{"id":122049,"date":"2025-02-22T02:22:05","date_gmt":"2025-02-22T00:22:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-zagruzchike-grub2-vyyavlena-21-uyazvimost"},"modified":"2025-02-22T02:22:05","modified_gmt":"2025-02-22T00:22:05","slug":"v-zagruzchike-grub2-vyyavlena-21-uyazvimost","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/v-zagruzchike-grub2-vyyavlena-21-uyazvimost","title":{"rendered":"A GRUB2 ind\u00edt\u00f3szerverben 21 sebezhet\u0151s\u00e9g ker\u00fclt felfedez\u00e9sre","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Kider\u00fclt, hogy a GRUB2 bet\u00f6lt\u0151 21 sebezhet\u0151s\u00e9ge tal\u00e1lhat\u00f3, amelyek t\u00f6bbs\u00e9ge puffer t\u00falcsordul\u00e1shoz vezet, \u00e9s haszn\u00e1lhat\u00f3 az UEFI Secure Boot meger\u0151s\u00edtett ind\u00edt\u00e1si mechanizmus\u00e1nak megker\u00fcl\u00e9s\u00e9re. A probl\u00e9m\u00e1kat eddig csak jav\u00edt\u00f3program form\u00e1j\u00e1ban orvosolt\u00e1k. A sebezhet\u0151s\u00e9gek elh\u00e1r\u00edt\u00e1s\u00e1nak \u00e1llapot\u00e1t a k\u00f6vetkez\u0151 oldalakon ellen\u0151rizheti: Debian, Ubuntu, SUSE, RHEL, Fedora. A GRUB2 probl\u00e9m\u00e1k megold\u00e1s\u00e1hoz nem elegend\u0151 csup\u00e1n a csomag friss\u00edt\u00e9se, \u00faj bels\u0151 digit\u00e1lis al\u00e1\u00edr\u00e1sokat is kell l\u00e9trehozni, valamint friss\u00edteni kell az ind\u00edt\u00f3kat, telep\u00edt\u0151ket, a kernel csomagokat, az fwupd firmware-t \u00e9s a shim r\u00e9teget.         <\/p>\n<p>Felt\u00e1rt sebezhet\u0151s\u00e9gek:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2024-45774: puffer hat\u00e1ron t\u00fali \u00edr\u00e1s kifejezetten kialak\u00edtott JPEG-k\u00e9pek elemz\u00e9sekor.\n<li class=\"l\">  CVE-2024-45776, CVE-2024-45777: eg\u00e9sz sz\u00e1mok t\u00falfut\u00e1sa kifejezetten kialak\u00edtott mo-f\u00e1jlok olvas\u00e1sakor, puffer hat\u00e1rain t\u00fal \u00edr\u00e1st okozva.\n<li class=\"l\"> CVE-2024-45778, CVE-2024-45779: eg\u00e9sz sz\u00e1mok t\u00falfut\u00e1sa s\u00e9r\u00fclt BFS f\u00e1jlrendszer kezel\u00e9sekor, ami puffer t\u00falt\u00f6lt\u00e9shez vezet.\n<li class=\"l\"> CVE-2024-45780: eg\u00e9sz sz\u00e1mok t\u00falfut\u00e1sa kifejezetten kialak\u00edtott tar-arch\u00edvumok feldolgoz\u00e1sakor, puffer hat\u00e1ron t\u00fali \u00edr\u00e1st okozva.\n<li class=\"l\"> CVE-2024-45781, CVE-2025-0677: puffer t\u00falt\u00f6lt\u00e9sek s\u00e9r\u00fclt UFS f\u00e1jlrendszerrel val\u00f3 munka sor\u00e1n.\n<li class=\"l\"> CVE-2024-45782, CVE-2025-1125: puffer t\u00falt\u00f6lt\u00e9sek kifejezetten kialak\u00edtott HFS part\u00edci\u00f3 csatol\u00e1sakor.\n<li class=\"l\"> CVE-2025-0622: mem\u00f3ria hozz\u00e1f\u00e9r\u00e9s a felszabad\u00edt\u00e1s ut\u00e1n modulok manipul\u00e1ci\u00f3ja sor\u00e1n, t\u00e1mad\u00f3 k\u00f3d v\u00e9grehajt\u00e1s\u00e1hoz vezethet.\n<li class=\"l\"> CVE-2025-0624: puffer t\u00falt\u00f6lt\u00e9s h\u00e1l\u00f3zati ind\u00edt\u00e1skor.\n<li class=\"l\"> CVE-2025-0678: puffer t\u00falt\u00f6lt\u00e9sek s\u00e9r\u00fclt Squash4 f\u00e1jlrendszerrel val\u00f3 munka sor\u00e1n.\n<li class=\"l\"> CVE-2025-0684: puffer t\u00falt\u00f6lt\u00e9sek szimbolikus hivatkoz\u00e1sokkal val\u00f3 manipul\u00e1ci\u00f3 sor\u00e1n a Reiserfs f\u00e1jlrendszerben.