{"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\/es\/blog\/news\/15-uyazvimostej-v-usb-drajverah-postavlyaemyh-v-yadre-linux","title":{"rendered":"15 vulnerabilidades en controladores USB incluidos en el n\u00facleo de Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/xairy\">Andr\u00e9s Konovalov<\/a><\/noindex> de la empresa Google  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/12\/03\/4\">public\u00f3<\/a><\/noindex> Informe sobre la detecci\u00f3n de 15 vulnerabilidades (CVE-2019-19523 \u2014 CVE-2019-19537) en los controladores USB ofrecidos en el n\u00facleo de Linux. Esta es la tercera serie de problemas encontrados durante la prueba de fuzzing de la pila USB en el paquete. <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/google\/syzkaller\/blob\/master\/docs\/linux\/external_fuzzing_usb.md\">syzkaller<\/a><\/noindex> \u2014 anteriormente, este investigador <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=47523\">(env\u00edo de datos).<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51333\">report\u00f3<\/a><\/noindex> sobre la existencia de 29 vulnerabilidades. <\/p>\n<p>En esta ocasi\u00f3n, la lista solo incluye vulnerabilidades provocadas por el acceso a \u00e1reas de memoria ya liberadas (use-after-free) o que conducen a filtraciones de datos de la memoria del n\u00facleo. Los problemas que pueden ser utilizados para negar el servicio no se incluyen en el informe. Las vulnerabilidades pueden ser explotadas al conectar dispositivos USB especialmente preparados a la computadora. Las correcciones para todos los problemas mencionados en el informe ya se han incluido en el n\u00facleo, pero algunos que no se incluyeron en el informe <noindex><a rel=\"nofollow\" href=\"https:\/\/syzkaller.appspot.com\/upstream?manager=ci2-upstream-usb\">un error<\/a><\/noindex> permanecen sin solucionar.<\/p>\n<p>Las vulnerabilidades m\u00e1s peligrosas de la clase \u00abuse-after-free\u00bb, que pueden permitir la ejecuci\u00f3n de c\u00f3digo malicioso, han sido corregidas en los controladores adutux, ff-memless, ieee802154, pn533, hiddev, iowarrior, mcba_usb y yurex. Adicionalmente, bajo CVE-2019-19532 se han reducido 14 vulnerabilidades en los controladores HID, causadas por errores que permiten escritura fuera de los l\u00edmites del b\u00fafer (out-of-bounds write). En los controladores ttusb_dec, pcan_usb_fd y pcan_usb_pro se han encontrado problemas que pueden llevar a la filtraci\u00f3n de datos de la memoria del n\u00facleo. En el c\u00f3digo de la pila USB para trabajar con dispositivos de caracteres se ha identificado un problema (CVE-2019-19537) causado por una condici\u00f3n de carrera (race condition).<\/p>\n<p>Tambi\u00e9n se puede destacar<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2019\/11\/22\/1\">la detecci\u00f3n<\/a><\/noindex> cuatro vulnerabilidades (CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901) en el controlador para chips inal\u00e1mbricos Marvell, que pueden llevar a un desbordamiento de b\u00fafer. Un ataque puede ser llevado a cabo de forma remota mediante el env\u00edo de tramas espec\u00edficamente formateadas al conectarse a un punto de acceso inal\u00e1mbrico de un atacante. La amenaza m\u00e1s probable se\u00f1alada es una denegaci\u00f3n de servicio remota (ca\u00edda del n\u00facleo), pero no se descarta la posibilidad de ejecuci\u00f3n de c\u00f3digo en el sistema.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fuente: <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-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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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