{"id":149133,"date":"2025-11-21T17:11:55","date_gmt":"2025-11-21T15:11:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/6-uyazvimostej-v-zagruzchike-grub2-pozvolyayushhih-obojti-uefi-secure-boot"},"modified":"2025-11-21T17:11:55","modified_gmt":"2025-11-21T15:11:55","slug":"6-uyazvimostej-v-zagruzchike-grub2-pozvolyayushhih-obojti-uefi-secure-boot","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/6-uyazvimostej-v-zagruzchike-grub2-pozvolyayushhih-obojti-uefi-secure-boot","title":{"rendered":"6 do vulnerabiliteteve n\u00eb ngarkuesin GRUB2 q\u00eb lejojn\u00eb kalimin e UEFI Secure Boot","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>S\u00eb fundmi \u00ebsht\u00eb publikuar nj\u00eb grup patches p\u00ebr rregullimin e 6 vulnerabiliteteve n\u00eb ngarkuesin GRUB2, shumica e t\u00eb cilave \u00e7on n\u00eb qasje n\u00eb memorie pas \u00e7lirimit t\u00eb saj (use-after-free). Problemet e identifikuara mund t\u00eb p\u00ebrdoren p\u00ebr t\u00eb anashkaluar mekanizmin e verifikimit t\u00eb ngarkes\u00ebs UEFI Secure Boot. Statusi i eliminimit t\u00eb vulnerabiliteteve n\u00eb distribucione mund t\u00eb vler\u00ebsohet n\u00eb k\u00ebto faqe: Debian, Ubuntu, SUSE, RHEL, Arch dhe Fedora. P\u00ebr t\u00eb rregulluar problemet n\u00eb GRUB2, nuk mjafton thjesht t\u00eb p\u00ebrdit\u00ebsohet paketa, por gjithashtu k\u00ebrkohet t\u00eb krijohen n\u00ebnshkrime t\u00eb reja digjitale t\u00eb brendshme dhe t\u00eb p\u00ebrdit\u00ebsohen instaluesit, ngarkuesit, paketat e b\u00ebrtham\u00ebs, firmat fwupd dhe shtresa shim.         <\/p>\n<p>Vulnerabilitetet e identifikuara:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2025-61661 \u2014 shkrimi p\u00ebrtej memories s\u00eb alokuar n\u00eb funksionin grub_usb_get_string(), i cili mund t\u00eb shfryt\u00ebzohet gjat\u00eb p\u00ebrpunimit t\u00eb vargjeve n\u00eb kodimin UTF-8 dhe UTF-16, q\u00eb d\u00ebrgohen gjat\u00eb lidhjes s\u00eb pajisjeve USB. Problemi shkaktohet nga fakti se memoria u alokua n\u00eb p\u00ebrputhje me madh\u00ebsin\u00eb e vargut t\u00eb specifikuar n\u00eb mesazhin e par\u00eb t\u00eb pajisjes USB, nd\u00ebrsa madh\u00ebsia gjat\u00eb ekzekutimit t\u00eb transformimit t\u00eb kodimit llogaritej n\u00eb p\u00ebrputhje me operacionet pasuese t\u00eb leximit nga pajisja USB. Prandaj, p\u00ebr nj\u00eb sulm mund t\u00eb p\u00ebrdoret nj\u00eb pajisje USB e modifikuar, e cila fillimisht kthen nj\u00eb vler\u00eb t\u00eb zvog\u00ebluar t\u00eb madh\u00ebsis\u00eb.