{"id":102701,"date":"2021-12-22T09:36:38","date_gmt":"2021-12-22T07:36:38","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-http-servera-apache-2-4-52-s-ustraneniem-perepolneniya-bufera-v-mod_lua"},"modified":"2021-12-22T09:36:38","modified_gmt":"2021-12-22T07:36:38","slug":"reliz-http-servera-apache-2-4-52-s-ustraneniem-perepolneniya-bufera-v-mod_lua","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/news\/reliz-http-servera-apache-2-4-52-s-ustraneniem-perepolneniya-bufera-v-mod_lua","title":{"rendered":"Lanzamiento del servidor http Apache 2.4.52 que corrige un desbordamiento de b\u00fafer en mod_lua","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Se ha publicado la versi\u00f3n 2.4.52 del servidor HTTP Apache, que incluye 25 cambios y corrige 2 vulnerabilidades:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2021-44790 \u2014 desbordamiento de b\u00fafer en mod_lua, que se manifiesta al analizar solicitudes que consisten en varias partes (multipart). La vulnerabilidad afecta a configuraciones en las que los scripts Lua llaman a la funci\u00f3n r:parsebody() para analizar el cuerpo de la solicitud, lo que permite al atacante provocar un desbordamiento de b\u00fafer al enviar una solicitud espec\u00edficamente dise\u00f1ada. Hasta ahora no se han detectado hechos de explotaci\u00f3n, pero potencialmente el problema podr\u00eda llevar a la ejecuci\u00f3n de c\u00f3digo propio en <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/es\/server\/dts-newyork\/\"   title=\"servidor\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2693\">servidor<\/a>.\n<li class=\"l\"> CVE-2021-44224 \u2014 vulnerabilidad SSRF (Server Side Request Forgery) en mod_proxy, que permite en configuraciones con la opci\u00f3n 'ProxyRequests on' redirigir una solicitud a un manejador diferente en el mismo servidor, que acepta conexiones a trav\u00e9s de Unix Domain Socket, al enviar un URI dise\u00f1ado. Este problema tambi\u00e9n puede ser utilizado para provocar un fallo al crear condiciones que desreferencian un puntero nulo. Afecta a las versiones de Apache httpd desde la 2.4.7.    <\/ul>\n<p>Los cambios m\u00e1s destacados no relacionados con la seguridad:   <\/p>\n<ul>\n<li class=\"l\"> Se ha a\u00f1adido soporte en mod_ssl para la compilaci\u00f3n con la biblioteca OpenSSL 3.\n<li class=\"l\"> Se ha mejorado la detecci\u00f3n de la biblioteca OpenSSL en los scripts de autoconf.\n<li class=\"l\"> En mod_proxy para protocolos de t\u00fanel se ha habilitado la opci\u00f3n de desactivar la redirecci\u00f3n de conexiones TCP medio cerradas (half-close) estableciendo el par\u00e1metro 'SetEnv proxy-nohalfclose'.\n<li class=\"l\"> Se han a\u00f1adido verificaciones adicionales para asegurar que las URIs no destinadas a ser proxy contienen el esquema http\/https, mientras que las destinadas a ser proxy contienen un nombre de host.\n<li class=\"l\"> En mod_proxy_connect y mod_proxy est\u00e1 prohibido cambiar el c\u00f3digo de estado despu\u00e9s de enviarlo al cliente.\n<li class=\"l\"> Al enviar respuestas intermedias tras recibir solicitudes con el encabezado 'Expect: 100-Continue', se ha garantizado que se indique en el resultado el estado '100 Continue', y no el estado actual de la solicitud.\n<li class=\"l\"> En mod_dav se ha a\u00f1adido soporte para extensiones CalDAV, donde al generar propiedades se deben considerar elementos de documento y elementos de propiedad. Se han a\u00f1adido nuevas funciones dav_validate_root_ns(), dav_find_child_ns(), dav_find_next_ns(), dav_find_attr_ns() y dav_find_attr(), que pueden ser invocadas desde otros m\u00f3dulos.\n<li class=\"l\"> En mpm_event se ha resuelto un problema con la detenci\u00f3n de procesos hijo inactivos despu\u00e9s de un aumento de carga en el servidor.\n<li class=\"l\"> En mod_http2 se han corregido cambios regresivos que provocaban un comportamiento incorrecto al manejar las limitaciones de MaxRequestsPerChild y MaxConnectionsPerChild.\n<li class=\"l\"> Se ampliaron las capacidades del m\u00f3dulo mod_md, utilizado para automatizar la obtenci\u00f3n y gesti\u00f3n de certificados utilizando el protocolo ACME (Automatic Certificate Management Environment):\n<ul>\n<li class=\"l\"> Se a\u00f1adi\u00f3 soporte para el mecanismo de ACME External Account Binding (EAB), habilitado mediante la directiva MDExternalAccountBinding. Los valores para EAB pueden configurarse desde un archivo externo en formato JSON, lo que permite no revelar los par\u00e1metros de autenticaci\u00f3n en el archivo principal. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/es\/server\/\"   title=\"del servidor\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"997\">del servidor<\/a>.\n<li class=\"l\"> En la directiva 'MDCertificateAuthority' se ha verificado que se indique un URL http\/https o uno de los nombres predefinidos ('LetsEncrypt', 'LetsEncrypt-Test', 'Buypass' y 'Buypass-Test') en el par\u00e1metro.\n<li class=\"l\">  Se permite la especificaci\u00f3n de la directiva MDContactEmail dentro de la secci\u00f3n .\n<li class=\"l\"> Se corrigieron varios errores, incluyendo una fuga de memoria que ocurr\u00eda en caso de fallos al cargar la clave privada.  <\/ul>\n<\/ul>\n<p>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56387\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 HTTP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.52, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043e 25 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b 2 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2021-44790 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 mod_lua, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0435\u0435\u0441\u044f \u043f\u0440\u0438 \u0440\u0430\u0437\u0431\u043e\u0440\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432, \u0441\u043e\u0441\u0442\u043e\u044f\u0449\u0438\u0445 \u0438\u0437 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u0447\u0430\u0441\u0442\u0435\u0439 (multipart). \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 Lua-\u0441\u043a\u0440\u0438\u043f\u0442\u044b \u0432\u044b\u0437\u044b\u0432\u0430\u044e\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u044e r:parsebody() \u0434\u043b\u044f \u0440\u0430\u0437\u0431\u043e\u0440\u0430 \u0442\u0435\u043b\u0430 \u0437\u0430\u043f\u0440\u043e\u0441\u0430, \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0431\u0443\u0444\u0435\u0440\u0430 \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u0430. \u0424\u0430\u043a\u0442\u043e\u0432 \u043d\u0430\u043b\u0438\u0447\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-102701","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 HTTP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.52, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043e 25 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b 2 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2021-44790 - \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 mod_lua, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0435\u0435\u0441\u044f \u043f\u0440\u0438 \u0440\u0430\u0437\u0431\u043e\u0440\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/es\/blog\/news\/reliz-http-servera-apache-2-4-52-s-ustraneniem-perepolneniya-bufera-v-mod_lua\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2\" \/>\n\t\t<meta property=\"og:locale\" content=\"es_ES\" \/>\n\t\t<meta property=\"og:site_name\" content=\"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\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0420\u0435\u043b\u0438\u0437 http-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.52 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 mod_lua | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 HTTP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.52, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043e 25 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b 2 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2021-44790 - \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 mod_lua, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0435\u0435\u0441\u044f \u043f\u0440\u0438 \u0440\u0430\u0437\u0431\u043e\u0440\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/es\/blog\/news\/reliz-http-servera-apache-2-4-52-s-ustraneniem-perepolneniya-bufera-v-mod_lua\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2021-12-22T07:36:38+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2021-12-22T07:36:38+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Lanzamiento del servidor http Apache 2.4.52 con la correcci\u00f3n del desbordamiento de b\u00fafer en mod_lua | ProHoster","description":"Se public\u00f3 la versi\u00f3n 2.4.52 del servidor HTTP Apache, que presenta 25 cambios y corrige 2 vulnerabilidades: CVE-2021-44790 - desbordamiento de b\u00fafer en mod_lua, que se manifiesta al analizar solicitudes.","canonical_url":"https:\/\/prohoster.info\/es\/blog\/news\/reliz-http-servera-apache-2-4-52-s-ustraneniem-perepolneniya-bufera-v-mod_lua","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\u0420\u0435\u043b\u0438\u0437 http-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.52 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 mod_lua | ProHoster","og:description":"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 HTTP-\u0441\u0435\u0440\u0432\u0435\u0440\u0430 Apache 2.4.52, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043e 25 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b 2 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2021-44790 - \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430 \u0432 mod_lua, \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0435\u0435\u0441\u044f \u043f\u0440\u0438 \u0440\u0430\u0437\u0431\u043e\u0440\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432.","og:url":"https:\/\/prohoster.info\/es\/blog\/news\/reliz-http-servera-apache-2-4-52-s-ustraneniem-perepolneniya-bufera-v-mod_lua","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2021-12-22T07:36:38+00:00","article:modified_time":"2021-12-22T07:36:38+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"102701","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-12-22 07:36:51","updated":"2026-02-09 21:39:49","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/posts\/102701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/comments?post=102701"}],"version-history":[{"count":2,"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/posts\/102701\/revisions"}],"predecessor-version":[{"id":159973,"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/posts\/102701\/revisions\/159973"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/media?parent=102701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/categories?post=102701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/es\/wp-json\/wp\/v2\/tags?post=102701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}