{"id":114685,"date":"2024-04-01T00:25:44","date_gmt":"2024-03-31T22:25:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-kodovoj-baze-xz-vyyavleno-izmenenie-meshavshee-vklyucheniyu-mehanizma-zashhity-landlock"},"modified":"2024-04-01T00:25:44","modified_gmt":"2024-03-31T22:25:44","slug":"v-kodovoj-baze-xz-vyyavleno-izmenenie-meshavshee-vklyucheniyu-mehanizma-zashhity-landlock","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/v-kodovoj-baze-xz-vyyavleno-izmenenie-meshavshee-vklyucheniyu-mehanizma-zashhity-landlock","title":{"rendered":"Nella base di codice xz \u00e8 stata rilevata una modifica che impediva l'attivazione del meccanismo di protezione Landlock","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nel repository del progetto xz continuano a emergere modifiche apportate dall'autore del backdoor per bloccare i meccanismi di protezione. Nel file di build CMakeLists.txt \u00e8 stata trovata una modifica che non permetteva di utilizzare in xz il meccanismo di isolamento delle applicazioni Landlock, nonostante fosse supportato dal sistema. Nel codice C, che verifica la disponibilit\u00e0 della system call Landlock, \u00e8 stata intenzionalmente aggiunta una virgola, il che portava al fallimento della verifica della presenza di Landlock in qualsiasi condizione. <\/p>\n

\u00c8 stata aggiunta una modifica da Jia Tan il 26 febbraio sotto forma di implementazione di un controllo avanzato per la presenza del supporto Landlock. In passato, la verifica del supporto per Landlock si basava esclusivamente sull'esistenza del file di intestazione \u00ablinux\/landlock.h\u00bb, mentre nella modifica \u00e8 stato aggiunto un test scritto in C che richiama prctl per la verifica. A causa di una riga di codice obsoleta all'inizio, questo codice risultava non funzionante e il test terminava sempre con un errore.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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