{"id":93182,"date":"2020-09-04T07:41:58","date_gmt":"2020-09-04T05:41:58","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-gnupg-2-2-23-s-ustraneniem-kriticheskoj-uyazvimosti"},"modified":"2020-09-04T07:41:58","modified_gmt":"2020-09-04T05:41:58","slug":"obnovlenie-gnupg-2-2-23-s-ustraneniem-kriticheskoj-uyazvimosti","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/obnovlenie-gnupg-2-2-23-s-ustraneniem-kriticheskoj-uyazvimosti","title":{"rendered":"Aggiornamento GnuPG 2.2.23 con risoluzione di una vulnerabilit\u00e0 critica","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/lists.gnupg.org\/pipermail\/gnupg-announce\/2020q3\/000448.html\">Pubblicato<\/a><\/noindex>  rilascio dello strumento  <noindex><a rel=\"nofollow\" href=\"https:\/\/gnupg.org\/\">GnuPG 2.2.23<\/a><\/noindex> (GNU Privacy Guard), compatibile con gli standard OpenPGP (<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc4880\">RFC-4880<\/a><\/noindex>) e S\/MIME, fornendo strumenti per la crittografia dei dati, gestione delle firme elettroniche, gestione delle chiavi e accesso ai repository di chiavi pubbliche. Nella nuova versione \u00e8 stata corretta una vulnerabilit\u00e0 critica (<noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-25125\">CVE-2020-25125<\/a><\/noindex>), che si manifesta a partire dalla versione 2.2.21 e sfruttabile importando una chiave OpenPGP appositamente formattata.<\/p>\n<p>L'importazione di una chiave con un elenco di algoritmi AEAD formattato in modo specifico pu\u00f2 portare a un overflow dell'array e a un crash o comportamento indefinito. Si osserva che creare un exploit che porti non solo al crash \u00e8 un compito complesso, ma tale possibilit\u00e0 non \u00e8 esclusa. La principale difficolt\u00e0 nello sviluppo dell'exploit \u00e8 che l'attaccante pu\u00f2 controllare solo ogni secondo byte della sequenza, mentre il primo byte \u00e8 sempre impostato a 0x04. I sistemi di distribuzione del software con verifica tramite chiavi digitali sono al sicuro, poich\u00e9 utilizzano un elenco di chiavi predefinito.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53655\">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 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f GnuPG 2.2.23 (GNU Privacy Guard), \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0433\u043e \u0441\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430\u043c\u0438 OpenPGP (RFC-4880) \u0438 S\/MIME, \u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0443\u0442\u0438\u043b\u0438\u0442\u044b \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445, \u0440\u0430\u0431\u043e\u0442\u044b \u0441 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u043c\u0438 \u043f\u043e\u0434\u043f\u0438\u0441\u044f\u043c\u0438, \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0430\u043c\u0438 \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u044b\u043c \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430\u043c \u043a\u043b\u044e\u0447\u0435\u0439. \u0412 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \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-2020-25125), \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0430\u044f\u0441\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 2.2.21 \u0438 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u0443\u0435\u043c\u0430\u044f \u043f\u0440\u0438 \u0438\u043c\u043f\u043e\u0440\u0442\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043a\u043b\u044e\u0447\u0430 OpenPGP. \u0418\u043c\u043f\u043e\u0440\u0442 \u043a\u043b\u044e\u0447\u0430 [&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-93182","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- 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