{"id":137738,"date":"2025-06-21T11:12:23","date_gmt":"2025-06-21T09:12:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-18-s-ustraneniem-6-uyazvimostej"},"modified":"2025-06-21T11:12:23","modified_gmt":"2025-06-21T09:12:23","slug":"obnovlenie-x-org-server-21-1-18-s-ustraneniem-6-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/obnovlenie-x-org-server-21-1-18-s-ustraneniem-6-uyazvimostej","title":{"rendered":"Actualizaci\u00f3n de X.Org Server 21.1.18 con correcci\u00f3n de 6 vulnerabilidades","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Se han publicado actualizaciones del servidor X.Org 21.1.17 y el componente DDX (X dependiente del dispositivo) xwayland 24.1.7, que permite el lanzamiento del servidor X.Org para la ejecuci\u00f3n de aplicaciones X11 en entornos basados en Wayland. En la nueva versi\u00f3n del servidor X.Org se han corregido 6 vulnerabilidades. Estos problemas pueden ser explotados potencialmente para elevar privilegios en sistemas donde el servidor X se ejecuta con derechos de root, as\u00ed como para la ejecuci\u00f3n remota de c\u00f3digo en configuraciones donde el acceso utiliza la redirecci\u00f3n de sesi\u00f3n X11 a trav\u00e9s de SSH.     <\/p>\n<p>Vulnerabilidades detectadas:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2025-49176 \u2014 desbordamiento de enteros que provoca corrupci\u00f3n de memoria en la implementaci\u00f3n de la extensi\u00f3n Big Requests, que permite enviar solicitudes que superan los 64 kilobytes. La vulnerabilidad se manifiesta desde el lanzamiento de X11R6.0 (1994).\n<li class=\"l\"> CVE-2025-49179 \u2014 desbordamiento de enteros que provoca corrupci\u00f3n de memoria en la implementaci\u00f3n de la extensi\u00f3n X Record, que ocurre al enviar valores demasiado grandes para el n\u00famero de clientes o rangos. La vulnerabilidad se manifiesta desde el lanzamiento de X11R6.1 (1996).\n<li class=\"l\">  CVE-2025-49180 \u2014 desbordamiento de enteros que provoca corrupci\u00f3n de memoria en la implementaci\u00f3n de la extensi\u00f3n RandR. La vulnerabilidad se manifiesta desde el lanzamiento de 1.13 RC1 (2012).\n<li class=\"l\"> CVE-2025-49178 \u2014 posibilidad de crear una situaci\u00f3n que bloquea las solicitudes de otros clientes. La vulnerabilidad se manifiesta desde el lanzamiento de Xorg 1.10.0.\n<li class=\"l\"> CVE-2025-49175 \u2014 lectura de memoria fuera de los l\u00edmites del b\u00fafer en la extensi\u00f3n X Rendering, que ocurre al realizar operaciones con cursores animados. La vulnerabilidad se manifiesta desde el lanzamiento de XFree86 4.3.0 (2003).\n<li class=\"l\"> CVE-2025-49177 \u2014 fuga de datos en la implementaci\u00f3n de la extensi\u00f3n XFIXES, provocada por la falta de verificaci\u00f3n del tama\u00f1o de la solicitud del cliente en el controlador XFixesSetClientDisconnectMode (el cliente puede enviar una solicitud m\u00e1s corta y leer datos de una solicitud anterior). La vulnerabilidad se manifiesta desde el lanzamiento de Xorg Server 21.1 RC1 (2021).              <\/ul>\n<p>Adici\u00f3n: Se han formado actualizaciones del servidor X.Org 21.1.18 y xwayland 24.1.8, que incluyen cambios adicionales para corregir la vulnerabilidad CVE-2025-49176.<br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63423\">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 21.1.17 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 24.1.7, \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0437\u0430\u043f\u0443\u0441\u043a X.Org 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