{"id":104640,"date":"2022-07-12T21:36:50","date_gmt":"2022-07-12T19:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-4-s-ustraneniem-uyazvimostej"},"modified":"2022-07-12T21:36:50","modified_gmt":"2022-07-12T19:36:50","slug":"obnovlenie-x-org-server-21-1-4-s-ustraneniem-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/de\/blog\/news\/obnovlenie-x-org-server-21-1-4-s-ustraneniem-uyazvimostej","title":{"rendered":"Update X.Org Server 21.1.4 zur Behebung von Sicherheitsanf\u00e4lligkeiten","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Es steht ein Korrektur-Release von X.Org Server 21.1.4 zur Verf\u00fcgung, das zwei Schwachstellen in den Xkb-Extension-Handlern behebt. Diese Schw\u00e4chen erm\u00f6glichen es, die Privilegien im System zu erh\u00f6hen, wenn der X-Server mit Root-Rechten ausgef\u00fchrt wird, oder Code auf einem entfernten System auszuf\u00fchren, wenn der Zugriff \u00fcber die Umleitung einer X11-Sitzung mittels SSH erfolgt. Die Schwachstellen resultieren aus fehlender ordnungsgem\u00e4\u00dfer Gr\u00f6\u00dfenpr\u00fcfung in den Anfrage-Handlern ProcXkbSetGeometry (CVE-2022-2319) und ProcXkbSetDeviceInfo (CVE-2022-2320), die ausgenutzt werden k\u00f6nnen, um in den Speicherbereich au\u00dferhalb des zugewiesenen Puffers zu schreiben. <\/p>\n

Im Falle von ProcXkbSetGeometry fehlte eine \u00dcberpr\u00fcfung der Gr\u00f6\u00dfen der Anfragefelder, was es dem Kunden erm\u00f6glichte, ein \u00dcberlauf zu verursachen, indem er in der Anfrage eine Anzahl von Sektionen angab, die nicht mit den tats\u00e4chlich gesendeten Daten \u00fcbereinstimmte. Im Handler ProcXkbSetDeviceInfo wurde die Schwachstelle durch die falsche Reihenfolge der Funktionsaufrufe verursacht \u2013 die Funktion zur \u00dcberpr\u00fcfung der Parameter wurde nach der Funktion aufgerufen, in der diese Parameter verwendet wurden (die Funktionsnamen wurden verwechselt und die Funktion XkbSetDeviceInfo enthielt den Code zur \u00dcberpr\u00fcfung, w\u00e4hrend XkbSetDeviceInfoCheck f\u00fcr die Festlegung der Werte zust\u00e4ndig war).
\n
Quelle: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a X.Org Server 21.1.4, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u0445 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f Xkb, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u043f\u043e\u0434\u043d\u044f\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435, \u0435\u0441\u043b\u0438 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, \u0438\u043b\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043d\u0430 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u0435, \u0435\u0441\u043b\u0438 \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u0435\u0430\u043d\u0441\u0430 X11 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 SSH. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432\u044b\u0437\u0432\u0430\u043d\u044b \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 ProcXkbSetGeometry (CVE-2022-2319) \u0438 […]<\/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-104640","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Update von X.Org Server 21.1.4 zur Behebung von Schwachstellen | ProHoster","description":"Es steht ein Korrektur-Release von X.Org Server 21.1.4 zur Verf\u00fcgung, das zwei Schwachstellen in den Xkb-Extension-Handlern behebt, die es erm\u00f6glichen, die Privilegien im System zu erh\u00f6hen, wenn der X-Server mit Root-Rechten ausgef\u00fchrt wird, oder.","canonical_url":"https:\/\/prohoster.info\/de\/blog\/news\/obnovlenie-x-org-server-21-1-4-s-ustraneniem-uyazvimostej","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"de_DE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 X.Org Server 21.1.4 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 | ProHoster","og:description":"\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a X.Org Server 21.1.4, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u0445 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f Xkb, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0435 \u043f\u043e\u0434\u043d\u044f\u0442\u044c \u0441\u0432\u043e\u0438 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0435, \u0435\u0441\u043b\u0438 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, \u0438\u043b\u0438.","og:url":"https:\/\/prohoster.info\/de\/blog\/news\/obnovlenie-x-org-server-21-1-4-s-ustraneniem-uyazvimostej","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2022-07-12T19:36:50+00:00","article:modified_time":"2022-07-12T19:36:50+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"104640","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2022-07-12 19:37:57","updated":"2022-09-28 01:30:25","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/posts\/104640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/comments?post=104640"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/posts\/104640\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/media?parent=104640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/categories?post=104640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/de\/wp-json\/wp\/v2\/tags?post=104640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}