\n<li class=\"l\"> CVE-2025-0685: puffer t\u00falt\u00f6lt\u00e9sek szimbolikus hivatkoz\u00e1sokkal val\u00f3 manipul\u00e1ci\u00f3 sor\u00e1n a JFS f\u00e1jlrendszerben.\n<li class=\"l\"> CVE-2025-0685: puffer t\u00falt\u00f6lt\u00e9sek szimbolikus hivatkoz\u00e1sokkal val\u00f3 manipul\u00e1ci\u00f3 sor\u00e1n a ROMFS f\u00e1jlrendszerben.\n<li class=\"l\"> CVE-2025-0689: puffer t\u00falt\u00f6lt\u00e9sek kifejezetten m\u00f3dos\u00edtott UDF part\u00edci\u00f3val val\u00f3 munka sor\u00e1n.\n<li class=\"l\"> CVE-2025-0690: puffer t\u00falt\u00f6lt\u00e9sek kifejezetten kialak\u00edtott billenty\u0171zetb\u0151l sz\u00e1rmaz\u00f3 adatok megszerz\u00e9sekor.\n<li class=\"l\"> CVE-2025-1118: a Lockdown izol\u00e1ci\u00f3s m\u00f3d megker\u00fcl\u00e9se \u00e9s v\u00e9letlenszer\u0171 mem\u00f3ria tartalom kinyer\u00e9se dump parancs v\u00e9grehajt\u00e1s\u00e1val.\n<li class=\"l\"> CVE-2024-45775: hiba\u00fczenet-ellen\u0151rz\u00e9s hi\u00e1nya mem\u00f3ria foglal\u00e1sakor a megadott argumentumok elemz\u00e9sekor, ami az IVT (Interrupt Vector Table) adatok s\u00e9r\u00fcl\u00e9s\u00e9hez vezethet.\n<li class=\"l\"> CVE-2024-45783: null pointer access when mounting an improper HFS+ filesystem.    <\/ul>\n<p>A legt\u00f6bb Linux disztrib\u00faci\u00f3ban az UEFI Secure Boot ellen\u0151rz\u00f6tt ind\u00edt\u00e1s\u00e1hoz egy kis shim r\u00e9teg haszn\u00e1latos, amelyet a Microsoft digit\u00e1lis al\u00e1\u00edr\u00e1sa hiteles\u00edt. Ez a r\u00e9teg a saj\u00e1t tan\u00fas\u00edtv\u00e1ny\u00e1val ellen\u0151rzi a GRUB2-t, lehet\u0151v\u00e9 t\u00e9ve a disztrib\u00faci\u00f3k fejleszt\u0151i sz\u00e1m\u00e1ra, hogy ne kelljen minden kernel- \u00e9s GRUB-friss\u00edt\u00e9st Microsoft-hiteles\u00edteni. A GRUB2 sebezhet\u0151s\u00e9gei lehet\u0151v\u00e9 teszik, hogy k\u00f3dot hajtsanak v\u00e9gre a shim sikeres ellen\u0151rz\u00e9se ut\u00e1n, de az oper\u00e1ci\u00f3s rendszer bet\u00f6lt\u00e9se el\u0151tt, behatolva a bizalom l\u00e1nc\u00e1ba akt\u00edv Secure Boot \u00fczemm\u00f3dban, \u00e9s teljes ellen\u0151rz\u00e9st megszerezve a tov\u00e1bbi bet\u00f6lt\u00e9si folyamatr\u00f3l, p\u00e9ld\u00e1ul m\u00e1s oper\u00e1ci\u00f3s rendszer bet\u00f6lt\u00e9s\u00e9r\u0151l, az oper\u00e1ci\u00f3s rendszer \u00f6sszetev\u0151inek m\u00f3dos\u00edt\u00e1s\u00e1r\u00f3l \u00e9s a Lockdown v\u00e9delem megker\u00fcl\u00e9s\u00e9r\u0151l.     <\/p>\n<p>A sebezhet\u0151s\u00e9g visszavon\u00e1sa n\u00e9lk\u00fcli blokkol\u00e1s\u00e1hoz a disztrib\u00faci\u00f3k haszn\u00e1lhatj\u00e1k az SBAT mechanizmust (UEFI Secure Boot Advanced Targeting), amelynek t\u00e1mogat\u00e1sa a GRUB2-re, shim-re \u00e9s fwupd-re a legt\u00f6bb n\u00e9pszer\u0171 Linux disztrib\u00faci\u00f3ban megval\u00f3sult. Az SBAT-ot a Microsoft egy\u00fcttm\u0171k\u00f6d\u00e9s\u00e9vel fejlesztett\u00e9k ki, \u00e9s plusz metaadat\u00e1k hozz\u00e1ad\u00e1s\u00e1t jelenti az UEFI komponensek v\u00e9grehajthat\u00f3 f\u00e1jljaihoz, amelyek tartalmazz\u00e1k a gy\u00e1rt\u00f3r\u00f3l, term\u00e9kr\u0151l, komponensr\u0151l \u00e9s verzi\u00f3r\u00f3l sz\u00f3l\u00f3 inform\u00e1ci\u00f3kat. Ezek a metaadatok digit\u00e1lis al\u00e1\u00edr\u00e1ssal hiteles\u00edtettek, \u00e9s k\u00fcl\u00f6n-k\u00fcl\u00f6n is szerepelhetnek az UEFI Secure Boot enged\u00e9lyezett vagy tilthat\u00f3 komponenseinek list\u00e1j\u00e1n.      <\/p>\n<p>Az SBAT lehet\u0151v\u00e9 teszi a digit\u00e1lis al\u00e1\u00edr\u00e1s blokkol\u00e1s\u00e1t a komponensek egyes verzi\u00f3sz\u00e1maihoz an\u00e9lk\u00fcl, hogy sz\u00fcks\u00e9g lenne a Secure Boot kulcsok visszavon\u00e1s\u00e1ra. A sebezhet\u0151s\u00e9gek SBAT \u00fatj\u00e1n t\u00f6rt\u00e9n\u0151 blokkol\u00e1sa nem ig\u00e9nyli az UEFI visszavont tan\u00fas\u00edtv\u00e1nyainak list\u00e1j\u00e1nak (dbx) haszn\u00e1lat\u00e1t, hanem a bels\u0151 kulcs cser\u00e9j\u00e9nek szintj\u00e9n t\u00f6rt\u00e9nik a GRUB2, shim \u00e9s m\u00e1s, disztrib\u00faci\u00f3k \u00e1ltal sz\u00e1ll\u00edtott bet\u00f6lt\u0151 artefaktumok al\u00e1\u00edr\u00e1s\u00e1hoz \u00e9s friss\u00edt\u00e9s\u00e9hez. Az SBAT bevezet\u00e9se el\u0151tt a visszavont tan\u00fas\u00edtv\u00e1nyok list\u00e1j\u00e1nak (dbx, UEFI Revocation List) friss\u00edt\u00e9se k\u00f6telez\u0151 felt\u00e9tele volt a sebezhet\u0151s\u00e9g teljes blokkol\u00e1s\u00e1nak, mivel a t\u00e1mad\u00f3, f\u00fcggetlen\u00fcl a haszn\u00e1lt oper\u00e1ci\u00f3s rendszert\u0151l, egy r\u00e9gi sebezhet\u0151 GRUB2 verzi\u00f3val rendelkez\u0151 boot k\u00f6zeg haszn\u00e1lat\u00e1val tudta kompromitt\u00e1lni az UEFI Secure Boot-ot, amelyet digit\u00e1lis al\u00e1\u00edr\u00e1s hiteles\u00edtett.<br \/>\n<br \/>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62771\">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\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e 21 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2, \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0442 \u043a \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u0431\u0443\u0444\u0435\u0440\u0430 \u0438 \u043c\u043e\u0433\u0443\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0431\u0445\u043e\u0434\u0430 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0432\u0435\u0440\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 UEFI Secure Boot. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u043f\u043e\u043a\u0430 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u0432\u0438\u0434\u0435 \u043f\u0430\u0442\u0447\u0430. \u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430\u0445 \u043c\u043e\u0436\u043d\u043e \u043e\u0446\u0435\u043d\u0438\u0442\u044c \u043d\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\u0445: Debian, Ubuntu, SUSE, RHEL, Fedora. \u0414\u043b\u044f \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0432 GRUB2 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u043f\u0440\u043e\u0441\u0442\u043e [&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-122049","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e 21 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2, \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0442 \u043a \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u0431\u0443\u0444\u0435\u0440\u0430 \u0438 \u043c\u043e\u0433\u0443\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0431\u0445\u043e\u0434\u0430 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0432\u0435\u0440\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 UEFI Secure Boot.