{"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\/fr\/blog\/news\/uyazvimosti-v-besprovodnom-steke-yadra-linux-dopuskayushhie-udalyonnoe-vypolnenie-koda","title":{"rendered":"Vuln\u00e9rabilit\u00e9s dans la pile sans fil du noyau Linux, permettant l'ex\u00e9cution de code \u00e0 distance.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Une s\u00e9rie de vuln\u00e9rabilit\u00e9s a \u00e9t\u00e9 identifi\u00e9e dans la pile sans fil (mac80211) du noyau Linux, dont certaines pourraient potentiellement permettre un d\u00e9passement de tampon et une ex\u00e9cution de code \u00e0 distance via l'envoi de paquets sp\u00e9cialement form\u00e9s par un point d'acc\u00e8s. Un correctif est actuellement disponible uniquement sous forme de patch.     <\/p>\n<p>Pour d\u00e9montrer la possibilit\u00e9 de mener une attaque, des exemples de trames provoquant un d\u00e9passement ont \u00e9t\u00e9 publi\u00e9s, ainsi qu'un utilitaire pour injecter ces trames dans la pile sans fil 802.11. Les vuln\u00e9rabilit\u00e9s ne d\u00e9pendent pas des pilotes sans fil utilis\u00e9s. Il est suppos\u00e9 que les probl\u00e8mes identifi\u00e9s pourraient \u00eatre exploit\u00e9s pour cr\u00e9er des exploits fonctionnels pour une attaque \u00e0 distance sur les syst\u00e8mes.  <\/p>\n<ul>\n<li class=\"l\"> CVE-2022-41674 \u2014 d\u00e9bordement de tampon dans la fonction cfg80211_update_notlisted_nontrans, permettant d'\u00e9crire jusqu'\u00e0 256 octets dans la m\u00e9moire heap. La vuln\u00e9rabilit\u00e9 appara\u00eet \u00e0 partir du noyau Linux 5.1 et peut \u00eatre utilis\u00e9e pour l'ex\u00e9cution de code \u00e0 distance.\n<li class=\"l\"> CVE-2022-42719 \u2014 acc\u00e8s \u00e0 une zone m\u00e9moire d\u00e9j\u00e0 lib\u00e9r\u00e9e (use-after-free) dans le code d'analyse de MBSSID. La vuln\u00e9rabilit\u00e9 appara\u00eet \u00e0 partir du noyau Linux 5.2 et peut \u00eatre utilis\u00e9e pour l'ex\u00e9cution de code \u00e0 distance.\n<li class=\"l\"> CVE-2022-42720 \u2014 acc\u00e8s \u00e0 une zone m\u00e9moire d\u00e9j\u00e0 lib\u00e9r\u00e9e (use-after-free) dans le code de comptage des r\u00e9f\u00e9rences en mode BSS (Basic Service Set). La vuln\u00e9rabilit\u00e9 appara\u00eet \u00e0 partir du noyau Linux 5.1 et peut \u00eatre utilis\u00e9e pour l'ex\u00e9cution de code \u00e0 distance.\n<li class=\"l\"> CVE-2022-42721 \u2014 corruption de la liste BSS, entra\u00eenant une boucle infinie. La vuln\u00e9rabilit\u00e9 appara\u00eet \u00e0 partir du noyau Linux 5.1 et peut \u00eatre utilis\u00e9e pour provoquer un d\u00e9ni de service.\n<li class=\"l\"> CVE-2022-42722 \u2014 d\u00e9r\u00e9f\u00e9rencement d'un pointeur nul dans le code de protection des trames beacon. Ce probl\u00e8me peut \u00eatre utilis\u00e9 pour provoquer un d\u00e9ni de service.  <\/ul>\n<p>Source : <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 5.0.2 - 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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