{"id":181859,"date":"2026-06-02T14:48:28","date_gmt":"2026-06-02T12:48:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-23-s-ustraneniem-9-uyazvimostej"},"modified":"2026-06-02T14:48:28","modified_gmt":"2026-06-02T12:48:28","slug":"obnovlenie-x-org-server-21-1-23-s-ustraneniem-9-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/obnovlenie-x-org-server-21-1-23-s-ustraneniem-9-uyazvimostej","title":{"rendered":"X.Org Server 21.1.23 friss\u00edt\u00e9se 9 sebezhet\u0151s\u00e9g jav\u00edt\u00e1s\u00e1val","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Megjelent a X.Org Server 21.1.23 \u00e9s a DDX komponens (Device-Dependent X) xwayland 24.1.12 jav\u00edt\u00f3 kiad\u00e1sa, amely lehet\u0151v\u00e9 teszi az X.Org Server elind\u00edt\u00e1s\u00e1t az X11 alkalmaz\u00e1sok futtat\u00e1s\u00e1hoz Wayland alap\u00fa k\u00f6rnyezetekben. Az \u00faj verzi\u00f3kban 9 sebezhet\u0151s\u00e9get sz\u00fcntettek meg. N\u00e9h\u00e1ny sebezhet\u0151s\u00e9g potenci\u00e1lisan kihaszn\u00e1lhat\u00f3 jogok emel\u00e9s\u00e9re olyan rendszerekben, ahol az X-server root jogokkal fut, valamint t\u00e1voli k\u00f3d v\u00e9grehajt\u00e1s\u00e1ra olyan konfigur\u00e1ci\u00f3kban, ahol az X11 munkamenet \u00e1tir\u00e1ny\u00edt\u00e1s\u00e1val SSH-n kereszt\u00fcl t\u00f6rt\u00e9nik a hozz\u00e1f\u00e9r\u00e9s. <\/p>\n<p>Jav\u00edtott sebezhet\u0151s\u00e9gek (CVE azonos\u00edt\u00f3k m\u00e9g nem lettek kijel\u00f6lve): <\/p>\n<ul>\n<li class=\"l\"> Puffer t\u00falcsordul\u00e1s a bet\u0171t\u00edpusok alternat\u00edv neveinek feldolgoz\u00e1sa sor\u00e1n. A probl\u00e9ma a libXfont2 k\u00f6nyvt\u00e1r \u00e9s az X-server m\u00e9retkorl\u00e1toz\u00e1saib\u00f3l ad\u00f3dik \u2014 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/hu\/server\/\" title=\"szerver\" data-wpil-keyword-link=\"linked\">szerver<\/a> 256 byte-ot foglalt el n\u00e9vk\u00e9nt, m\u00edg a k\u00f6nyvt\u00e1r lehet\u0151v\u00e9 tette a legfeljebb 1024 byte m\u00e9ret\u0171 nevek \u00e1tad\u00e1s\u00e1t.\n<li class=\"l\">  Mem\u00f3ria hozz\u00e1f\u00e9r\u00e9sek felszabad\u00edt\u00e1s ut\u00e1n a miSyncDestroyFence(), FreeCounter() \u00e9s SyncChangeCounter() funkci\u00f3kban, a referencia sz\u00e1ml\u00e1l\u00f3k friss\u00edt\u00e9s\u00e9nek hib\u00e1i miatt.\n<li class=\"l\"> T\u00f6mb t\u00falcsordul\u00e1s bizonyos billenty\u0171t\u00edpusok XKB-ban val\u00f3 feldolgoz\u00e1sakor. A probl\u00e9ma az adatb\u00e1zis m\u00e9ret\u00e9nek rossz kisz\u00e1m\u00edt\u00e1s\u00e1b\u00f3l ad\u00f3dik.\n<li class=\"l\"> T\u00f6mb t\u00falcsordul\u00e1s az XKB-ben, amely a SetMap k\u00e9relmek feldolgoz\u00e1sa sor\u00e1n jelentkezik a kapott kliensadatok megfelel\u0151 m\u00e9retellen\u0151rz\u00e9s\u00e9nek hi\u00e1nya miatt.\n<li class=\"l\"> \u00cdr\u00e1s \u00e9s olvas\u00e1s a puffer hat\u00e1rain t\u00fal GLX-ben a funkci\u00f3ban l\u00e9v\u0151 felhaszn\u00e1l\u00f3t\u00f3l kapott attrib\u00fatumok m\u00e9ret\u00e9nek helytelen ellen\u0151rz\u00e9se miatt a ChangeDrawableAttributes funkci\u00f3ban.\n<li class=\"l\"> Mem\u00f3ria hozz\u00e1f\u00e9r\u00e9s a felszabad\u00edt\u00e1s ut\u00e1n, ami abban az esetben l\u00e9p fel, ha az ablak attrib\u00fatumait megv\u00e1ltoztatj\u00e1k \u00e9s a k\u00e9perny\u0151v\u00e9d\u0151 k\u00e9nyszer\u00edtett h\u00edv\u00e1s\u00e1t v\u00e9grehajtj\u00e1k. A probl\u00e9ma mem\u00f3ria tartalom sziv\u00e1rg\u00e1s\u00e1hoz vezethet a folyamatb\u00f3l.\n<li class=\"l\"> \u00cdr\u00e1s a lefoglalt pufferen k\u00edv\u00fcl a DRI2 DRIGetBuffers \u00e9s a DRIGetBuffersWithFormat f\u00fcggv\u00e9nyekben, amely a DRI2BufferBackLeft t\u00f6bb p\u00e9ld\u00e1ny\u00e1nak lek\u00e9rdez\u00e9sekor, de csak a DRI2BufferFrontLeft egy p\u00e9ld\u00e1ny\u00e1nak k\u00e9r\u00e9s\u00e9vel jelentkezik.<br \/>\n<br \/>Forr\u00e1s: <a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65600\">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 21.1.23 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 24.1.12, \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 9 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \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 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181859","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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 21.1.23 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 24.1.12, \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 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