Foi divulgada a informa\u00e7\u00e3o sobre cinco vulnerabilidades nas bibliotecas libX11 e libXpm, desenvolvidas pelo projeto X.Org. Os problemas foram corrigidos nas vers\u00f5es libXpm 3.5.17 e libX11 1.8.7. Tr\u00eas vulnerabilidades foram identificadas na biblioteca libX11, que oferece fun\u00e7\u00f5es com uma implementa\u00e7\u00e3o do protocolo X11: <\/p>\n
Al\u00e9m disso, foram reveladas duas vulnerabilidades na biblioteca libXpm (CVE-2023-43788 e CVE-2023-43789), causadas pela possibilidade de leitura de \u00e1reas fora dos limites da mem\u00f3ria alocada. Os problemas ocorrem ao carregar um coment\u00e1rio de um buffer na mem\u00f3ria e processar um arquivo XPM com um mapa de cores incorreto. Ambas as vulnerabilidades datam de 1998 e foram encontradas gra\u00e7as \u00e0 aplica\u00e7\u00e3o de ferramentas para detec\u00e7\u00e3o de erros na manipula\u00e7\u00e3o de mem\u00f3ria e testes de fuzzing com AddressSanitizer e libFuzzer. <\/p>\n
O X.org tem problemas hist\u00f3ricos de seguran\u00e7a; por exemplo, h\u00e1 dez anos, na 30\u00aa Confer\u00eancia Chaos Communication Congress (CCC), na apresenta\u00e7\u00e3o do pesquisador de seguran\u00e7a Ilja van Sprundel, metade da apresenta\u00e7\u00e3o foi dedicada a problemas na servidor<\/a> X.Org, e a outra metade da seguran\u00e7a das bibliotecas cliente X11. No relat\u00f3rio de Ilya, que revelou 30 vulnerabilidades afetando v\u00e1rias bibliotecas cliente X11, bem como componentes DRI do Mesa, havia declara\u00e7\u00f5es emocionais como \u201cGLX \u2014 \u00e9 um desmotivador horr\u00edvel! 80.000 linhas de puro terror!\u201d e \u201cNos \u00faltimos meses, encontrei 120 bugs nele, e ainda n\u00e3o terminei a verifica\u00e7\u00e3o.\u201d \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\udd47Vulnerabilidades nas bibliotecas X.Org, duas das quais existem desde 1988 | ProHoster","description":"Foi divulgada a informa\u00e7\u00e3o sobre cinco vulnerabilidades nas bibliotecas libX11 e libXpm, desenvolvidas pelo projeto X.Org. 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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"