{"id":90513,"date":"2020-08-02T01:42:20","date_gmt":"2020-08-01T23:42:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-x-org-server-i-libx11"},"modified":"2020-12-03T09:15:07","modified_gmt":"2020-12-03T07:15:07","slug":"uyazvimosti-v-x-org-server-i-libx11","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/uyazvimosti-v-x-org-server-i-libx11","title":{"rendered":"Sicherheitsanf\u00e4lligkeiten in X.Org Server und libX11","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>In X.Org Server und libX11 wurden festgestellt <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/xorg-announce@lists.x.org\/msg01260.html\">zwei<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/xorg-announce@lists.x.org\/msg01259.html\">von Schwachstellen<\/a><\/noindex>:<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-14347\">CVE-2020-14347<\/a><\/noindex> \u2014 Die fehlende Initialisierung des Speichers bei der Zuweisung von Buffern f\u00fcr Pixmaps durch den Aufruf von AllocatePixmap() kann dazu f\u00fchren, dass der X-Client Inhalte aus dem Heap verliert, wenn der X-Server mit erh\u00f6hten Rechten arbeitet. Diese Art des Lecks kann genutzt werden, um die Adressraum-Randomisierungstechnologie (ASLR) zu umgehen. In Kombination mit anderen Schwachstellen kann das Problem verwendet werden, um einen Exploit zur Erh\u00f6hung der Berechtigungen im System zu erstellen. Korrekturen sind derzeit in Form von Patches verf\u00fcgbar.<br \/>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/xorg.freedesktop.org\/archive\/individual\/xserver\/\">Ver\u00f6ffentlichung<\/a><\/noindex>  eines korrigierenden Releases von X.Org Server 1.20.9 wird in den kommenden Tagen erwartet.<\/li>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-14344\">CVE-2020-14344<\/a><\/noindex> \u2014 Ganzzahl\u00fcberlauf in der Implementierung von XIM (Eingabemethode) in libX11, der zu Besch\u00e4digungen von Speicherbereichen im Heap f\u00fchren kann, wenn speziell formatierte Nachrichten von der Eingabemethode verarbeitet werden.<br \/>\nDas Problem wurde in der Version <noindex><a rel=\"nofollow\" href=\"https:\/\/www.mail-archive.com\/xorg-announce@lists.x.org\/msg01261.html\">libX11 1.6.10<\/a><\/noindex>.<\/li>\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Quelle: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53470\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 X.Org Server \u0438 libX11 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2020-14347 &#8212; \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435 \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u0440\u0438 \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u0438\u0438 \u0431\u0443\u0444\u0435\u0440\u043e\u0432 \u0434\u043b\u044f \u043f\u0438\u043a\u0441\u0435\u043b\u044c\u043d\u044b\u0445 \u043a\u0430\u0440\u0442 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 \u0432\u044b\u0437\u043e\u0432\u0430 AllocatePixmap() \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0442\u0435\u0447\u043a\u0435 X-\u043a\u043b\u0438\u0435\u043d\u0442\u0443 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e \u043f\u0430\u043c\u044f\u0442\u0438 \u0438\u0437 \u043a\u0443\u0447\u0438, \u043a\u043e\u0433\u0434\u0430 X-\u0441\u0435\u0440\u0432\u0435\u0440 \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0441 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u043d\u044b\u043c\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u044f\u043c\u0438. \u0423\u043a\u0430\u0437\u0430\u043d\u043d\u0443\u044e \u0443\u0442\u0435\u0447\u043a\u0443 \u043c\u043e\u0436\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0434\u043b\u044f \u043e\u0431\u0445\u043e\u0434\u0430 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u0440\u0430\u043d\u0434\u043e\u043c\u0438\u0437\u0430\u0446\u0438\u0438 \u0430\u0434\u0440\u0435\u0441\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432 (ASLR). \u0412 \u0441\u043e\u0447\u0435\u0442\u0430\u043d\u0438\u0438 \u0441 \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u043c\u0438 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-90513","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 X.Org Server \u0438 libX11 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u0434\u0432\u0435\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta 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