{"id":101089,"date":"2021-08-25T22:22:48","date_gmt":"2021-08-25T20:22:48","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-openssl-1-1-1l-s-ustraneniem-dvuh-uyazvimostej"},"modified":"2021-08-25T22:22:48","modified_gmt":"2021-08-25T20:22:48","slug":"obnovlenie-openssl-1-1-1l-s-ustraneniem-dvuh-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/obnovlenie-openssl-1-1-1l-s-ustraneniem-dvuh-uyazvimostej","title":{"rendered":"Actualizaci\u00f3n de OpenSSL 1.1.1l con la eliminaci\u00f3n de dos vulnerabilidades","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Est\u00e1 disponible una versi\u00f3n correctiva de la biblioteca criptogr\u00e1fica OpenSSL 1.1.1l que aborda dos vulnerabilidades:   <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-3711 \u2014 desbordamiento de b\u00fafer en el c\u00f3digo de implementaci\u00f3n del algoritmo criptogr\u00e1fico SM2 (com\u00fan en China), que permite, debido a un error en el c\u00e1lculo del tama\u00f1o del b\u00fafer, sobrescribir hasta 62 bytes en el \u00e1rea fuera del b\u00fafer. Un atacante potencialmente puede lograr la ejecuci\u00f3n de su c\u00f3digo o la ca\u00edda de la aplicaci\u00f3n a trav\u00e9s de la transmisi\u00f3n de datos espec\u00edficamente formateados para la decodificaci\u00f3n en aplicaciones que utilizan la funci\u00f3n EVP_PKEY_decrypt() para descifrar datos SM2.\n<li class=\"l\"> CVE-2021-3712 \u2014 desbordamiento de b\u00fafer en el c\u00f3digo de procesamiento de cadenas ASN.1, que puede causar la ca\u00edda de la aplicaci\u00f3n o revelar el contenido de la memoria del proceso (por ejemplo, para identificar claves almacenadas en memoria), si el atacante, de alguna manera, puede formar una cadena en la estructura interna ASN1_STRING que no termina con un car\u00e1cter nulo y procesarla en funciones de OpenSSL que generan certificados, como X509_aux_print(), X509_get1_email(), X509_REQ_get1_email() y X509_get1_ocsp().      <\/ul>\n<p>Al mismo tiempo, se han lanzado nuevas versiones de la biblioteca LibreSSL 3.3.4 y 3.2.6, que no mencionan expl\u00edcitamente las vulnerabilidades, pero seg\u00fan la lista de cambios, se ha solucionado la vulnerabilidad CVE-2021-3712.<br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55683\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL 1.1.1l \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0434\u0432\u0443\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: CVE-2021-3711 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 \u043a\u043e\u0434\u0435 \u0441 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u0430 SM2 (\u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0451\u043d \u0432 \u041a\u0438\u0442\u0430\u0435), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0435 \u0438\u0437-\u0437\u0430 \u043e\u0448\u0438\u0431\u043a\u0438 \u0432 \u0440\u0430\u0441\u0447\u0451\u0442\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0431\u0443\u0444\u0435\u0440\u0430 \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0434\u043e 62 \u0431\u0430\u0439\u0442 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0435\u0439 \u0431\u0443\u0444\u0435\u0440\u0430. \u0410\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0438\u043b\u0438 \u043a\u0440\u0430\u0445\u0430 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u0447\u0435\u0440\u0435\u0437 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0439 \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 [&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-101089","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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desbordamiento de b\u00fafer en el c\u00f3digo que implementa el algoritmo criptogr\u00e1fico SM2.","canonical_url":"https:\/\/prohoster.info\/es\/blog\/news\/obnovlenie-openssl-1-1-1l-s-ustraneniem-dvuh-uyazvimostej","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"es_ES","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 OpenSSL 1.1.1l \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0434\u0432\u0443\u0445 \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 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 OpenSSL 1.1.1l \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0434\u0432\u0443\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439: CVE-2021-3711 - 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