Byly zve\u0159ejn\u011bny informace o p\u011bti zranitelnostech v knihovn\u00e1ch libX11 a libXpm, kter\u00e9 vyv\u00edj\u00ed projekt X.Org. Probl\u00e9my byly opraveny ve verz\u00edch libXpm 3.5.17 a libX11 1.8.7. T\u0159i zranitelnosti byly nalezeny v knihovn\u011b libx11, kter\u00e1 nab\u00edz\u00ed funkce s klientskou implementac\u00ed protokolu X11: <\/p>\n
Krom\u011b toho byly odhaleny dv\u011b zranitelnosti v knihovn\u011b libXpm (CVE-2023-43788 a CVE-2023-43789), kter\u00e9 jsou zp\u016fsobeny mo\u017enost\u00ed \u010dten\u00ed z oblast\u00ed mimo hranice vyhrazen\u00e9 pam\u011bti. Probl\u00e9my se projevuj\u00ed p\u0159i na\u010d\u00edt\u00e1n\u00ed koment\u00e1\u0159e z bufferu v pam\u011bti a zpracov\u00e1n\u00ed XPM-souboru s neplatnou barevnou mapou. Ob\u011b zranitelnosti poch\u00e1z\u00ed z roku 1998 a byly nalezeny d\u00edky pou\u017eit\u00ed n\u00e1stroj\u016f k odhalov\u00e1n\u00ed chyb v pr\u00e1ci s pam\u011bt\u00ed a fuzzingov\u00e9mu testov\u00e1n\u00ed AddressSanitizer a libFuzzer. <\/p>\n
X.org m\u00e1 historick\u00e9 probl\u00e9my se zabezpe\u010den\u00edm, nap\u0159\u00edklad deset let zp\u011bt, na 30. konferenci Chaos Communication Congress (CCC) byla polovina prezentace v\u011bnov\u00e1na probl\u00e9m\u016fm v ... serveru<\/a> X.Org a druh\u00e1 polovina bezpe\u010dnosti klientsk\u00fdch knihoven X11. V zpr\u00e1v\u011b Ilji, kter\u00fd v roce 2013 odhalil 30 zranitelnost\u00ed t\u00fdkaj\u00edc\u00edch se r\u016fzn\u00fdch klientsk\u00fdch knihoven X11 a tak\u00e9 komponent DRI Mesa, byly p\u0159\u00edtomny takov\u00e9 emocion\u00e1ln\u00ed v\u00fdrazy jako \u201eGLX \u2014 to je hrozn\u00fd demotiv\u00e1tor! 80 000 \u0159\u00e1dk\u016f \u010dist\u00e9ho d\u011bsu!\u201c a \u201eB\u011bhem posledn\u00edch n\u011bkolika m\u011bs\u00edc\u016f jsem v n\u011bm na\u0161el 120 chyb a je\u0161t\u011b jsem neskon\u010dil s kontrolou\u201c. \u041e\u0431\u043d\u0430\u0440\u043e\u0434\u043e\u0432\u0430\u043d\u0430 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e \u043f\u044f\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u0445 libX11 \u0438 libXpm, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u044b\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u043c X.Org. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 libXpm 3.5.17 \u0438 libX11 1.8.7. \u0422\u0440\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b \u0432 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0435 libx11, \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0441 \u043a\u043b\u0438\u0435\u043d\u0442\u0441\u043a\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 X11: CVE-2023-43785 — \u0432\u044b\u0445\u043e\u0434 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u044b \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043a\u043e\u0434\u0435 libX11, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0438\u0439\u0441\u044f \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043e\u0442\u0432\u0435\u0442\u0430 \u043e\u0442 X-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0441 \u0447\u0438\u0441\u043b\u043e\u043c \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432, \u043d\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 […]<\/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-110740","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\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\udd47Zranitelnosti v knihovn\u00e1ch X.Org, dv\u011b z nich\u017e jsou p\u0159\u00edtomny od roku 1988 | ProHoster","description":"Byly zve\u0159ejn\u011bny informace o p\u011bti zranitelnostech v knihovn\u00e1ch libX11 a libXpm vyv\u00edjen\u00fdch projektem X.Org. 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Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"