{"id":104640,"date":"2022-07-12T21:36:50","date_gmt":"2022-07-12T19:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-4-s-ustraneniem-uyazvimostej"},"modified":"2022-07-12T21:36:50","modified_gmt":"2022-07-12T19:36:50","slug":"obnovlenie-x-org-server-21-1-4-s-ustraneniem-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/obnovlenie-x-org-server-21-1-4-s-ustraneniem-uyazvimostej","title":{"rendered":"X.Org Server 21.1.4 uuendamine turvavigade k\u00f5rvaldamisega","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Saadaval on parandav v\u00e4ljaanne X.Org Server 21.1.4, kus on likvideeritud kaks haavatavust Xkb laienduste t\u00f6\u00f6tlejas, mis v\u00f5imaldavad t\u00f5sta oma privileege s\u00fcsteemis, kui X-server t\u00f6\u00f6tab root \u00f5igustega, v\u00f5i k\u00e4ivitada koodi eemalolevas s\u00fcsteemis, kui ligip\u00e4\u00e4su kasutatakse X11 seansi edastamise kaudu SSH. Haavatavused tulenevad n\u00f5uetekohase suuruse kontrollimise puudumisest ProcXkbSetGeometry (CVE-2022-2319) ja ProcXkbSetDeviceInfo (CVE-2022-2320) p\u00e4ringute t\u00f6\u00f6tlejates, mida saab \u00e4ra kasutada m\u00e4lus kirjutamiseks v\u00e4ljaspool eraldatud puhverdust. <\/p>\n

ProcXkbSetGeometry funktsioonis puudus p\u00e4ringuv\u00e4ljade suuruse kontroll, mis v\u00f5imaldas kliendil p\u00f5hjustada \u00fclevoolu, esitades p\u00e4ringus sektsioonide arvu, mis ei vastanud tegelikult saadetud andmetele. Funktsioonis ProcXkbSetDeviceInfo on haavatavus tingitud funktsioonide kutsumise valest j\u00e4rjekorrast \u2014 parameetrite kontrollimise funktsioon kutsuti esile p\u00e4rast funktsiooni, kus neid parameetreid kasutati (funktsioonide nimed olid segamini ja XkbSetDeviceInfo funktsioon sisaldas kontrollimiskoodi, samas kui XkbSetDeviceInfoCheck oli m\u00f5eldud v\u00e4\u00e4rtuste seadmiseks).
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a X.Org Server 21.1.4, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u0445 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f Xkb, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u043f\u043e\u0434\u043d\u044f\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435, \u0435\u0441\u043b\u0438 X-\u0441\u0435\u0440\u0432\u0435\u0440 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442\u0441\u044f \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 root, \u0438\u043b\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043d\u0430 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435, \u0435\u0441\u043b\u0438 \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u0435\u0430\u043d\u0441\u0430 X11 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 SSH. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432\u044b\u0437\u0432\u0430\u043d\u044b \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 ProcXkbSetGeometry (CVE-2022-2319) \u0438 […]<\/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-104640","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\udd47 X.Org Server 21.1.4 v\u00e4rskendus haavatavuste likvideerimisega | ProHoster","description":"Saadaval on parandav v\u00e4ljaanne X.Org Server 21.1.4, kus on likvideeritud kaks haavatavust Xkb laienduste t\u00f6\u00f6tlejas, mis v\u00f5imaldavad t\u00f5sta oma privileege s\u00fcsteemis, kui X-server t\u00f6\u00f6tab root \u00f5igustega, 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