{"id":39040,"date":"2019-10-31T22:27:31","date_gmt":"2019-10-31T19:27:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/udalyonno-ekspluatiruemaya-uyazvimost-v-linux-drajvere-dlya-chipov-realtek\/"},"modified":"2019-10-31T22:27:31","modified_gmt":"2019-10-31T19:27:31","slug":"udalyonno-ekspluatiruemaya-uyazvimost-v-linux-drajvere-dlya-chipov-realtek","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/udalyonno-ekspluatiruemaya-uyazvimost-v-linux-drajvere-dlya-chipov-realtek","title":{"rendered":"Kaugt\u00f6\u00f6tamiseks kasutatav haavatavus Linuxi draiveris Realteki kiipide jaoks","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Linuxi tuumiku osana on draiver rtlwifi<\/a><\/noindex> Realtek kiipide juhtmeteta adapterite jaoks tuvastatud<\/a><\/noindex> haavatavus (CVE-2019-17666<\/a><\/noindex>), mis v\u00f5ib potentsiaalselt olla \u00e4ra kasutatud koodi v\u00e4l\u6267\u884c\u4ed5ki fori konteksti vorminguga kaadrite saatmisega.<\/p>\n

Vulnerabiliteet tuleneb puhvri \u00fclevoolust P2P (Wifi-Direct) re\u017eiimi realiseerimise koodis. Kaadrite anal\u00fc\u00fcsimisel NoA<\/a><\/noindex> (Notice of Absence) puudub \u00fchtse v\u00e4\u00e4rtuse suuruse kontroll, mis v\u00f5imaldab kirjutada andmed puhvri piiridest v\u00e4lja ja \u00fclekirjutada teavet j\u00e4rgmistes tuumastruktuurides.<\/p>\n

R\u00fcnnak v\u00f5ib toimuda spetsiaalselt vormindatud kaadrite saatmise kaudu Realtek kiibist p\u00f5hinevale aktiivsele v\u00f5rguadapteriga s\u00fcsteemile, mis toetab tehnoloogiat Wi-Fi Direct<\/a><\/noindex>, mis v\u00f5imaldab kahel juhtmeteta adapteril luua otsese \u00fchenduse ilma juurdep\u00e4\u00e4supunktita. Probleemi kasutamiseks ei ole vajalik r\u00fcndaja v\u00f5rgu\u00fchendusele \u00fchendamine, samuti ei ole vaja kasutaja poolseid toiminguid, piisab r\u00fcndaja viibimisest juhtmeteta signaali ulatuses. <\/p>\n

T\u00f6\u00f6tav protot\u00fc\u00fcp eksploitist on praegu piiratud tuuma kokkuvarisemise kaugkutsumisega, kuid potentsiaalselt ei v\u00e4lista haavatavus koodi v\u00e4l\u6267\u884c\u4ed5ki \u00e4raelamist (see oletus on praegu ainult teoreetiline, kuna koodi v\u00e4l\u6267\u884c\u4ed5ki eksploitide protot\u00fc\u00fcp puudub, kuid probleemi leidnud uurija t\u00f6\u00f6tas juba t\u00f6\u00f6tas<\/a><\/noindex> sellega tegelemise kallal).<\/p>\n

Probleem ilmneb alates tuumast 3.12<\/a><\/noindex> (muu andmetel ilmneb probleem alates tuumast 3.10<\/a><\/noindex>), mis ilmus aastal 2013. Parandus on praegu saadaval ainult patch<\/a><\/noindex>. Jaotustes j\u00e4\u00e4b probleem lahendamata.
\nJ\u00e4lgida turvavigade k\u00f5rvaldamist jaotustes saab nendele lehtedele: Debian<\/a><\/noindex>, SUSE\/openSUSE<\/a><\/noindex>, RHEL<\/a><\/noindex>, Ubuntu<\/a><\/noindex>, Arch Linux<\/a><\/noindex>, Fedora<\/a><\/noindex>. T\u00f5en\u00e4oliselt on haavatavus ka puudutab<\/a><\/noindex> Androidi platvormi.<\/p>\n

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

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

\u0412\u043e \u0432\u0445\u043e\u0434\u044f\u0449\u0435\u043c \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u044f\u0434\u0440\u0430 Linux \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0435 rtlwifi \u0434\u043b\u044f \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u044b\u0445 \u0430\u0434\u0430\u043f\u0442\u0435\u0440\u043e\u0432 \u043d\u0430 \u0447\u0438\u043f\u0430\u0445 Realtek \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2019-17666), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u0432 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[…]<\/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-39040","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\udd47Kaugelt \u00e4ra kasutatav haavatavus Linuxi draiveris Realtek kiipidele | ProHoster","description":"Linuxi tuumiku osana on draiver rtlwifi Realtek kiipide juhtmeteta adapterite 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