{"id":99573,"date":"2021-03-25T16:22:53","date_gmt":"2021-03-25T14:22:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-samba-4-14-2-4-13-7-i-4-12-14-s-ustraneniem-uyazvimostej"},"modified":"2021-03-25T16:22:53","modified_gmt":"2021-03-25T14:22:53","slug":"obnovlenie-samba-4-14-2-4-13-7-i-4-12-14-s-ustraneniem-uyazvimostej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/obnovlenie-samba-4-14-2-4-13-7-i-4-12-14-s-ustraneniem-uyazvimostej","title":{"rendered":"Aggiornamento Samba 4.14.2, 4.13.7 e 4.12.14 con correzioni delle vulnerabilit\u00e0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Sono stati rilasciati gli aggiornamenti correttivi per i pacchetti Samba 4.14.2, 4.13.7 e 4.12.14, che risolvono due vulnerabilit\u00e0:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2020-27840 \u2014 overflow del buffer che si verifica durante l'elaborazione di nomi DN (Distinguished Name) appositamente formattati. Un attaccante anonimo pu\u00f2 causare il crash del server AD DC LDAP basato su Samba inviando una richiesta bind appositamente formattata. Poich\u00e9 durante l'attacco \u00e8 possibile controllare l'area di sovrascrittura, non si escludono conseguenze pi\u00f9 gravi, come l'esecuzione di codice arbitrario su <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-dronten\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2615\">server<\/a>, ma al momento non esiste un exploit funzionante. Poich\u00e9 il codice che causa la vulnerabilit\u00e0 che analizza la stringa DN viene eseguito in fase di pre-verifica dei parametri di autenticazione, il problema pu\u00f2 essere sfruttato da un attaccante senza un account su <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-newyork\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2661\">server<\/a>.\n<li class=\"l\"> CVE-2021-20277 \u2014 lettura da un'area al di fuori dei confini del buffer durante l'elaborazione su un server AD DC LDAP di un filtro impostato dall'utente, appositamente formattato. Il problema pu\u00f2 portare al crash del gestore del server o a una perdita di contenuti dalla memoria del processo.      <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54827\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 Samba 4.14.2, 4.13.7 \u0438 4.12.14, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2020-27840 &#8212; \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u0443\u0444\u0435\u0440\u0430, \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0449\u0435\u0435 \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u044b\u0445 \u0438\u043c\u0451\u043d DN (Distinguished Name). \u0410\u043d\u043e\u043d\u0438\u043c\u043d\u044b\u0439 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u043c\u043e\u0436\u0435\u0442 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043a\u0440\u0430\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 AD DC LDAP \u043d\u0430 \u0431\u0430\u0437\u0435 Samba \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 bind-\u0437\u0430\u043f\u0440\u043e\u0441\u0430. \u0422\u0430\u043a \u043a\u0430\u043a \u0432 \u0445\u043e\u0434\u0435 \u0430\u0442\u0430\u043a\u0438 \u0438\u043c\u0435\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u0437\u0430\u043f\u0438\u0441\u0438, \u043d\u0435 [&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-99573","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - 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overflow del buffer che si verifica durante l'elaborazione di contenuti appositamente formattati.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/news\/obnovlenie-samba-4-14-2-4-13-7-i-4-12-14-s-ustraneniem-uyazvimostej","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","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 Samba 4.14.2, 4.13.7 \u0438 4.12.14 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 | ProHoster","og:description":"\u041f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 Samba 4.14.2, 4.13.7 \u0438 4.12.14, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0434\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438: CVE-2020-27840 - 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