del buffer (out-of-bounds write). Nei driver ttusb_dec, pcan_usb_fd e pcan_usb_pro sono state trovate problematiche che portano a perdite di dati dalla memoria del kernel. Nel codice del stack USB per la gestione dei dispositivi a caratteri \u00e8 stata individuata una problematica (CVE-2019-19537), causata da una condizione di gara (race condition).<\/p>\n<p>Si pu\u00f2 anche notare<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/11\/22\/1\">scoperta<\/a><\/noindex> quattro vulnerabilit\u00e0 (CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901) nel driver per chip wireless Marvell, che possono portare a un overflow del buffer. L'attacco pu\u00f2 essere eseguito da remoto inviando pacchetti formattati in modo specifico quando ci si connette a un punto di accesso wireless controllato dall'attaccante. La minaccia pi\u00f9 probabile \u00e8 rappresentata da un denial of service remoto (crash del kernel), ma non si esclude la possibilit\u00e0 di esecuzione di codice nel sistema.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51974\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0410\u043d\u0434\u0440\u0435\u0439 \u041a\u043e\u043d\u043e\u0432\u0430\u043b\u043e\u0432 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Google \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u043e\u0442\u0447\u0451\u0442 \u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u0438 \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u044b\u0445 15 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 (CVE-2019-19523 &#8212; CVE-2019-19537) \u0432 USB-\u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430\u0445, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u0435\u043c\u044b\u0445 \u0432 \u044f\u0434\u0440\u0435 Linux. \u042d\u0442\u043e \u0442\u0440\u0435\u0442\u044c\u044f \u043f\u043e\u0440\u0446\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c, \u043d\u0430\u0439\u0434\u0435\u043d\u043d\u044b\u0445 \u043f\u0440\u0438 \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0438 fuzzing-\u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f USB-\u0441\u0442\u0435\u043a\u0430 \u0432 \u043f\u0430\u043a\u0435\u0442\u0435 syzkaller &#8212; \u0440\u0430\u043d\u0435\u0435 \u0434\u0430\u043d\u043d\u044b\u0439 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0443\u0436\u0435 \u0441\u043e\u043e\u0431\u0449\u0430\u043b \u043e \u043d\u0430\u043b\u0438\u0447\u0438\u0438 29 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041d\u0430 \u044d\u0442\u043e\u0442 \u0440\u0430\u0437 \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u044b \u0442\u043e\u043b\u044c\u043a\u043e \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u0432\u044b\u0437\u0432\u0430\u043d\u043d\u044b\u0435 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0435\u043c \u043a \u0443\u0436\u0435 [&hellip;]<\/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-53560","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0410\u043d\u0434\u0440\u0435\u0439 \u041a\u043e\u043d\u043e\u0432\u0430\u043b\u043e\u0432 \u0438\u0437 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