{"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\/it\/blog\/novosti-interneta\/cve-2026-31431-lokalnaya-uyazvimost-s-povysheniem-privilegij-vo-vseh-sovremennyh-linux","title":{"rendered":"CVE-2026-31431: vulnerabilit\u00e0 locale per l'elevazione dei privilegi in tutte le moderne distribuzioni Linux.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex>      <noindex><\/p>\n<p>Pubblicati i dettagli della vulnerabilit\u00e0 \u00abCopy Fail\u00bb <a rel=\"nofollow\" href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-31431\">CVE-2026-31431<\/a> (Base Score:  7.8 ALTA), che consente l'elevazione locale dei privilegi a root per qualsiasi utente locale senza requisiti speciali. Sono interessati la maggior parte dei sistemi rilasciati dal 2017.<\/p>\n<p><\/noindex><\/noindex><\/p>\n<p>La vulnerabilit\u00e0 \u00e8 legata a un errore in authencesn \u2014 un modello crittografico nel kernel di Linux \u2014 ed \u00e8 sfruttata attraverso l'interfaccia AF_ALG.<\/p>\n<p>Disponibile un exploit con codice Python di 732 byte.<\/p>\n<p>Per tutti i sistemi multiutente e gli ambienti isolati si raccomanda di aggiornare il kernel alla versione con il rollback del commit 72548b093ee3 una volta rilasciati i fix.<\/p>\n<p>Una misura efficace per mitigare la vulnerabilit\u00e0 fino all'aggiornamento sar\u00e0 disabilitare il modulo algif_aead nel kernel. La sua disabilitazione non avr\u00e0 un impatto significativo sui sistemi dove le risorse crittografiche non sono esplicitamente configurate per funzionare esclusivamente tramite AF_ALG.<\/p>\n<p>Fonte: <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-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0441\u0442\u0438 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property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47CVE-2026-31431: vulnerabilit\u00e0 locale con elevazione dei privilegi su tutti i moderni Linux | ProHoster","description":"Sono stati pubblicati i dettagli della vulnerabilit\u00e0 \"Copy Fail\" CVE-2026-31431 (Base Score: 7.8 ALTA), che consente a qualsiasi utente locale di ottenere privilegi di root senza requisiti particolari. La maggior parte dei sistemi rilasciati dal 2017 \u00e8 colpita. La vulnerabilit\u00e0 \u00e8 legata a un errore in authencesn \u2014 un modello crittografico nel kernel Linux \u2014 ed \u00e8 sfruttabile tramite l'interfaccia AF_ALG. \u00c8 disponibile un exploit con codice su","canonical_url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/cve-2026-31431-lokalnaya-uyazvimost-s-povysheniem-privilegij-vo-vseh-sovremennyh-linux","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47CVE-2026-31431: \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0441 \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u0435\u043c \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0439 \u0432\u043e \u0432\u0441\u0435\u0445 \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 \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","og:url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/cve-2026-31431-lokalnaya-uyazvimost-s-povysheniem-privilegij-vo-vseh-sovremennyh-linux","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2026-04-30T10:24:42+00:00","article:modified_time":"2026-04-30T10:24:42+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/170100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/comments?post=170100"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/posts\/170100\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/media?parent=170100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/categories?post=170100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/it\/wp-json\/wp\/v2\/tags?post=170100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}