{"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\/sk\/blog\/news\/cve-2026-31431-lokalnaya-uyazvimost-s-povysheniem-privilegij-vo-vseh-sovremennyh-linux","title":{"rendered":"CVE-2026-31431: lok\u00e1lna zranite\u013enos\u0165 zvy\u0161uj\u00faca privil\u00e9gi\u00e1 vo v\u0161etk\u00fdch modern\u00fdch Linuxoch","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

<\/p>\n

Boli zverejnen\u00e9 podrobnosti o zranite\u013enosti \u201eCopy Fail\u201c CVE-2026-31431<\/a> (Base Score: 7.8 HIGH), ktor\u00e1 umo\u017e\u0148uje lok\u00e1lne zv\u00fd\u0161enie opr\u00e1vnen\u00ed na root ak\u00e9muko\u013evek lok\u00e1lnemu pou\u017e\u00edvate\u013eovi bez osobitn\u00fdch prostriedkov a podmienok. Zasiahnut\u00e9 s\u00fa v\u00e4\u010d\u0161ina syst\u00e9mov vydan\u00fdch od roku 2017.<\/p>\n

<\/noindex><\/noindex><\/p>\n

Zranite\u013enos\u0165 je spojen\u00e1 s chybou v authencesn \u2013 kryptografickej \u0161abl\u00f3ne v jadre Linuxu \u2013 a je zneu\u017e\u00edvan\u00e1 prostredn\u00edctvom rozhrania AF_ALG.<\/p>\n

Dostupn\u00fd je exploit s k\u00f3dom na Pythone v 732 bajtoch.<\/p>\n

Pre v\u0161etky viacer\u00e9 pou\u017e\u00edvate\u013esk\u00e9 syst\u00e9my a izolovan\u00e9 prostredia sa odpor\u00fa\u010da aktualiz\u00e1cia jadra na verziu s vr\u00e1ten\u00edm commitu 72548b093ee3 pri vydan\u00ed opr\u00e1v.<\/p>\n

Efekt\u00edvnym opatren\u00edm na uzavretie zranite\u013enosti pred aktualiz\u00e1ciou bude vypnutie modulu algif_aead v jadre. Jeho vypnutie nebude ma\u0165 v\u00fdrazn\u00fd dopad na syst\u00e9my, kde nie s\u00fa kryptografick\u00e9 prostriedky v\u00fdslovne nastaven\u00e9 na pr\u00e1cu v\u00fdhradne cez AF_ALG.<\/p>\n

Zdroj: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\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 […]<\/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\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47CVE-2026-31431: lok\u00e1lna zranite\u013enos\u0165 s zv\u00fd\u0161en\u00edm opr\u00e1vnen\u00ed vo v\u0161etk\u00fdch modern\u00fdch Linuxoch | ProHoster","description":"Zverejnen\u00e9 podrobnosti o zranite\u013enosti \u201eCopy Fail\u201c CVE-2026-31431 (Base Score: 7.8 HIGH), ktor\u00e1 umo\u017e\u0148uje 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\u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 Linux | ProHoster","og:description":"\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 \u00abCopy Fail\u00bb 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 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