{"id":101322,"date":"2021-09-19T10:22:50","date_gmt":"2021-09-19T08:22:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-podsisteme-io_uring-yadra-linux-pozvolyayushhaya-podnyat-svoi-privilegii"},"modified":"2021-09-19T10:22:50","modified_gmt":"2021-09-19T08:22:50","slug":"uyazvimost-v-podsisteme-io_uring-yadra-linux-pozvolyayushhaya-podnyat-svoi-privilegii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/uyazvimost-v-podsisteme-io_uring-yadra-linux-pozvolyayushhaya-podnyat-svoi-privilegii","title":{"rendered":"Vulnerabilit\u00e0 nel sottosistema io_uring del kernel Linux che consente di aumentare i propri privilegi","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00c8 stata identificata una vulnerabilit\u00e0 nel kernel di Linux (CVE-2021-41073) che consente a un utente locale di elevare i propri privilegi nel sistema. Il problema \u00e8 causato da un errore nell'implementazione dell'interfaccia di input\/output asincrono io_uring, che porta all'accesso a un blocco di memoria gi\u00e0 liberato. \u00c8 stato segnalato che il ricercatore \u00e8 riuscito a ottenere la liberazione della memoria a un determinato offset manipolando la funzione loop_rw_iter() da parte di un utente non privilegiato, il che rende possibile la creazione di un exploit funzionante. Finora, il problema \u00e8 stato risolto solo con una patch che \u00e8 stata backportata nelle branche stabili del kernel, ma l'aggiornamento non \u00e8 ancora stato rilasciato.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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