{"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\/de\/blog\/news\/obnovlenie-gnupg-2-2-23-s-ustraneniem-kriticheskoj-uyazvimosti","title":{"rendered":"Aktualisierung GnuPG 2.2.23 zur Behebung einer kritischen Sicherheitsanf\u00e4lligkeit","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\">Ver\u00f6ffentlicht<\/a><\/noindex>  Release der Werkzeuge  <noindex><a rel=\"nofollow\" href=\"https:\/\/gnupg.org\/\">GnuPG 2.2.23<\/a><\/noindex> (GNU Privacy Guard), kompatibel mit den Standards von OpenPGP (<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc4880\">RFC-4880<\/a><\/noindex>) und S\/MIME, und bietet Werkzeuge zur Datenverschl\u00fcsselung, zur Arbeit mit elektronischen Signaturen, zur Schl\u00fcsselverwaltung und zum Zugang zu \u00f6ffentlichen Schl\u00fcssel-Speichern. In der neuen Version wurde eine kritische Sicherheitsanf\u00e4lligkeit behoben (<noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-25125\">CVE-2020-25125<\/a><\/noindex>), die seit Version 2.2.21 auftritt und beim Import eines speziell gestalteten OpenPGP-Schl\u00fcssels ausgenutzt werden kann.<\/p>\n<p>Der Import eines Schl\u00fcssels mit einer speziell gestalteten gro\u00dfen Liste von AEAD-Algorithmen kann zu einem Puffer\u00fcberlauf und einem Absturz oder zu undefined behavior f\u00fchren. Es wird festgestellt, dass es eine komplexe Aufgabe ist, einen Exploit zu erstellen, der nicht nur zu einem Absturz f\u00fchrt, aber diese M\u00f6glichkeit ist nicht auszuschlie\u00dfen. Die Hauptschwierigkeit bei der Entwicklung eines Exploits besteht darin, dass der Angreifer nur jedes zweite Byte der Sequenz kontrollieren kann, w\u00e4hrend das erste Byte immer den Wert 0x04 hat. Software-Verbreitungssysteme mit digitaler Schl\u00fcssel\u00fcberpr\u00fcfung sind nicht gef\u00e4hrdet, da sie eine vordefinierte Liste von Schl\u00fcsseln verwenden.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Quelle: <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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