{"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\/pl\/blog\/news\/obnovlenie-gnupg-2-2-23-s-ustraneniem-kriticheskoj-uyazvimosti","title":{"rendered":"Aktualizacja GnuPG 2.2.23 z poprawk\u0105 krytycznej luki bezpiecze\u0144stwa","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\">Opublikowano<\/a><\/noindex>  wydanie narz\u0119dzi  <noindex><a rel=\"nofollow\" href=\"https:\/\/gnupg.org\/\">GnuPG 2.2.23<\/a><\/noindex> (GNU Privacy Guard), zgodny z normami OpenPGP (<noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc4880\">RFC-4880<\/a><\/noindex>) i S\/MIME, oferuj\u0105cy narz\u0119dzia do szyfrowania danych, pracy z podpisami elektronicznymi, zarz\u0105dzania kluczami oraz dost\u0119pu do publicznych repozytori\u00f3w kluczy. W nowej wersji usuni\u0119to krytyczn\u0105 luk\u0119 (<noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-25125\">CVE-2020-25125<\/a><\/noindex>), wyst\u0119puj\u0105c\u0105 od wersji 2.2.21 i wykorzystywan\u0105 przy imporcie specjalnie spreparowanego klucza OpenPGP.<\/p>\n<p>Import klucza z specjalnie przygotowan\u0105 du\u017c\u0105 list\u0105 algorytm\u00f3w AEAD mo\u017ce prowadzi\u0107 do przepe\u0142nienia tablicy i spadku lub nieprzewidywalnego zachowania. Zg\u0142asza si\u0119, \u017ce stworzenie exploit\u2019a prowadz\u0105cego nie tylko do awarii jest trudnym zadaniem, ale taka mo\u017cliwo\u015b\u0107 nie jest wykluczona. G\u0142\u00f3wna trudno\u015b\u0107 w opracowaniu exploita polega na tym, \u017ce atakuj\u0105cy mo\u017ce kontrolowa\u0107 tylko ka\u017cdy drugi bajt sekwencji, a pierwszy bajt zawsze ma warto\u015b\u0107 0x04. Systemy dystrybucji oprogramowania z weryfikacj\u0105 cyfrowych kluczy s\u0105 w bezpiecze\u0144stwie, poniewa\u017c wykorzystuj\u0105 predefiniowan\u0105 list\u0119 kluczy.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>\u0179r\u00f3d\u0142o: <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<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\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.\" \/>\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\/pl\/blog\/news\/obnovlenie-gnupg-2-2-23-s-ustraneniem-kriticheskoj-uyazvimosti\" \/>\n\t<meta name=\"generator\" 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