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/hu\/blog\/news\/v-zagruzchike-grub2-vyyavlena-21-uyazvimost\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"hu_HU\" \/>\n\t\t<meta property=\"og:site_name\" content=\"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\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0412 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 21 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e 21 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2, \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0442 \u043a \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u0431\u0443\u0444\u0435\u0440\u0430 \u0438 \u043c\u043e\u0433\u0443\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0431\u0445\u043e\u0434\u0430 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0432\u0435\u0440\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 UEFI Secure Boot.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/hu\/blog\/news\/v-zagruzchike-grub2-vyyavlena-21-uyazvimost\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2025-02-22T00:22:05+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2025-02-22T00:22:05+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47 21 sebezhet\u0151s\u00e9g az GRUB2 bootloaderben | ProHoster","description":"Megjelentek inform\u00e1ci\u00f3k 21 GRUB2 bootloader sebezhet\u0151s\u00e9gr\u0151l, amelyek k\u00f6z\u00fcl a legt\u00f6bb puffert\u00falcsordul\u00e1st okoz \u00e9s felhaszn\u00e1lhat\u00f3 az UEFI Secure Boot hiteles\u00edtett ind\u00edt\u00e1si mechanizmus\u00e1nak megker\u00fcl\u00e9s\u00e9re.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/v-zagruzchike-grub2-vyyavlena-21-uyazvimost","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","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\u0412 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 21 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c | ProHoster","og:description":"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0441\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e 21 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2, \u0431\u043e\u043b\u044c\u0448\u0438\u043d\u0441\u0442\u0432\u043e \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u0440\u0438\u0432\u043e\u0434\u044f\u0442 \u043a \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044e \u0431\u0443\u0444\u0435\u0440\u0430 \u0438 \u043c\u043e\u0433\u0443\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0431\u0445\u043e\u0434\u0430 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0432\u0435\u0440\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 UEFI Secure Boot.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/v-zagruzchike-grub2-vyyavlena-21-uyazvimost","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2025-02-22T00:22:05+00:00","article:modified_time":"2025-02-22T00:22:05+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"122049","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-23 10:50:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2026-01-23 10:50:19","updated":"2026-01-23 10:50:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/122049","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=122049"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/122049\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=122049"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=122049"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=122049"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}