{"id":168785,"date":"2026-04-15T11:12:00","date_gmt":"2026-04-15T09:12:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-22-s-ustraneniem-5-uyazvimostej"},"modified":"2026-04-15T11:12:00","modified_gmt":"2026-04-15T09:12:00","slug":"obnovlenie-x-org-server-21-1-22-s-ustraneniem-5-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/obnovlenie-x-org-server-21-1-22-s-ustraneniem-5-uyazvimostej","title":{"rendered":"Atualiza\u00e7\u00e3o do X.Org Server 21.1.22 corrigindo 5 vulnerabilidades","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Foram publicadas atualiza\u00e7\u00f5es corretivas do X.Org Server 21.1.22 e do componente DDX (Device-Dependent X) xwayland 24.1.10, que possibilita a execu\u00e7\u00e3o do X.Org Server para a organiza\u00e7\u00e3o de aplicativos X11 em ambientes baseados em Wayland. As novas vers\u00f5es corrigem 5 vulnerabilidades. Algumas dessas vulnerabilidades podem ser potencialmente exploradas para eleva\u00e7\u00e3o de privil\u00e9gios em sistemas onde o servidor X \u00e9 executado com privil\u00e9gios de root, bem como para execu\u00e7\u00e3o remota de c\u00f3digo em configura\u00e7\u00f5es onde o acesso \u00e9 feito por meio do redirecionamento de sess\u00e3o X11 usando SSH.       <\/p>\n<p>Vulnerabilidades corrigidas:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2026-34001 \u2014 acesso \u00e0 mem\u00f3ria ap\u00f3s sua libera\u00e7\u00e3o (Use-after-free) na fun\u00e7\u00e3o miSyncTriggerFence(). A vulnerabilidade foi detectada a partir do lan\u00e7amento do xorg-server 1.9.0 (ano 2010).\n<li class=\"l\"> CVE-2026-33999 \u2014 overflow inteiro por limite inferior (underflow) na fun\u00e7\u00e3o XkbSetCompatMap(), resultando na leitura de dados fora do buffer ao processar requisi\u00e7\u00f5es especialmente formatadas. A vulnerabilidade foi detectada a partir do lan\u00e7amento do X11R6.6 (ano 2001).\n<li class=\"l\"> CVE-2026-34000 \u2014 leitura fora do buffer na fun\u00e7\u00e3o XkbAddGeomKeyAlias, causada pela falta de verifica\u00e7\u00e3o do tamanho do nome da tecla fornecido em rela\u00e7\u00e3o ao buffer alocado. A vulnerabilidade foi detectada a partir das vers\u00f5es xorg-server 21.1.4 e xwayland 22.1.3 (ano 2022).\n<li class=\"l\"> CVE-2026-34002 \u2014 leitura fora do buffer na fun\u00e7\u00e3o CheckModifierMap() devido \u00e0 aus\u00eancia de verifica\u00e7\u00e3o do n\u00famero de teclas especificadas na requisi\u00e7\u00e3o em rela\u00e7\u00e3o ao n\u00famero real de par\u00e2metros fornecidos. A vulnerabilidade foi detectada a partir do lan\u00e7amento do X11R6.6 (ano 2001).\n<li class=\"l\"> CVE-2026-34003 \u2014 overflow de buffer na fun\u00e7\u00e3o XKB CheckKeyTypes(), resultando na leitura de dados fora do buffer devido \u00e0 falta de verifica\u00e7\u00e3o do tamanho do buffer em rela\u00e7\u00e3o aos dados fornecidos na requisi\u00e7\u00e3o. A vulnerabilidade foi detectada a partir do lan\u00e7amento do X11R6.6 (ano 2001).    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65210\">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 21.1.22 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 24.1.10, \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 5 \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-168785","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b 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