{"id":111085,"date":"2023-10-25T09:10:21","date_gmt":"2023-10-25T07:10:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-9-i-xwayland-23-2-2-s-ustraneniem-uyazvimostej"},"modified":"2023-10-25T09:10:21","modified_gmt":"2023-10-25T07:10:21","slug":"obnovlenie-x-org-server-21-1-9-i-xwayland-23-2-2-s-ustraneniem-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/obnovlenie-x-org-server-21-1-9-i-xwayland-23-2-2-s-ustraneniem-uyazvimostej","title":{"rendered":"X.Org Server 21.1.9 ja xwayland 23.2.2 uuendus, mis k\u00f5rvaldab haavatavused","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Avaldatud on korrigeerivad versioonid X.Org Server 21.1.9 ja DDX-komponendi (Device-Dependent X) xwayland 22.2.2, mis v\u00f5imaldab X.Org Serveri k\u00e4ivitamist X11 rakenduste jooksutamiseks Waylandi alusel. Uutes versioonides on parandatud haavatavused, mida on potentsiaalselt v\u00f5imalik \u00e4ra kasutada, et t\u00f5sta \u00f5igusi s\u00fcsteemides, kus X-server t\u00f6\u00f6tab root'i \u00f5igustega, samuti kaugkoodi t\u00e4itmiseks konfiguratsioonides, kus p\u00e4\u00e4semiseks kasutatakse SSH kaudu X11 seansi suunamist.       <\/p>\n<p>Tuvastatud probleemid:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2023-5367 &#8212;   buferi \u00fcletmine funktsioonides XIChangeDeviceProperty ja RRChangeOutputProperty, mida saab \u00e4ra kasutada, kui lisada seadme sisendi v\u00f5i randr omadusele t\u00e4iendavaid elemente. Haavatavus ilmneb alates xorg-server versioonist 1.4.0 (2007. aasta) ja on p\u00f5hjustatud vale nihke arvutamisest t\u00e4iendavate elementide lisamisel olemasolevatele omadustele, mille t\u00f5ttu lisatakse elemendid vale nihkega, mis viib m\u00e4lus kirjutamiseni m\u00e4\u00e4ratud buferis v\u00e4ljas. N\u00e4iteks, kui lisada 3 elementi olemasolevatele 5 elemendile, reserveeritakse m\u00e4lu 8 elemendi massiivi jaoks, kuid varasemad elemendid salvestatakse uude massiivi alates indeksist 5, mitte 3-st, mis toob kaasa viimase kahe elemendi kirjutamise buferist v\u00e4lja.\n<li class=\"l\"> CVE-2023-5380 &#8212; m\u00e4lu kasutamine p\u00e4rast selle vabastamist (use-after-free) funktsioonis DestroyWindow. Probleemi saab \u00e4ra kasutada, kui liigutada n\u00e4idik ekraanide vahel mitme monitori konfiguratsioonides zaphod re\u017eiimis, kus iga monitori jaoks luuakse oma ekraan ja kutsuda \u00fcles klientakna sulgemise funktsiooni. Haavatavus ilmneb alates xorg-server versioonist 1.7.0 (2009. aasta) ja on p\u00f5hjustatud sellest, et p\u00e4rast akna sulgemist ja sellega seotud m\u00e4lu vabastamist p\u00fcsib ekraanile seondumise struktuuris aktiivne viit varasemale aknale. Xwayland ei ole k\u00e4sitletud haavatavuse suhtes haavatav.\n<li class=\"l\"> CVE-2023-5574 &#8212;   m\u00e4lu kasutamine p\u00e4rast selle vabastamist (use-after-free) funktsioonis DamageDestroy. Haavatavust saab \u00e4ra kasutada <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-newyork\/\"   title=\"serveris\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2753\">serveris<\/a> Xvfb on struktuuri puhastamise protsess ScreenRec serveri sulgemise v\u00f5i viimase kliendi lahti\u00fchendamise ajal. Nagu eelmine haavatavus, ilmneb probleem ainult mitme monitori konfiguratsioonides Zaphod re\u017eiimis. Haavatavus on olemas alates xorg-server-1.13.0 (2012. aasta) v\u00e4ljaandest ja j\u00e4\u00e4b endiselt parandamata (parandus ainult patchina).  <\/ul>\n<p>Lisaks haavatavuste k\u00f5rvaldamisele xwayland 23.2.2 on toimunud \u00fcleminek libbsd-overlay teegilt libbsd-le ning automaatne \u00fchendamine RemoteDesktop XDG Desktop Portali liidesega on peatatud, et m\u00e4\u00e4rata pordi socket, mida kasutatakse komposiidi saatmiseks. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-shicago\/\"   title=\"serveri\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2929\">serveri<\/a> XTesti s\u00fcndmustes. Automaatne \u00fchendamine tekitas probleeme Xwaylandi k\u00e4ivitamisel sissetalletatud kooskomplektserveris, seega on uues versioonis portaaliga \u00fchendamiseks vajalik selgelt n\u00e4idata valikut &#171;-enable-ei-portal&#187;.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59991\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 X.Org Server 21.1.9 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 22.2.2, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0437\u0430\u043f\u0443\u0441\u043a X.Org Server \u0434\u043b\u044f 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\u043a\u043e\u0442\u043e\u0440\u044b\u0445 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, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0434\u043b\u044f \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u0432 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u044f\u0445, [&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-111085","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\" 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