{"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\/nl\/blog\/news\/obnovlenie-x-org-server-21-1-18-s-ustraneniem-6-uyazvimostej","title":{"rendered":"X.Org Server 21.1.18-update met de oplossing voor 6 kwetsbaarheden","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Er zijn correcties uitgebracht voor X.Org Server 21.1.17 en de DDX-component (Device-Dependent X) xwayland 24.1.7, die de werking van X.Org Server mogelijk maken voor het uitvoeren van X11-applicaties in omgevingen gebaseerd op Wayland. In de nieuwe versie van X.Org Server zijn 6 kwetsbaarheden verholpen. Deze problemen kunnen mogelijk worden misbruikt om privileges te verhogen in systemen waar de X-server wordt uitgevoerd met root-rechten, evenals voor het uitvoeren van code op afstand in configuraties waarbij toegang wordt verkregen via X11-sessieoverdracht via SSH.     <\/p>\n<p>Ge\u00efdentificeerde kwetsbaarheden:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2025-49176 \u2014 een integer overflow die leidt tot geheugenbeschadiging in de implementatie van de Big Requests-extensie, waarmee verzoeken kunnen worden verzonden die groter zijn dan 64 kilobyte. De kwetsbaarheid is aanwezig sinds de release van X11R6.0 (1994).\n<li class=\"l\"> CVE-2025-49179 \u2014 een integer overflow die leidt tot geheugenbeschadiging in de implementatie van de X Record-extensie, die optreedt bij het verzenden van te grote waarden voor het aantal cli\u00ebnten of reeksen. De kwetsbaarheid is aanwezig sinds de release van X11R6.1 (1996).\n<li class=\"l\">  CVE-2025-49180 \u2014 een integer overflow die leidt tot geheugenbeschadiging in de implementatie van de RandR-extensie. De kwetsbaarheid is aanwezig sinds de release van 1.13 RC1 (2012).\n<li class=\"l\"> CVE-2025-49178 \u2014 de mogelijkheid om een situatie te cre\u00ebren die leidt tot het blokkeren van verzoeken van andere cli\u00ebnten. De kwetsbaarheid is aanwezig sinds de release van Xorg 1.10.0.\n<li class=\"l\"> CVE-2025-49175 \u2014 lezen uit geheugen buiten de buffergrenzen in de X Rendering-extensie, dat optreedt bij het uitvoeren van bewerkingen met geanimeerde cursors. De kwetsbaarheid is aanwezig sinds de release van XFree86 4.3.0 (2003).\n<li class=\"l\"> CVE-2025-49177 \u2014 gegevenslek in de implementatie van de XFIXES-extensie, veroorzaakt door het ontbreken van een controle op de grootte van het verzoek van de cli\u00ebnt in de handler XFixesSetClientDisconnectMode (de cli\u00ebnt kan een korter verzoek verzenden en gegevens van het vorige verzoek lezen). De kwetsbaarheid is aanwezig sinds de release van Xorg Server 21.1 RC1 (2021).              <\/ul>\n<p>Aanvulling: Onmiddellijk zijn versies van X.Org Server 21.1.18 en xwayland 24.1.8 uitgebracht, met extra wijzigingen om de kwetsbaarheid CVE-2025-49176 te verhelpen.<br \/>\n<br \/>Bron: <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 Server 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