{"id":105815,"date":"2022-12-03T15:36:44","date_gmt":"2022-12-03T13:36:46","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/okolo-21-novogo-kompiliruemogo-koda-v-android-13-napisano-na-yazyke-rust"},"modified":"2022-12-03T15:36:44","modified_gmt":"2022-12-03T13:36:46","slug":"okolo-21-novogo-kompiliruemogo-koda-v-android-13-napisano-na-yazyke-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/okolo-21-novogo-kompiliruemogo-koda-v-android-13-napisano-na-yazyke-rust","title":{"rendered":"Circa il 21% del nuovo codice compilato in Android 13 \u00e8 scritto in Rust.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Gli ingegneri di Google hanno fornito i primi aggiornamenti sull'integrazione del supporto per lo sviluppo in linguaggio Rust nella piattaforma Android. In Android 13, circa il 21% del nuovo codice compilabile aggiunto \u00e8 scritto in Rust, mentre il 79% \u00e8 in C\/C++. Nel repository AOSP (Android Open Source Project), dove si sviluppano i codice sorgente della piattaforma Android, ci sono circa 1,5 milioni di righe di codice in Rust, collegate a nuovi componenti come il sistema di archiviazione delle chiavi crittografiche Keystore2, lo stack per chip UWB (Ultra-Wideband), l'implementazione del protocollo DNS-over-HTTP3, il framework di virtualizzazione AVF (Android Virtualization Framework) e stack sperimentali per Bluetooth e Wi-Fi.     <center><img decoding=\"async\" alt=\"Circa il 21% del nuovo codice compilato in Android 13 \u00e8 scritto in Rust.\" src=\"\/wp-content\/uploads\/2022\/12\/6299bf41b363367229b874699034b828.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>In conformit\u00e0 con la strategia precedentemente adottata per ridurre il rischio di vulnerabilit\u00e0 causate da errori nella gestione della memoria, il linguaggio Rust viene attualmente utilizzato principalmente per lo sviluppo di nuovo codice e per migliorare gradualmente la sicurezza dei componenti software pi\u00f9 vulnerabili e critici. Non si ha come obiettivo generale la migrazione dell'intera piattaforma a Rust, e il codice precedente rimane in C\/C++, mentre la risoluzione degli errori in esso viene effettuata attraverso tecniche come il fuzzing, l'analisi statica e metodi simili all'utilizzo di MiraclePtr (un wrapper sopra i puntatori raw che esegue controlli aggiuntivi per l'accesso a aree di memoria liberate), il sistema di distribuzione della memoria Scudo (una sostituzione sicura di malloc\/free) e meccanismi di individuazione degli errori nella gestione della memoria come HWAsan (Hardware-assisted AddressSanitizer), GWP-ASAN e KFENCE.           <\/p>\n<p>Per quanto riguarda la statistica sulle vulnerabilit\u00e0 nella piattaforma Android, si osserva che con la riduzione del nuovo codice che gestisce la memoria in modo non sicuro, c'\u00e8 una diminuzione del numero di vulnerabilit\u00e0 causate da errori nella gestione della memoria. Ad esempio, la percentuale di vulnerabilit\u00e0 provocate da problemi di memoria \u00e8 scesa dal 76% nel 2019 al 35% nel 2022. In termini assoluti, nel 2019 sono state identificate 223 vulnerabilit\u00e0 legate alla gestione della memoria, nel 2020 - 150, nel 2021 - 100 e nel 2022 - 85 (tutte le vulnerabilit\u00e0 segnalate riguardano codice C\/C++, mentre nel codice Rust non sono stati trovati problemi simili). Il 2022 \u00e8 stato il primo anno in cui le vulnerabilit\u00e0 legate alla memoria hanno smesso di dominare.       <center><img decoding=\"async\" alt=\"Circa il 21% del nuovo codice compilato in Android 13 \u00e8 scritto in Rust.\" src=\"\/wp-content\/uploads\/2022\/12\/d75198f9cd7d0b5fdbaa22f56443267b.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>      <\/p>\n<p>Poich\u00e9 le vulnerabilit\u00e0 legate alla gestione della memoria sono generalmente le pi\u00f9 pericolose, nella statistica generale si registra anche una diminuzione del numero di problemi critici e di problemi che possono essere sfruttati da remoto. Tuttavia, la dinamica di identificazione delle vulnerabilit\u00e0 non legate alla gestione della memoria rimane costante negli ultimi 4 anni, con circa 20 vulnerabilit\u00e0 al mese. Inoltre, si mantiene anche la percentuale di problemi gravi tra le vulnerabilit\u00e0 causate da errori nella gestione della memoria (ma poich\u00e9 il numero di tali vulnerabilit\u00e0 diminuisce, diminuisce anche il numero di problemi gravi).      <center><img decoding=\"async\" alt=\"Circa il 21% del nuovo codice compilato in Android 13 \u00e8 scritto in Rust.\" src=\"\/wp-content\/uploads\/2022\/12\/3dd83819e02c176dd56ea170513a07f4.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>            <\/p>\n<p>Nelle statistiche si monitora anche la correlazione tra il volume di nuovo codice non sicuro nella gestione della memoria e il numero di vulnerabilit\u00e0 legate alla memoria (overflow del buffer, accesso a memoria gi\u00e0 liberata, ecc.). Questa osservazione conferma l'ipotesi che l'attenzione principale nell'implementazione delle tecniche di programmazione sicura dovrebbe concentrarsi sul nuovo codice piuttosto che sulla riscrittura di quello esistente, poich\u00e9 la maggior parte delle vulnerabilit\u00e0 identificate riguarda il nuovo codice.       <center><img decoding=\"async\" alt=\"Circa il 21% del nuovo codice compilato in Android 13 \u00e8 scritto in Rust.\" src=\"\/wp-content\/uploads\/2022\/12\/754ec48c806a10ebc7dbec33c78241f1.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58249\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Google \u043f\u043e\u0434\u0432\u0435\u043b\u0438 \u043f\u0435\u0440\u0432\u044b\u0435 \u0438\u0442\u043e\u0433\u0438 \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u044f \u0432 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0443 Android \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust. \u0412 Android 13 \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e 21% \u043e\u0442 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043d\u043e\u0432\u043e\u0433\u043e \u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043e \u043d\u0430 Rust, \u0430 79% \u043d\u0430 C\/C++. \u0412 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438 AOSP (Android Open Source Project), \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Android, \u043d\u0430\u0441\u0447\u0438\u0442\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e 1.5 \u043c\u043b\u043d \u0441\u0442\u0440\u043e\u043a \u043a\u043e\u0434\u0430 \u043d\u0430 Rust, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":105816,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105815","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - 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