{"id":170100,"date":"2026-04-30T12:24:42","date_gmt":"2026-04-30T10:24:42","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/cve-2026-31431-lokalnaya-uyazvimost-s-povysheniem-privilegij-vo-vseh-sovremennyh-linux"},"modified":"2026-04-30T12:24:42","modified_gmt":"2026-04-30T10:24:42","slug":"cve-2026-31431-lokalnaya-uyazvimost-s-povysheniem-privilegij-vo-vseh-sovremennyh-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/cve-2026-31431-lokalnaya-uyazvimost-s-povysheniem-privilegij-vo-vseh-sovremennyh-linux","title":{"rendered":"CVE-2026-31431: m\u00edstn\u00ed zranitelnost pro zv\u00fd\u0161en\u00ed opr\u00e1vn\u011bn\u00ed ve v\u0161ech modern\u00edch Linuxech","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex>      <noindex><\/p>\n<p>Byly zve\u0159ejn\u011bny podrobnosti o zranitelnosti &laquo;Copy Fail&raquo; <a rel=\"nofollow\" href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-31431\">CVE-2026-31431<\/a> (Base Score: 7.8 VYSOK\u00c9), co\u017e umo\u017e\u0148uje m\u00edstn\u00edmu u\u017eivateli zv\u00fd\u0161it opr\u00e1vn\u011bn\u00ed na root bez speci\u00e1ln\u00edch prost\u0159edk\u016f a podm\u00ednek. Zasa\u017eeno je v\u011bt\u0161ina syst\u00e9m\u016f vydan\u00fdch od roku 2017.<\/p>\n<p><\/noindex><\/noindex><\/p>\n<p>Zranitelnost je spojena s chybou v authencesn \u2014 kryptografick\u00e9m vzoru v Linuxov\u00e9m j\u00e1d\u0159e \u2014 a je zneu\u017e\u00edv\u00e1na prost\u0159ednictv\u00edm rozhran\u00ed AF_ALG.<\/p>\n<p>K dispozici je exploit s k\u00f3dem v Pythonu o velikosti 732 bajt\u016f.<\/p>\n<p>Pro v\u0161echny v\u00edc u\u017eivatelsk\u00e9 syst\u00e9my a izolovan\u00e9 prost\u0159ed\u00ed se doporu\u010duje aktualizace j\u00e1dra na verzi se sta\u017een\u00edm commitu 72548b093ee3 p\u0159i vyd\u00e1n\u00ed oprav.<\/p>\n<p>Efektivn\u00edm opat\u0159en\u00edm k uzav\u0159en\u00ed zranitelnosti do doby aktualizace bude deaktivace modulu algif_aead v j\u00e1d\u0159e. Jeho deaktivace nem\u00e1 \u017e\u00e1dn\u00fd znateln\u00fd dopad na syst\u00e9my, kde jsou kryptografick\u00e9 prost\u0159edky v\u00fdslovn\u011b nastaveny na pr\u00e1ci v\u00fdhradn\u011b prost\u0159ednictv\u00edm AF_ALG.<\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/security\/18278962\">linux.org.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\u044b \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 &laquo;Copy Fail&raquo; CVE-2026-31431 (Base Score: 7.8 HIGH), \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0435 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0439 \u0434\u043e root \u043b\u044e\u0431\u043e\u0433\u043e \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0431\u0435\u0437 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u0438 \u0443\u0441\u043b\u043e\u0432\u0438\u0439. \u0417\u0430\u0442\u0440\u043e\u043d\u0443\u0442\u044b \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u0441\u0438\u0441\u0442\u0435\u043c, \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u044b\u0445 \u0441 2017 \u0433\u043e\u0434\u0430. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043e\u0448\u0438\u0431\u043a\u043e\u0439 \u0432 authencesn \u2014 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u0448\u0430\u0431\u043b\u043e\u043d\u0435 \u0432 \u044f\u0434\u0440\u0435 Linux \u2014 \u0438 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 AF_ALG. \u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u044d\u043a\u0441\u043f\u043b\u043e\u0438\u0442 \u0441 \u043a\u043e\u0434\u043e\u043c \u043d\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-170100","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" 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