{"id":104243,"date":"2022-06-05T15:36:39","date_gmt":"2022-06-05T13:36:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-coreboot-4-17"},"modified":"2022-06-05T15:36:39","modified_gmt":"2022-06-05T13:36:39","slug":"vypusk-coreboot-4-17","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/vypusk-coreboot-4-17","title":{"rendered":"Publication de Coreboot 4.17","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La version 4.17 du projet CoreBoot a \u00e9t\u00e9 publi\u00e9e, d\u00e9veloppant une alternative libre aux firmwares propri\u00e9taires et aux BIOS. Le code du projet est distribu\u00e9 sous la licence GPLv2. 150 d\u00e9veloppeurs ont particip\u00e9 \u00e0 la cr\u00e9ation de cette nouvelle version, apportant plus de 1300 modifications.       <\/p>\n<p>Principales modifications :   <\/p>\n<ul>\n<li class=\"l\"> Une vuln\u00e9rabilit\u00e9 (CVE-2022-29264) a \u00e9t\u00e9 corrig\u00e9e, se manifestant dans les versions CoreBoot de 4.13 \u00e0 4.16, permettant l'ex\u00e9cution de code au niveau SMM (System Management Mode) sur des syst\u00e8mes avec un AP (Application Processor), avec un niveau de priorit\u00e9 sup\u00e9rieur (Ring -2) \u00e0 celui de l'hyperviseur et du niveau de protection z\u00e9ro, ayant un acc\u00e8s illimit\u00e9 \u00e0 toute la m\u00e9moire. Ce probl\u00e8me \u00e9tait caus\u00e9 par une invocation incorrecte du gestionnaire SMI dans le module smm_module_loader.\n<li class=\"l\"> Support ajout\u00e9 pour 12 cartes m\u00e8res, dont 5 sont utilis\u00e9es sur des appareils avec Chrome OS ou sur <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/server\/dts-gdansk\/\"   title=\"serveurs\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4540\">serveurs<\/a> Google. Parmi les cartes non li\u00e9es \u00e0 Google :\n<ul>\n<li class=\"l\"> Clevo L140MU \/ L141MU \/ L142MU\n<li class=\"l\"> Dell Precision T1650\n<li class=\"l\">  Station de travail HP Z220 CMT\n<li class=\"l\">  Star Labs LabTop Mk III (i7-8550u), LabTop Mk IV (i3-10110U, i7-10710U), Lite Mk III (N5000) et Lite Mk IV (N5030).  <\/ul>\n<li class=\"l\"> Le support pour les cartes m\u00e8res Google Deltan et Deltaur a \u00e9t\u00e9 interrompu.\n<li class=\"l\"> Un nouveau payload coreDOOM a \u00e9t\u00e9 ajout\u00e9, permettant de lancer le jeu DOOM depuis Coreboot. Le projet utilise du code doomgeneric, port\u00e9 sur libpayload. Un framebuffer lin\u00e9aire Coreboot est utilis\u00e9 pour l'affichage, et les fichiers WAD contenant les ressources du jeu sont charg\u00e9s depuis le CBFS.\n<li class=\"l\"> Les composants payload SeaBIOS 1.16.0 et iPXE 2022.1 ont \u00e9t\u00e9 mis \u00e0 jour.\n<li class=\"l\"> Un mode SeaGRUB (GRUB2 au-dessus de SeaBIOS) a \u00e9t\u00e9 ajout\u00e9, permettant d'utiliser les appels de rappel fournis par SeaBIOS dans GRUB2, par exemple pour acc\u00e9der au mat\u00e9riel, qui n'est pas accessible depuis le payload GRUB2.\n<li class=\"l\"> Une protection contre l'attaque SinkHole a \u00e9t\u00e9 ajout\u00e9e, permettant l'ex\u00e9cution de code au niveau SMM (System Management Mode).\n<li class=\"l\"> Une fonctionnalit\u00e9 int\u00e9gr\u00e9e de g\u00e9n\u00e9ration de tables de pages de m\u00e9moire statiques \u00e0 partir de fichiers assembleurs a \u00e9t\u00e9 mise en \u0153uvre, sans n\u00e9cessiter l'appel d'utilitaires tiers.\n<li class=\"l\"> L'enregistrement d'informations de d\u00e9bogage dans la console CBMEMC depuis les gestionnaires SMI est autoris\u00e9 lors de l'utilisation de DEBUG_SMI.\n<li class=\"l\"> Le syst\u00e8me de gestion des initialisations CBMEM a \u00e9t\u00e9 modifi\u00e9, rempla\u00e7ant les gestionnaires li\u00e9s aux \u00e9tapes *_CBMEM_INIT_HOOK par deux gestionnaires CBMEM_CREATION_HOOK (utilis\u00e9 \u00e0 la phase initiale, cr\u00e9ant cbmem) et CBMEM_READY_HOOK (utilis\u00e9 \u00e0 toutes les phases o\u00f9 cbmem est d\u00e9j\u00e0 cr\u00e9\u00e9).