{"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\/sk\/blog\/news\/uyazvimosti-v-besprovodnom-steke-yadra-linux-dopuskayushhie-udalyonnoe-vypolnenie-koda","title":{"rendered":"Zranite\u013enosti v bezdr\u00f4tovom stacku jadra Linuxu umo\u017e\u0148uj\u00face vzdialen\u00e9 vykonanie k\u00f3du","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>V bezdr\u00f4tovom stacku (mac80211) jadra Linux bola odhalen\u00e1 s\u00e9ria zranite\u013enost\u00ed, z ktor\u00fdch niektor\u00e9 potenci\u00e1lne umo\u017e\u0148uj\u00fa dosiahnu\u0165 prete\u010denie vyrovn\u00e1vacej pam\u00e4te a vzdialen\u00e9 sp\u00fa\u0161\u0165anie k\u00f3du prostredn\u00edctvom zasielania \u0161peci\u00e1lne upraven\u00fdch paketov pr\u00edstupov\u00fdm bodom. Oprava je zatia\u013e k dispoz\u00edcii iba vo forme patche.     <\/p>\n<p>Na demon\u0161tr\u00e1ciu mo\u017enosti vykonania \u00fatoku boli zverejnen\u00e9 pr\u00edklady sn\u00edmok, ktor\u00e9 sp\u00f4sobuj\u00fa prete\u010denie, ako aj n\u00e1stroj na substit\u00faciu t\u00fdchto sn\u00edmok do bezdr\u00f4tov\u00e9ho stacku 802.11. Zranite\u013enosti nez\u00e1visia od pou\u017e\u00edvan\u00fdch bezdr\u00f4tov\u00fdch ovl\u00e1da\u010dov. Predpoklad\u00e1 sa, \u017ee zisten\u00e9 probl\u00e9my m\u00f4\u017eu by\u0165 pou\u017eit\u00e9 na vytvorenie funk\u010dn\u00fdch exploitov na vzdialen\u00e9 \u00fatoky na syst\u00e9my.  <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-41674 \u2014 prete\u010denie z\u00e1sobn\u00edka vo funkcii cfg80211_update_notlisted_nontrans, umo\u017e\u0148uj\u00face prep\u00edsa\u0165 a\u017e 256 bajtov v z\u00e1sobn\u00edku. Zranite\u013enos\u0165 sa prejavuje od jadra Linux 5.1 a m\u00f4\u017ee by\u0165 pou\u017eit\u00e1 na vzdialen\u00e9 vykon\u00e1vanie k\u00f3du.\n<li class=\"l\"> CVE-2022-42719 \u2014 pr\u00edstup k u\u017e uvo\u013enenej oblasti pam\u00e4te (use-after-free) v k\u00f3de na anal\u00fdzu MBSSID. Zranite\u013enos\u0165 sa prejavuje od jadra Linux 5.2 a m\u00f4\u017ee by\u0165 pou\u017eit\u00e1 na vzdialen\u00e9 vykon\u00e1vanie k\u00f3du.\n<li class=\"l\"> CVE-2022-42720 \u2014 pr\u00edstup k u\u017e uvo\u013enenej oblasti pam\u00e4te (use-after-free) v k\u00f3de na po\u010d\u00edtanie referenci\u00ed v re\u017eime BSS (Basic Service Set). Zranite\u013enos\u0165 sa prejavuje od jadra Linux 5.1 a m\u00f4\u017ee by\u0165 pou\u017eit\u00e1 na vzdialen\u00e9 vykon\u00e1vanie k\u00f3du.\n<li class=\"l\"> CVE-2022-42721 \u2014 po\u0161kodenie zoznamu BSS, ved\u00face k nekone\u010dn\u00e9mu cyklu. Zranite\u013enos\u0165 sa prejavuje od jadra Linux 5.1 a m\u00f4\u017ee by\u0165 pou\u017eit\u00e1 na vyvolanie odmietnutia slu\u017eby.\n<li class=\"l\"> CVE-2022-42722 \u2014 dereferencovanie nulov\u00e9ho ukazovate\u013ea v k\u00f3de na ochranu beaconov\u00fdch r\u00e1mcov. Probl\u00e9m sa m\u00f4\u017ee vyu\u017ei\u0165 na vyvolanie odmietnutia slu\u017eby.  <\/ul>\n<p>Zdroj: <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 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[&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 5.0.4 - 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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