{"id":146775,"date":"2025-10-29T23:12:08","date_gmt":"2025-10-29T21:12:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-20-s-ustraneniem-3-uyazvimostej"},"modified":"2025-10-29T23:12:08","modified_gmt":"2025-10-29T21:12:08","slug":"obnovlenie-x-org-server-21-1-20-s-ustraneniem-3-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/obnovlenie-x-org-server-21-1-20-s-ustraneniem-3-uyazvimostej","title":{"rendered":"Aktualizacja X.Org Server 21.1.20 z usuni\u0119ciem 3 luk w zabezpieczeniach","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Opublikowane poprawki do X.Org Server 21.1.19 oraz komponentu DDX (Device-Dependent X) xwayland 24.1.9, kt\u00f3ry umo\u017cliwia uruchamianie X.Org Server w celu realizacji aplikacji X11 w \u015brodowiskach opartych na Wayland. W nowych wersjach usuni\u0119to 3 luki w zabezpieczeniach, kt\u00f3rym nadano poziom zagro\u017cenia 7.8 w skali 10. Problemy mog\u0105 potencjalnie by\u0107 wykorzystywane do podniesienia uprawnie\u0144 w systemach, w kt\u00f3rych serwer X dzia\u0142a z uprawnieniami root, a tak\u017ce do zdalnego wykonywania kodu w konfiguracjach, w kt\u00f3rych dost\u0119p uzyskuje si\u0119 poprzez przekierowanie sesji X11 za pomoc\u0105 SSH.       <\/p>\n<p>Usuni\u0119te luki w zabezpieczeniach:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2025-62229 \u2014 odwo\u0142anie do pami\u0119ci po jej zwolnieniu w kodzie tworzenia struktury XPresentNotify. Problem objawia si\u0119 w realizacji rozszerzenia X11 Present i prowadzi do pozostawienia wska\u017anika na usuni\u0119ty obiekt present_notify w przypadku wyst\u0105pienia b\u0142\u0119du podczas przetwarzania i dodawania powiadomie\u0144 po przedstawieniu mapy pikseli. Wra\u017cliwo\u015b\u0107 pojawia si\u0119 od wydania Xorg 1.15 (2013 rok).\n<li class=\"l\"> CVE-2025-62230 \u2014 odwo\u0142anie do pami\u0119ci po jej zwolnieniu podczas usuwania w Xkb zasob\u00f3w dla klienta. Funkcja XkbRemoveResourceClient() zwalnia\u0142a pami\u0119\u0107 przydzielon\u0105 dla danych XkbInterest, zwi\u0105zanych z urz\u0105dzeniem, ale pozostawia\u0142a zasoby z nim powi\u0105zane. Wra\u017cliwo\u015b\u0107 pojawia si\u0119 od wydania X11R6 (1994 rok).\n<li class=\"l\"> CVE-2025-62231 \u2014 przepe\u0142nienie warto\u015bci ca\u0142kowitej w rozszerzeniu Xkb. W strukturze XkbCompatMap warto\u015bci przechowywane by\u0142y jako \u201aunsigned short\u2019, ale nie by\u0142y sprawdzane pod k\u0105tem tego, \u017ce warto\u015b\u0107 wej\u015bciowa mo\u017ce przekracza\u0107 g\u00f3rn\u0105 granic\u0119 tego typu. Wra\u017cliwo\u015b\u0107 pojawia si\u0119 od wydania X11R6 (1994 rok).     <\/ul>\n<p>Na gor\u0105co opracowano poprawk\u0119 do X.Org Server 21.1.20, w kt\u00f3rej rozwi\u0105zano problem, przez kt\u00f3ry wyst\u0119powa\u0142 b\u0142\u0105d podczas budowania przy u\u017cyciu systemu budowania Meson.<br \/>\n<br \/>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64138\">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 21.1.19 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 24.1.9, \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 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f X11-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0432 \u043e\u043a\u0440\u0443\u0436\u0435\u043d\u0438\u044f\u0445 \u043d\u0430 \u0431\u0430\u0437\u0435 Wayland. \u0412 \u043d\u043e\u0432\u044b\u0445 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b 3 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 7.8 \u0438\u0437 10. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u0434\u043b\u044f \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044f \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0439 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0432 \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, [&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-146775","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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