{"id":181859,"date":"2026-06-02T14:48:28","date_gmt":"2026-06-02T12:48:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-23-s-ustraneniem-9-uyazvimostej"},"modified":"2026-06-02T14:48:28","modified_gmt":"2026-06-02T12:48:28","slug":"obnovlenie-x-org-server-21-1-23-s-ustraneniem-9-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/obnovlenie-x-org-server-21-1-23-s-ustraneniem-9-uyazvimostej","title":{"rendered":"Actualizarea X.Org Server 21.1.23 cu corectarea a 9 vulnerabilit\u0103\u021bi","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Au fost publicate actualiz\u0103ri corective pentru X.Org Server 21.1.23 \u0219i componenta DDX (Device-Dependent X) xwayland 24.1.12, care permite rularea X.Org Server pentru implementarea aplica\u021biilor X11 \u00een medii bazate pe Wayland. \u00cen noile versiuni, au fost remediate 9 vulnerabilit\u0103\u021bi. Unele dintre aceste vulnerabilit\u0103\u021bi ar putea fi exploatate pentru a ob\u021bine privilegii ridicate \u00een sistemele \u00een care serverul X ruleaz\u0103 cu drepturi root, precum \u0219i pentru executarea de cod de la distan\u021b\u0103 \u00een configura\u021biile \u00een care accesul se face prin redirec\u021bionarea sesiunii X11 utiliz\u00e2nd SSH. <\/p>\n<p>Vulnerabilit\u0103\u021bi remediate (identificatori CVE neatribui\u021bi): <\/p>\n<ul>\n<li class=\"l\"> Dep\u0103\u0219irea buffer-ului \u00een procesarea denumirilor alternative ale fonturilor. Problema este cauzat\u0103 de diferitele limit\u0103ri ale dimensiunii numelui fontului \u00een biblioteca libXfont2 \u0219i serverul X \u2014 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/\" title=\"serverul\" data-wpil-keyword-link=\"linked\">serverul<\/a> alloca 256 de octe\u021bi pentru nume, \u00een timp ce biblioteca permitea transmiterea de nume cu dimensiuni de p\u00e2n\u0103 la 1024 de octe\u021bi.\n<li class=\"l\">  Accesarea memoriei dup\u0103 eliberare \u00een func\u021biile miSyncDestroyFence(), FreeCounter() \u0219i SyncChangeCounter() din cauza erorilor de actualizare a num\u0103r\u0103toarelor de referin\u021b\u0103.\n<li class=\"l\"> Dep\u0103\u0219irea buffer-ului \u00een XKB, care apare \u00een timpul proces\u0103rii anumitor tipuri de taste din cauza calcul\u0103rii gre\u0219ite a dimensiunii tabelului codurilor simbolurilor.\n<li class=\"l\"> Dep\u0103\u0219irea buffer-ului \u00een XKB, care apare \u00een timpul proces\u0103rii cererilor SetMap din lipsa unei verific\u0103ri adecvate a dimensiunii datelor transmise de client.\n<li class=\"l\"> Scrierea \u0219i citirea datelor \u00een afara limitelor buffer-ului \u00een GLX din cauza verific\u0103rii incorecte a dimensiunii atributelor primite de la utilizator \u00een func\u021bia ChangeDrawableAttributes.\n<li class=\"l\"> Accesarea memoriei dup\u0103 eliberare, care apare dup\u0103 modificarea atributelor feronului \u0219i for\u021barea apelului la protec\u021bia ecranului. Problema ar putea conduce la scurgeri de date din memoria procesului.\n<li class=\"l\"> Scrierea \u00een memorie dincolo de buffer-ul alocat \u00een func\u021biile DRI2 DRIGetBuffers \u0219i DRIGetBuffersWithFormat, care apare c\u00e2nd se solicit\u0103 mai multe instan\u021be ale DRI2BufferBackLeft, dar o singur\u0103 instan\u021b\u0103 a DRI2BufferFrontLeft.<br \/>\n<br \/>Sursa: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65600\">opennet.ro<\/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 21.1.23 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 24.1.12, \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 9 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \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, \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 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181859","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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 21.1.23 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 24.1.12, \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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