{"id":105304,"date":"2022-10-13T21:36:48","date_gmt":"2022-10-13T19:36:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-besprovodnom-steke-yadra-linux-dopuskayushhie-udalyonnoe-vypolnenie-koda"},"modified":"2022-10-13T21:36:48","modified_gmt":"2022-10-13T19:36:48","slug":"uyazvimosti-v-besprovodnom-steke-yadra-linux-dopuskayushhie-udalyonnoe-vypolnenie-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/uyazvimosti-v-besprovodnom-steke-yadra-linux-dopuskayushhie-udalyonnoe-vypolnenie-koda","title":{"rendered":"Luki w bezprzewodowym stosie j\u0105dra Linux, umo\u017cliwiaj\u0105ce zdalne wykonanie kodu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>W stosie bezprzewodowym (mac80211) j\u0105dra Linux zidentyfikowano seri\u0119 luk, z kt\u00f3rych niekt\u00f3re mog\u0105 potencjalnie prowadzi\u0107 do przepe\u0142nienia bufora i zdalnego wykonywania kodu poprzez wysy\u0142anie specjalnie sformatowanych pakiet\u00f3w z punktu dost\u0119powego. Poprawka jest obecnie dost\u0119pna tylko w formie \u0142atki.     <\/p>\n<p>Aby zademonstrowa\u0107 mo\u017cliwo\u015b\u0107 przeprowadzenia ataku, opublikowano przyk\u0142ady klatek powoduj\u0105cych przepe\u0142nienie oraz narz\u0119dzie do wstawiania tych klatek do bezprzewodowego stosu 802.11. Luka nie zale\u017cy od u\u017cywanych sterownik\u00f3w bezprzewodowych. Zak\u0142ada si\u0119, \u017ce zidentyfikowane problemy mog\u0105 zosta\u0107 wykorzystane do stworzenia dzia\u0142aj\u0105cych exploit\u00f3w do zdalnego ataku na systemy.  <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-41674 \u2014 przepe\u0142nienie bufora w funkcji cfg80211_update_notlisted_nontrans, pozwalaj\u0105ce na nadpisanie do 256 bajt\u00f3w w pami\u0119ci. Wra\u017cliwo\u015b\u0107 objawia si\u0119 od j\u0105dra Linux 5.1 i mo\u017ce by\u0107 wykorzystana do zdalnego wykonania kodu.\n<li class=\"l\"> CVE-2022-42719 \u2014 odwo\u0142anie do ju\u017c zwolnionego obszaru pami\u0119ci (use-after-free) w kodzie parsowania MBSSID. Wra\u017cliwo\u015b\u0107 objawia si\u0119 od j\u0105dra Linux 5.2 i mo\u017ce by\u0107 wykorzystana do zdalnego wykonania kodu.\n<li class=\"l\"> CVE-2022-42720 \u2014 odwo\u0142anie do ju\u017c zwolnionego obszaru pami\u0119ci (use-after-free) w kodzie liczenia referencji w trybie BSS (Basic Service Set). Wra\u017cliwo\u015b\u0107 objawia si\u0119 od j\u0105dra Linux 5.1 i mo\u017ce by\u0107 wykorzystana do zdalnego wykonania kodu.\n<li class=\"l\"> CVE-2022-42721 \u2014 uszkodzenie listy BSS, prowadz\u0105ce do niesko\u0144czonego cyklu. Wra\u017cliwo\u015b\u0107 objawia si\u0119 od j\u0105dra Linux 5.1 i mo\u017ce by\u0107 wykorzystana do wywo\u0142ania odmowy us\u0142ugi.\n<li class=\"l\"> CVE-2022-42722 \u2014 dereferencja wska\u017anika zerowego w kodzie ochrony ramek beacon. Problem mo\u017ce by\u0107 wykorzystany do wywo\u0142ania odmowy us\u0142ugi.  <\/ul>\n<p>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57916\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u043c \u0441\u0442\u0435\u043a\u0435 (mac80211) \u044f\u0434\u0440\u0430 Linux \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430, \u0441\u0435\u0440\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0431\u0443\u0444\u0435\u0440\u0430 \u0438 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0442\u043e\u0447\u043a\u043e\u0439 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u043f\u0430\u043a\u0435\u0442\u043e\u0432. \u0418\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u043a\u0430 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u0444\u043e\u0440\u043c\u0435 \u043f\u0430\u0442\u0447\u0430. \u0414\u043b\u044f \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u0430\u0442\u0430\u043a\u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043f\u0440\u0438\u043c\u0435\u0440\u044b \u043a\u0430\u0434\u0440\u043e\u0432, \u0432\u044b\u0437\u044b\u0432\u0430\u044e\u0449\u0438\u0445 \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0443\u0442\u0438\u043b\u0438\u0442\u0430 \u0434\u043b\u044f \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u044d\u0442\u0438\u0445 \u043a\u0430\u0434\u0440\u043e\u0432 \u0432 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439 \u0441\u0442\u0435\u043a [&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-105304","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u043c \u0441\u0442\u0435\u043a\u0435 (mac80211) \u044f\u0434\u0440\u0430 Linux \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430, \u0441\u0435\u0440\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e 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