{"id":112179,"date":"2023-12-13T09:10:17","date_gmt":"2023-12-13T07:10:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-x-org-server-21-1-10-s-ustraneniem-uyazvimostej-udalenie-podderzhki-ums-iz-yadra-linux"},"modified":"2023-12-13T09:10:17","modified_gmt":"2023-12-13T07:10:17","slug":"obnovlenie-x-org-server-21-1-10-s-ustraneniem-uyazvimostej-udalenie-podderzhki-ums-iz-yadra-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/obnovlenie-x-org-server-21-1-10-s-ustraneniem-uyazvimostej-udalenie-podderzhki-ums-iz-yadra-linux","title":{"rendered":"Aktualizace X.Org Server 21.1.10 s odstran\u011bn\u00edm zranitelnost\u00ed. Odstran\u011bn\u00ed podpory UMS z j\u00e1dra Linux.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Byly zve\u0159ejn\u011bny opravy X.Org Server 21.1.10 a DDX komponenty (Device-Dependent X) xwayland 23.2.3, kter\u00e1 umo\u017e\u0148uje spu\u0161t\u011bn\u00ed X.Org Server pro organizaci b\u011bhu aplikac\u00ed X11 v prost\u0159ed\u00edch zalo\u017een\u00fdch na Waylandu. V nov\u00fdch verz\u00edch byly odstran\u011bny dv\u011b zranitelnosti. Prvn\u00ed zranitelnost m\u016f\u017ee b\u00fdt vyu\u017eita k z\u00edsk\u00e1n\u00ed vy\u0161\u0161\u00edch opr\u00e1vn\u011bn\u00ed v syst\u00e9mech, kde X-server b\u011b\u017e\u00ed s pr\u00e1vy root, a tak\u00e9 pro vzd\u00e1len\u00e9 spu\u0161t\u011bn\u00ed k\u00f3du v konfigurac\u00edch, kde je p\u0159\u00edstup realizov\u00e1n pomoc\u00ed p\u0159esm\u011brov\u00e1n\u00ed relace X11 pomoc\u00ed SSH.       <\/p>\n<p>Identifikovan\u00e9 probl\u00e9my:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2023-6377 \u2014 p\u0159ete\u010den\u00ed vyrovn\u00e1vac\u00ed pam\u011bti v zpracovateli tla\u010d\u00edtek XKB, ke kter\u00e9mu doch\u00e1z\u00ed p\u0159i p\u0159ep\u00edn\u00e1n\u00ed logick\u00e9ho vstupn\u00edho za\u0159\u00edzen\u00ed (nap\u0159\u00edklad p\u0159i p\u0159epnut\u00ed z touchpadu na my\u0161) kv\u016fli nespr\u00e1vn\u00e9mu v\u00fdpo\u010dtu informac\u00ed o za\u0159\u00edzen\u00ed. X-server p\u0159id\u011bloval pam\u011b\u0165 pouze na zpracovatele jednoho tla\u010d\u00edtka XKB, ani\u017e by bral v \u00favahu skute\u010dn\u00fd po\u010det tla\u010d\u00edtek na nov\u00e9m za\u0159\u00edzen\u00ed. V d\u016fsledku toho vedl po\u017eadavek na zm\u011bnu zpracovatel\u016f tla\u010d\u00edtek XKB k z\u00e1pisu dat do oblasti mimo vyrovn\u00e1vac\u00ed pam\u011b\u0165. Probl\u00e9m se projevuje od vyd\u00e1n\u00ed xorg-server-1.6.0 (rok 2009).\n<li class=\"l\"> CVE-2023-6478 \u2014 p\u0159ete\u010den\u00ed celo\u010d\u00edseln\u00e9 prom\u011bnn\u00e9, ke kter\u00e9mu doch\u00e1z\u00ed p\u0159i odes\u00edl\u00e1n\u00ed speci\u00e1ln\u011b form\u00e1tovan\u00fdch po\u017eadavk\u016f RRChangeProviderProperty a RRChangeOutputProperty. Zranitelnost m\u016f\u017ee v\u00e9st ke \u010dten\u00ed dat z oblasti mimo vyrovn\u00e1vac\u00ed pam\u011b\u0165 a \u00faniku informac\u00ed z pam\u011bti procesu. Probl\u00e9m je zp\u016fsoben pou\u017eit\u00edm 32bitov\u00e9ho typu int ve prom\u011bnn\u00e9 pro v\u00fdpo\u010det velikosti, kter\u00fd m\u016f\u017ee b\u00fdt p\u0159ete\u010den p\u0159i p\u0159enosu velk\u00e9ho po\u017eadavku. Probl\u00e9my se projevuj\u00ed od verz\u00ed xorg-server-1.4.0 (rok 2004) a xorg-server-1.13.0 (rok 2012).      <\/ul>\n<p>D\u00e1le lze zm\u00ednit n\u00e1vrh na odstran\u011bn\u00ed ioctl vol\u00e1n\u00ed s podporou UMS (Userspace Mode-Setting) z v\u011btve linux-next, ve kter\u00e9 se vyv\u00edjej\u00ed zm\u011bny pro j\u00e1dro Linux 6.8. Rozhran\u00ed UMS je ur\u010deno pro p\u0159ep\u00edn\u00e1n\u00ed video re\u017eim\u016f na \u00farovni u\u017eivatelsk\u00e9ho prostoru a bylo pou\u017e\u00edv\u00e1no ve velmi star\u00fdch ovlada\u010d\u00edch, jejich\u017e podpora byla ukon\u010dena. Ovlada\u010de poskytuj\u00edc\u00ed rozhran\u00ed UMS byly ozna\u010deny za zastaral\u00e9 v roce 2016 a byly odstran\u011bny v j\u00e1d\u0159e verze 6.3.      <\/p>\n<p>Konkr\u00e9tn\u011b v j\u00e1d\u0159e 6.3 byly odstran\u011bny ovlada\u010de i810 (star\u00e9 integrovan\u00e9 grafick\u00e9 karty Intel 8xx), mga (Matrox GPU), r128 (ATI Rage 128 GPU, v\u010detn\u011b karet Rage Fury, XPERT 99 a XPERT 128), savage (S3 Savage GPU), sis (Crusty SiS GPU), tdfx (3dfx Voodoo) a via (VIA IGP). Vzhledem k tomu, \u017ee od odstran\u011bn\u00ed t\u011bchto ovlada\u010d\u016f nebyly z\u00edsk\u00e1ny \u017e\u00e1dn\u00e9 \u017e\u00e1dosti o jejich n\u00e1vrat, v j\u00e1d\u0159e 6.8 se rozhodlo odstranit prvky infrastruktury UMS, kter\u00e9 byly v t\u011bchto ovlada\u010d\u00edch pou\u017e\u00edv\u00e1ny. Aktu\u00e1ln\u00ed ovlada\u010de byly d\u00e1vno p\u0159evedeny na p\u0159ep\u00edn\u00e1n\u00ed grafick\u00fdch re\u017eim\u016f prost\u0159ednictv\u00edm rozhran\u00ed KMS (Kernel Mode Setting).<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60280\">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 21.1.10 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 23.2.3, \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 \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438. \u041f\u0435\u0440\u0432\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \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 [&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-112179","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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Odstran\u011bn\u00ed podpory UMS z j\u00e1dra Linux | ProHoster","description":"Byly vyd\u00e1ny opravy X.Org Server 21.1.10 a DDX komponenty (Device-Dependent X) xwayland 23.2.3, kter\u00e1 zaji\u0161\u0165uje spu\u0161t\u011bn\u00ed X.Org Server pro organizaci prov\u00e1d\u011bn\u00ed X11 aplikac\u00ed v prost\u0159ed\u00edch zalo\u017een\u00fdch na.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/obnovlenie-x-org-server-21-1-10-s-ustraneniem-uyazvimostej-udalenie-podderzhki-ums-iz-yadra-linux","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","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 21.1.10 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u0423\u0434\u0430\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 UMS \u0438\u0437 \u044f\u0434\u0440\u0430 Linux | ProHoster","og:description":"\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 21.1.10 \u0438 DDX-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 (Device-Dependent X) xwayland 23.2.3, \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.","og:url":"https:\/\/prohoster.info\/cs\/blog\/news\/obnovlenie-x-org-server-21-1-10-s-ustraneniem-uyazvimostej-udalenie-podderzhki-ums-iz-yadra-linux","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":"2023-12-13T07:10:17+00:00","article:modified_time":"2023-12-13T07:10:17+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/112179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/comments?post=112179"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/112179\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=112179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=112179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=112179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}