\n<li class=\"l\"> Le support de PSB (Platform Secure Boot) a \u00e9t\u00e9 ajout\u00e9, activ\u00e9 par le processeur PSP (Platform Security Processor) pour v\u00e9rifier l'int\u00e9grit\u00e9 du BIOS par signature num\u00e9rique.\n<li class=\"l\"> Une impl\u00e9mentation propre du gestionnaire de d\u00e9bogage des donn\u00e9es, transf\u00e9r\u00e9es depuis le FSP (FSP Debug Handler), a \u00e9t\u00e9 ajout\u00e9e.\n<li class=\"l\"> Ajout de fonctions sp\u00e9cifiques au fournisseur pour TIS (TPM Interface Specification) afin de lire et d'\u00e9crire directement dans les registres TPM (Trusted Platform Module) \u2014 tis_vendor_read() et tis_vendor_write().\n<li class=\"l\"> Support de l'interception des d\u00e9r\u00e9f\u00e9rencements de pointeurs nuls via des registres de d\u00e9bogage ajout\u00e9.\n<li class=\"l\"> D\u00e9tection des appareils i2c mise en \u0153uvre, facilitant le travail avec des cartes \u00e9quip\u00e9es de pav\u00e9s tactiles ou d'\u00e9crans tactiles de diff\u00e9rents fabricants.\n<li class=\"l\"> Possibilit\u00e9 d'enregistrement des donn\u00e9es temporelles au format adapt\u00e9 \u00e0 la g\u00e9n\u00e9ration de graphiques FlameGraph, montrant clairement le temps consacr\u00e9 \u00e0 diff\u00e9rentes \u00e9tapes du d\u00e9marrage ajout\u00e9e.\n<li class=\"l\"> L'utilitaire cbmem a ajout\u00e9 l'option d'ajouter \u00e0 la table cbmem \u00ab timestamp \u00bb le temps depuis l'espace utilisateur, permettant de refl\u00e9ter dans cbmem les \u00e9v\u00e9nements aux \u00e9tapes ex\u00e9cut\u00e9es apr\u00e8s CoreBoot.      <\/ul>\n<p>Il convient \u00e9galement de noter la publication d'une lettre ouverte par la fondation OSFF (Open-Source Firmware Foundation) \u00e0 l'intention d'Intel, proposant de rendre les ensembles de support de firmware (FSP, Firmware Support Package) plus modulaires et de commencer \u00e0 publier la documentation li\u00e9e \u00e0 l'initialisation des SoC Intel. L'absence de code FSP complique consid\u00e9rablement la cr\u00e9ation de firmwares ouverts et entrave la promotion des projets Coreboot, U-Boot et LinuxBoot sur le mat\u00e9riel Intel. Une initiative similaire ant\u00e9rieure a \u00e9t\u00e9 couronn\u00e9e de succ\u00e8s, et Intel a ouvert le code des firmwares demand\u00e9s par la communaut\u00e9 pour le bloc PSE (Programmable Services Engine).<br \/>\n<br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57303\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 CoreBoot 4.17, \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u0430\u044f \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u0430 \u043f\u0440\u043e\u043f\u0440\u0438\u0435\u0442\u0430\u0440\u043d\u044b\u043c \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u043c \u0438 BIOS. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 GPLv2. \u0412 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0438 \u043d\u043e\u0432\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u043f\u0440\u0438\u043d\u044f\u043b\u043e \u0443\u0447\u0430\u0441\u0442\u0438\u0435 150 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 1300 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0423\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2022-29264), \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u044e\u0449\u0430\u044f\u0441\u044f \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 CoreBoot \u0441 4.13 \u043f\u043e 4.16 \u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 AP (Application Processor) [&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-104243","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - 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