{"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\/en\/blog\/news\/obnovlenie-x-org-server-21-1-9-i-xwayland-23-2-2-s-ustraneniem-uyazvimostej","title":{"rendered":"Update X.Org Server 21.1.9 and xwayland 23.2.2 with vulnerability fixes","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Corrective releases of X.Org Server 21.1.9 and the DDX component (Device-Dependent X) xwayland 22.2.2 have been published, enabling the launch of X.Org Server for executing X11 applications in Wayland-based environments. The new versions fix vulnerabilities that could potentially be exploited for privilege escalation in systems where the X server runs with root privileges, as well as for remote code execution in configurations using X11 session forwarding via SSH.       <\/p>\n<p>Identified issues:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2023-5367 \u2014 a buffer overflow in the XIChangeDeviceProperty and RRChangeOutputProperty functions, which can be exploited by attaching additional elements to input device properties or randr properties. The vulnerability has existed since the release of xorg-server 1.4.0 (2007) and is caused by the calculation of an incorrect offset when attaching additional elements to existing properties, leading to elements being added with the wrong offset, resulting in a write outside the allocated buffer. For example, when attaching 3 elements to 5 existing elements, memory for an array of 8 elements will be allocated, but the previously existing elements will be stored in the new array starting from index 5 instead of 3, causing the last two elements to be written past the end of the buffer.\n<li class=\"l\"> CVE-2023-5380 \u2014 a use-after-free vulnerability in the DestroyWindow function. The issue can be exploited by moving the pointer between screens in multi-monitor configurations using the zaphod mode, where a separate screen is created for each monitor, and calling the function to close the client window. The vulnerability has existed since the release of xorg-server 1.7.0 (2009) and is caused by the fact that, after closing a window and freeing the associated memory, an active pointer to the previous window remains in the screen-binding structure. Xwayland is not affected by this vulnerability.\n<li class=\"l\"> CVE-2023-5574 \u2014 a use-after-free vulnerability in the DamageDestroy function. The vulnerability can be exploited in <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/en\/server\/dts-newyork\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2753\">server<\/a> Xvfb is clearing the structure ScreenRec during the server shutdown or disconnection of the last client. Like the previous vulnerability, the issue only manifests in multi-monitor configurations in Zaphod mode. The vulnerability has been present since the release of xorg-server-1.13.0 (2012) and remains unpatched (fix only available as a patch).  <\/ul>\n<p>In addition to fixing vulnerabilities in xwayland 23.2.2, there has also been a transition from the libbsd-overlay library to libbsd, and automatic connection to the RemoteDesktop XDG Desktop Portal interface for determining the socket used for sending XTest events has been discontinued. The automatic connection created problems when starting xwayland in a nested composite server, so in the new version, the option \"-enable-ei-portal\" must be explicitly specified for connecting to the portal. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/en\/server\/dts-shicago\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2929\">server<\/a> XTest events. Automatic connection created issues when starting Xwayland in a nested composite server, thus in the new version, it is necessary to explicitly specify the option \u2018-enable-ei-portal\u2019 to connect to the portal.<br \/>\n<br \/>Source: <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 \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 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \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 \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 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" 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