{"id":106831,"date":"2023-02-16T12:48:23","date_gmt":"2023-02-16T10:48:23","guid":{"rendered":"https:\/\/prohoster.info\/?p=106831"},"modified":"2023-02-19T12:12:20","modified_gmt":"2023-02-19T10:12:20","slug":"uyazvimosti-v-clamav-privodyashhie-k-udalyonnomu-vypolneniyu-koda-i-utechke-sistemnyh-fajlov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimosti-v-clamav-privodyashhie-k-udalyonnomu-vypolneniyu-koda-i-utechke-sistemnyh-fajlov","title":{"rendered":"Zranitelnosti v ClamAV vedouc\u00ed k vzd\u00e1len\u00e9mu vykon\u00e1n\u00ed k\u00f3du a \u00faniku syst\u00e9mov\u00fdch soubor\u016f","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Cisco vydala nov\u00e9 verze voln\u00e9ho antivirov\u00e9ho bal\u00ed\u010dku ClamAV 1.0.1, 0.105.3 a 0.103.8, ve kter\u00fdch byla opravena kritick\u00e1 zranitelnost (CVE-2023-20032), kter\u00e1 m\u016f\u017ee v\u00e9st k vykon\u00e1n\u00ed k\u00f3du p\u0159i skenov\u00e1n\u00ed soubor\u016f ClamAV s pe\u010dliv\u011b upraven\u00fdmi diskov\u00fdmi obrazy ve form\u00e1tu HFS+. <\/p>\n

Zranitelnost je zp\u016fsobena nedostate\u010dnou kontrolou velikosti vyrovn\u00e1vac\u00ed pam\u011bti, co\u017e umo\u017e\u0148uje zapsat vlastn\u00ed data do oblasti za hranicemi vyrovn\u00e1vac\u00ed pam\u011bti a uspo\u0159\u00e1dat vykon\u00e1n\u00ed k\u00f3du s pr\u00e1vy procesu ClamAV, nap\u0159\u00edklad p\u0159i skenov\u00e1n\u00ed soubor\u016f na po\u0161tovn\u00edm serveru, kter\u00e9 jsou extrahov\u00e1ny z e-mail\u016f. Publikaci aktualizovan\u00fdch bal\u00ed\u010dk\u016f v distribuc\u00edch lze sledovat na str\u00e1nk\u00e1ch: Debian, Ubuntu, Gentoo, RHEL, SUSE, Arch, FreeBSD, NetBSD. <\/p>\n

V nov\u00fdch verz\u00edch byla tak\u00e9 opravena dal\u0161\u00ed zranitelnost (CVE-2023-20052), kter\u00e1 m\u016f\u017ee v\u00e9st k \u00faniku obsahu z jak\u00fdchkoliv soubor\u016f na serveru<\/a>, ke kter\u00fdm m\u00e1 p\u0159\u00edstup proces vykon\u00e1vaj\u00edc\u00ed skenov\u00e1n\u00ed. Zranitelnost se projevuje p\u0159i anal\u00fdze pe\u010dliv\u011b upraven\u00fdch soubor\u016f ve form\u00e1tu DMG a je zp\u016fsobena t\u00edm, \u017ee parser v pr\u016fb\u011bhu anal\u00fdzy povoluje substituci extern\u00edch prvk\u016f XML, na kter\u00e9 existuj\u00ed odkazy v analyzovan\u00e9m DMG souboru.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cisco \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u043d\u043e\u0432\u044b\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0430\u043d\u0442\u0438\u0432\u0438\u0440\u0443\u0441\u043d\u043e\u0433\u043e \u043f\u0430\u043a\u0435\u0442\u0430 ClamAV 1.0.1, 0.105.3 \u0438 0.103.8, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-20032), \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u0430\u044f \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u0441\u043a\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0432 ClamAV \u0444\u0430\u0439\u043b\u043e\u0432 \u0441\u043e \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u043c\u0438 \u0434\u0438\u0441\u043a\u043e\u0432\u044b\u043c\u0438 \u043e\u0431\u0440\u0430\u0437\u0430\u043c\u0438 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 HFS+. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0434\u043e\u043b\u0436\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0431\u0443\u0444\u0435\u0440\u0430, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0437\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0441\u0432\u043e\u0438 \u0434\u0430\u043d\u043d\u044b\u0435 \u0432 \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u0437\u0430 \u0433\u0440\u0430\u043d\u0438\u0446\u0443 \u0431\u0443\u0444\u0435\u0440\u0430 \u0438 […]<\/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-106831","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\udd47Zranitelnosti v ClamAV vedouc\u00ed k vzd\u00e1len\u00e9mu vykon\u00e1n\u00ed k\u00f3du a \u00faniku syst\u00e9mov\u00fdch soubor\u016f | ProHoster","description":"Spole\u010dnost Cisco vydala nov\u00e9 verze voln\u00e9ho antivirov\u00e9ho bal\u00ed\u010dku ClamAV 1.0.1, 0.105.3 a 0.103.8, ve kter\u00fdch byla opravena kritick\u00e1 zranitelnost (CVE-2023-20032), kter\u00e1 m\u016f\u017ee v\u00e9st k vykon\u00e1n\u00ed k\u00f3du p\u0159i.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimosti-v-clamav-privodyashhie-k-udalyonnomu-vypolneniyu-koda-i-utechke-sistemnyh-fajlov","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","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\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 ClamAV, \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0449\u0438\u0435 \u043a \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u0438 \u0443\u0442\u0435\u0447\u043a\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u0444\u0430\u0439\u043b\u043e\u0432 | ProHoster","og:description":"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cisco \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u043d\u043e\u0432\u044b\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u0430\u043d\u0442\u0438\u0432\u0438\u0440\u0443\u0441\u043d\u043e\u0433\u043e \u043f\u0430\u043a\u0435\u0442\u0430 ClamAV 1.0.1, 0.105.3 \u0438 0.103.8, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u043a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-20032), \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u0430\u044f \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430 \u043f\u0440\u0438.","og:url":"https:\/\/prohoster.info\/cs\/blog\/news\/uyazvimosti-v-clamav-privodyashhie-k-udalyonnomu-vypolneniyu-koda-i-utechke-sistemnyh-fajlov","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":"2023-02-16T10:48:23+00:00","article:modified_time":"2023-02-19T10:12:20+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"106831","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":"2026-02-09 21:39:59","updated":"2026-02-09 21:39:59","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/106831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/comments?post=106831"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/106831\/revisions"}],"predecessor-version":[{"id":160026,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/posts\/106831\/revisions\/160026"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/media?parent=106831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/categories?post=106831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/cs\/wp-json\/wp\/v2\/tags?post=106831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}