Il progetto OpenBSD ha pubblicato una correzione per la vulnerabilit\u00e0 (CVE-2026-57589) nel kernel, che riguarda l'implementazione delle chiamate di sistema per gestire i semafori System V (sem). Il problema \u00e8 causato dall'accesso a memoria gi\u00e0 liberata nella funzione sys_semget() e pu\u00f2 essere sfruttato per ottenere diritti di root da un utente locale non privilegiato in configurazione predefinita. <\/p>\n
La correzione \u00e8 stata inclusa nel codice sorgente OpenBSD-current il 23 maggio, ma le patch per le versioni gi\u00e0 rilasciate sono state pubblicate solo oggi. L'errore era presente nel codice da 23 anni ed \u00e8 stato rilevato nell'ambito dell'iniziativa Patch the Planet, che verifica i progetti open source con modelli AI di OpenAI. <\/p>\n
Oltre al problema segnalato, sono state pubblicate diverse correzioni che non sono contrassegnate come risoluzioni di vulnerabilit\u00e0, ma, a giudicare dalla descrizione, potrebbero essere correlate alla sicurezza: insufficiente validazione dell'input nel codice IPsec e IPComp; doppia liberazione di memoria in server<\/a> NFS; corruzione di memoria nel codice per la gestione dei lock nelle funzioni pinsyscall e kbind. \u041f\u0440\u043e\u0435\u043a\u0442 OpenBSD \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2026-57589) \u0432 \u044f\u0434\u0440\u0435, \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0445 \u0432\u044b\u0437\u043e\u0432\u043e\u0432 \u0434\u043b\u044f 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\u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e. \u0412 \u043a\u043e\u0434\u043e\u0432\u0443\u044e \u0431\u0430\u0437\u0443 OpenBSD-current \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0431\u044b\u043b\u043e \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u043e 23 \u043c\u0430\u044f, \u043d\u043e \u0434\u043b\u044f \u0443\u0436\u0435 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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"