{"id":99182,"date":"2021-02-17T22:22:46","date_gmt":"2021-02-17T20:22:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-openssl-1-1-1j-wolfssl-4-7-0-i-libressl-3-2-4"},"modified":"2021-02-17T22:22:46","modified_gmt":"2021-02-17T20:22:46","slug":"obnovlenie-openssl-1-1-1j-wolfssl-4-7-0-i-libressl-3-2-4","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/obnovlenie-openssl-1-1-1j-wolfssl-4-7-0-i-libressl-3-2-4","title":{"rendered":"Actualizaci\u00f3n de OpenSSL 1.1.1j, wolfSSL 4.7.0 y LibreSSL 3.2.4","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Se ha lanzado una versi\u00f3n de correcci\u00f3n de la biblioteca criptogr\u00e1fica OpenSSL 1.1.1j, que resuelve dos vulnerabilidades:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-23841 \u2014 desreferencia de puntero nulo en la funci\u00f3n X509_issuer_and_serial_hash(), que podr\u00eda causar el bloqueo de aplicaciones que llaman a esta funci\u00f3n para procesar certificados X509 con un valor incorrecto en el campo issuer.\n<li class=\"l\"> CVE-2021-23840 \u2014 desbordamiento de enteros en las funciones EVP_CipherUpdate, EVP_EncryptUpdate y EVP_DecryptUpdate, que puede dar como resultado el retorno del valor 1, que indica la ejecuci\u00f3n exitosa de la operaci\u00f3n, y establecer un valor negativo con tama\u00f1o, lo que podr\u00eda llevar al bloqueo de aplicaciones o al comportamiento an\u00f3malo.\n<li class=\"l\"> CVE-2021-23839 \u2014 falta en la implementaci\u00f3n de la protecci\u00f3n contra la reversi\u00f3n al uso del protocolo SSLv2. Se manifiesta solo en la rama antigua 1.0.2.      <\/ul>\n<p>Tambi\u00e9n se ha publicado la versi\u00f3n del paquete LibreSSL 3.2.4, en la cual el proyecto OpenBSD desarrolla un fork de OpenSSL enfocado en proporcionar un mayor nivel de seguridad. Este lanzamiento se destaca por volver a utilizar el antiguo c\u00f3digo de verificaci\u00f3n de certificados usado en LibreSSL 3.1.x, debido a que algunos programas fallaban con enlaces dise\u00f1ados para eludir errores en el c\u00f3digo antiguo. Entre las novedades se destaca la adici\u00f3n de implementaciones de los componentes exporter y autochain en TLSv1.3.    <\/p>\n<p>Adem\u00e1s, se ha lanzado una nueva versi\u00f3n de la biblioteca criptogr\u00e1fica compacta wolfSSL 4.7.0, optimizada para su uso en dispositivos integrados con recursos limitados de CPU y memoria, como dispositivos de Internet de las cosas, sistemas de hogar inteligente, sistemas de informaci\u00f3n automotriz, enrutadores y tel\u00e9fonos m\u00f3viles. El c\u00f3digo est\u00e1 escrito en C y se distribuye bajo la licencia GPLv2.      <\/p>\n<p>La nueva versi\u00f3n implementa soporte para RFC 5705 (Exportadores de Material de Clave para TLS) y S\/MIME (Extensiones de Correo Internet Seguro\/M\u00faltiples Prop\u00f3sitos). Se ha a\u00f1adido la bandera \u00ab\u2014enable-reproducible-build\u00bb para garantizar compilaciones reproducibles. Se han a\u00f1adido las API SSL_get_verify_mode, API X509_VERIFY_PARAM y X509_STORE_CTX para la capa de compatibilidad con OpenSSL. Se ha implementado el macro WOLFSSL_PSK_IDENTITY_ALERT. Se ha a\u00f1adido una nueva funci\u00f3n _CTX_NoTicketTLSv12 para deshabilitar los tickets de sesi\u00f3n TLS 1.2, pero mantenerlos para TLS 1.3.<br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54601\">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 1.1.1j, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2021-23841 &#8212; \u0440\u0430\u0437\u044b\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0443\u043b\u0435\u0432\u043e\u0433\u043e \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f \u0432 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 X509_issuer_and_serial_hash(), \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u043a\u0440\u0430\u0445\u0443 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u0432\u044b\u0437\u044b\u0432\u0430\u044e\u0449\u0438\u0445 \u0434\u0430\u043d\u043d\u0443\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0441\u0435\u0440\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0432 X509 \u0441 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u044b\u043c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435\u043c \u0432 \u043f\u043e\u043b\u0435 issuer. CVE-2021-23840 &#8212; \u0446\u0435\u043b\u043e\u0447\u0438\u0441\u043b\u0435\u043d\u043d\u043e\u0435 \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0432 \u0444\u0443\u043d\u043a\u0446\u0438\u044f\u0445 EVP_CipherUpdate, EVP_EncryptUpdate \u0438 EVP_DecryptUpdate, \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u043c \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0432\u043e\u0437\u0432\u0440\u0430\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f [&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-99182","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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