{"id":114268,"date":"2024-03-12T12:25:57","date_gmt":"2024-03-12T10:25:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-android-14-ekspluatiruemaya-cherez-bluetooth-le"},"modified":"2024-03-12T12:25:57","modified_gmt":"2024-03-12T10:25:57","slug":"uyazvimost-v-android-14-ekspluatiruemaya-cherez-bluetooth-le","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/uyazvimost-v-android-14-ekspluatiruemaya-cherez-bluetooth-le","title":{"rendered":"Vulnerabilit\u00e0 in Android 14, sfruttabile tramite Bluetooth LE","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Gli sviluppatori del progetto GrapheneOS, che sviluppa un ramo protetto della base di codice AOSP (Android Open Source Project), hanno identificato una vulnerabilit\u00e0 nello stack Bluetooth della piattaforma Android 14, che potrebbe portare a un'esecuzione remota di codice. Il problema \u00e8 causato da un accesso a un'area di memoria gi\u00e0 liberata (use-after-free) nel codice di gestione del suono trasmesso tramite Bluetooth LE.     <\/p>\n<p>La vulnerabilit\u00e0 \u00e8 stata identificata grazie all'integrazione di una protezione aggiuntiva nella chiamata a hardened_malloc, che utilizza l'estensione ARMv8.5 MTE (MemTag, Memory Tagging Extension), che consente di associare tag a ogni operazione di allocazione di memoria e organizzare un controllo della correttezza nell'uso dei puntatori per bloccare sfruttamenti delle vulnerabilit\u00e0 originate da accessi a blocchi di memoria gi\u00e0 liberati, overflow di buffer, accessi prima dell'inizializzazione e utilizzo fuori dal contesto corrente.     <\/p>\n<p>L'errore si manifesta a partire dall'aggiornamento Android 14 QPR2 (Quarterly Platform Release), pubblicato all'inizio di marzo. Nella base di codice principale della piattaforma Android 14, il meccanismo MTE \u00e8 disponibile come opzione e non \u00e8 ancora attivato di default, ma in GrapheneOS \u00e8 gi\u00e0 stato implementato per una protezione aggiuntiva, consentendo cos\u00ec di diagnosticare l'errore dopo l'aggiornamento a Android 14 QPR2. L'errore causava un arresto anomalo durante l'uso delle cuffie Bluetooth Samsung Galaxy Buds2 Pro con firmware in cui \u00e8 attivata la protezione basata su MTE. L'analisi del caso ha rivelato che il problema era relativo a un accesso a memoria gi\u00e0 liberata nel gestore Bluetooth LE, e non a un fallimento causato dall'integrazione dell'MTE.      <\/p>\n<p>La vulnerabilit\u00e0 \u00e8 stata corretta nella versione GrapheneOS 2024030900 e colpisce le versioni per smartphone in cui non \u00e8 abilitata la protezione hardware supplementare basata sull'estensione MTE (MTE \u00e8 attualmente abilitato solo per i dispositivi Pixel 8 e Pixel 8 Pro). La vulnerabilit\u00e0 si verifica sugli smartphone Google Pixel 8 con firmware basato su Android 14 QPR2. Su Android per gli smartphone della serie Pixel 8, la modalit\u00e0 MTE pu\u00f2 essere attivata nelle impostazioni per gli sviluppatori (\"Impostazioni \/ Sistema \/ Opzioni per sviluppatori \/ Estensioni di tagging della memoria\"). L'attivazione di MTE comporta un aumento del consumo di memoria di circa il 3%, ma non riduce le prestazioni.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60771\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 GrapheneOS, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0449\u0435\u0433\u043e \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u043e\u0435 \u043e\u0442\u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0435 \u043e\u0442 \u043a\u043e\u0434\u043e\u0432\u043e\u0439 \u0431\u0430\u0437\u044b AOSP (Android Open Source Project), \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 Bluetooth-\u0441\u0442\u0435\u043a\u0435 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Android 14, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043c\u043e\u0436\u0435\u0442 \u043f\u0440\u0438\u0432\u0435\u0441\u0442\u0438 \u043a \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u043c\u0443 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u043a\u043e\u0434\u0430. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0435\u043c \u043a \u0443\u0436\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0451\u043d\u043d\u043e\u0439 \u043e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0430\u043c\u044f\u0442\u0438 (use-after-free) \u0432 \u043a\u043e\u0434\u0435 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0437\u0432\u0443\u043a\u0430, \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0435\u043c\u043e\u0433\u043e \u0447\u0435\u0440\u0435\u0437 Bluetooth LE. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0431\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u0438\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u0438 \u0432 \u0432\u044b\u0437\u043e\u0432 hardened_malloc \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-114268","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" 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ProHoster","description":"Gli sviluppatori del progetto GrapheneOS, che sviluppa un ramo sicuro del codice sorgente AOSP (Android Open Source Project), hanno identificato una vulnerabilit\u00e0 nel stack Bluetooth della piattaforma Android 14, che potrebbe portare a problemi.","canonical_url":"https:\/\/prohoster.info\/it\/blog\/news\/uyazvimost-v-android-14-ekspluatiruemaya-cherez-bluetooth-le","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\udd47\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 Android 14, 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