{"id":169694,"date":"2026-04-21T18:24:39","date_gmt":"2026-04-21T16:24:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/libressl-4-3-0"},"modified":"2026-04-21T18:24:39","modified_gmt":"2026-04-21T16:24:39","slug":"libressl-4-3-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/libressl-4-3-0","title":{"rendered":"LibreSSL 4.3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>El proyecto LibreSSL ha anunciado el lanzamiento de la versi\u00f3n 4.3.0, que ya est\u00e1 disponible en los espejos de OpenBSD.<\/p>\n<p>Esta es una versi\u00f3n de desarrollo para la rama 4.3.x, por lo que los desarrolladores invitan a la comunidad a realizar pruebas activas. No se planean m\u00e1s cambios en la API y ABI de la rama 4.3.<\/p>\n<p>La caracter\u00edstica clave de esta versi\u00f3n es el soporte del m\u00e9todo de intercambio de claves post-cu\u00e1nticas MLKEM768_X25519 en TLS, de acuerdo con el borrador IETF draft-ietf-tls-ecdhe-mlkem. Se ha corregido un error de 'off-by-one' en la verificaci\u00f3n de la profundidad del certificado X.509, que pod\u00eda provocar la sobrescritura de 4 bytes en memoria al trabajar con malware <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/es\/server\/dts-prohoster\/\" title=\"el servidor\" data-wpil-keyword-link=\"linked\">el servidor<\/a> o con la verificaci\u00f3n de certificados de cliente habilitada. La profundidad m\u00e1xima ahora est\u00e1 limitada a 32. El problema fue descubierto por Calif.io en colaboraci\u00f3n con Claude y Anthropic Research.<\/p>\n<p>Mejoras internas:<\/p>\n<ul>\n<li>Se eliminaron fragmentos de c\u00f3digo obsoletos que quedaban de la compatibilidad con SSLv2 y SSLv3\/TLS 1.0.<\/li>\n<li>Se reescribi\u00f3 ec_point_cmp().<\/li>\n<li>Se ha a\u00f1adido una ruta r\u00e1pida en DH_check() para primos DH bien conocidos, incluidos los n\u00fameros del RFC 7919.<\/li>\n<\/ul>\n<p>Cambios de compatibilidad:<\/p>\n<ul>\n<li>Se han eliminado numerosos macros no utilizados BN_* con nombres no informativos (BN_LONG, BN_BITS4, BN_MASK2, etc.).<\/li>\n<li>openssl(1) cms ya no acepta claves no soportadas -compress y -uncompress..<\/li>\n<li>Se a\u00f1adi\u00f3 el flag PKCS7_NO_DUAL_CONTENT para comportamiento compatible con algunos bindings de lenguajes.<\/li>\n<\/ul>\n<p>Correcciones de errores:<\/p>\n<ul>\n<li>Se corrigieron fugas de memoria en CMS_EncryptedData_encrypt() y nref_nos().<\/li>\n<li>Se corrigi\u00f3 la codificaci\u00f3n de cadenas de bits con ceros finales.<\/li>\n<li>Se elimin\u00f3 un fallo al analizar PKCS#12 y respuestas de timestamp.<\/li>\n<li>Se corrigieron m\u00faltiples errores en libtls (comprobaciones de longitud, coherencia de mensajes de error).<\/li>\n<\/ul>\n<p>Otros:<\/p>\n<ul>\n<li>Se ha a\u00f1adido soporte para el algoritmo RSASSA-PSS con OID en libssl.<\/li>\n<li>Se han agregado las funciones X509_VERIFY_PARAM_set_hostflags() y SSL_SESSION_dup() a la API p\u00fablica.<\/li>\n<li>BIGNUM ahora utiliza tipos est\u00e1ndar de C99 (uint64_t\/uint32_t), lo que corrige problemas en Windows de 64 bits.<\/li>\n<\/ul>\n<p>Fuente: <a rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/bsd\/18270274\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0435\u043a\u0442 LibreSSL \u043e\u0431\u044a\u044f\u0432\u0438\u043b \u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0435 \u0432\u0435\u0440\u0441\u0438\u0438 4.3.0, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0443\u0436\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u043d\u0430 \u0437\u0435\u0440\u043a\u0430\u043b\u0430\u0445 OpenBSD. \u042d\u0442\u043e development-\u0432\u044b\u043f\u0443\u0441\u043a \u0434\u043b\u044f \u0432\u0435\u0442\u043a\u0438 4.3.x, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u0438\u0437\u044b\u0432\u0430\u044e\u0442 \u0441\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u043a \u0430\u043a\u0442\u0438\u0432\u043d\u043e\u043c\u0443 \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e. \u0414\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0438\u0445 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 API \u0438 ABI \u0432 \u0432\u0435\u0442\u043a\u0435 4.3 \u043d\u0435 \u043f\u043b\u0430\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f. \u041a\u043b\u044e\u0447\u0435\u0432\u044b\u043c \u043d\u043e\u0432\u043e\u0432\u0432\u0435\u0434\u0435\u043d\u0438\u0435\u043c \u044d\u0442\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u0441\u0442\u0430\u043b\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u043e\u0441\u0442\u043a\u0432\u0430\u043d\u0442\u043e\u0432\u043e\u0433\u043e \u043c\u0435\u0442\u043e\u0434\u0430 \u043e\u0431\u043c\u0435\u043d\u0430 \u043a\u043b\u044e\u0447\u0430\u043c\u0438 MLKEM768_X25519 \u0432 TLS \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u0447\u0435\u0440\u043d\u043e\u0432\u0438\u043a\u043e\u043c IETF draft-ietf-tls-ecdhe-mlkem. \u0423\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-169694","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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