\n<li class=\"l\"> CVE-2025-61663, CVE-2025-61664, CVE-2025-54770, CVE-2025-61662 \u2014 mungesa e pastrimit t\u00eb menaxher\u00ebve t\u00eb komandave \u00abnormal\u00bb, \u00abnormal_exit\u00bb, \u00abnet_set_vlan\u00bb dhe \u00abgettext\u00bb gjat\u00eb shkarkimit t\u00eb moduleve \u00abnormal\u00bb, \u00abnet\u00bb dhe \u00abgettext\u00bb, duke krijuar kushte p\u00ebr qasjen n\u00eb memorje pas \u00e7lirimit t\u00eb saj (use-after-free) n\u00eb rast t\u00eb ekzekutimit t\u00eb komandave t\u00eb sh\u00ebnuara pas shkarkimit t\u00eb moduleve p\u00ebrkat\u00ebse. Vulnerabilitete t\u00eb ngjashme jan\u00eb gjetur gjithashtu p\u00ebr komandat \u00abfunctional_test\u00bb dhe \u00aball_functional_test\u00bb, por ato nuk kan\u00eb marr\u00eb identifikues CVE, pasi k\u00ebto komanda b\u00ebjn\u00eb pjes\u00eb n\u00eb bibliotek\u00ebn e testeve dhe nuk duhet t\u00eb p\u00ebrfshihen n\u00eb nd\u00ebrtimet e pun\u00ebs.\n<li class=\"l\"> CVE-2025-54771 \u2014 nj\u00eb gabim gjat\u00eb num\u00ebrimit t\u00eb referencave n\u00eb strukturat \u00abfs\u00bb n\u00eb funksionin grub_file_close(), q\u00eb \u00e7on n\u00eb qasje n\u00eb memorje pas \u00e7lirimit t\u00eb saj (use-after-free).        <\/ul>\n<p>N\u00eb shumic\u00ebn e distribucioneve Linux, p\u00ebr ngarkimin e verifikuar n\u00eb modalitetin UEFI Secure Boot p\u00ebrdoret nj\u00eb shtres\u00eb e vog\u00ebl shim, e verifikuar me n\u00ebnshkrim digjital nga Microsoft. Kjo shtres\u00eb vler\u00ebson GRUB2 me certifikat\u00ebn e vet, q\u00eb u lejon zhvilluesve t\u00eb distribucioneve t\u00eb mos e verifikojn\u00eb \u00e7do p\u00ebrdit\u00ebsim t\u00eb bllokut dhe GRUB n\u00eb Microsoft. Vulnerabilitetet n\u00eb GRUB2 lejojn\u00eb ekzekutimin e kodit t\u00eb tyre pas verifikimit t\u00eb suksessh\u00ebm t\u00eb shim, por para ngarkimit t\u00eb sistemit operacional, duke u futur n\u00eb zinxhirin e besimit me modulin Secure Boot aktiv dhe duke fituar kontroll t\u00eb plot\u00eb mbi procesin e ngarkimit, p\u00ebr shembull, p\u00ebr ngarkimin e nj\u00eb sistemi tjet\u00ebr operativ, modifikimin e komponenteve t\u00eb sistemit operativ dhe anashkalimin e mbrojtjes Lockdown.     <\/p>\n<p>P\u00ebr t\u00eb bllokuar vulnerabilitetin pa t\u00ebrheqjen e n\u00ebnshkrimit dixhital, shp\u00ebrndarjet mund t\u00eb p\u00ebrdorin mekanizmin SBAT (UEFI Secure Boot Advanced Targeting), mb\u00ebshtetje e t\u00eb cilit \u00ebsht\u00eb zbatuar p\u00ebr GRUB2, shim dhe fwupd n\u00eb shumic\u00ebn e shp\u00ebrndarjeve t\u00eb njohura Linux. SBAT-u \u00ebsht\u00eb zhvilluar n\u00eb bashk\u00ebpunim me Microsoft dhe n\u00ebnkupton shtimin n\u00eb skedar\u00ebt ekzekutiv\u00eb t\u00eb komponent\u00ebve UEFI t\u00eb metadatat shtes\u00eb, t\u00eb cilat p\u00ebrfshijn\u00eb informacionin mbi prodhuesin, produktin, komponentin dhe versionin. Metaet e p\u00ebrmendura n\u00ebnshkruhen me nj\u00eb n\u00ebnshkrim dixhital dhe mund t\u00eb p\u00ebrfshihen ve\u00e7mas n\u00eb listat e lejuara ose t\u00eb ndaluara t\u00eb komponent\u00ebve p\u00ebr UEFI Secure Boot.      <\/p>\n<p>SBAT lejon q\u00eb t\u00eb bllokoni p\u00ebrdorimin e n\u00ebnshkrimit digjital p\u00ebr numra t\u00eb ve\u00e7ant\u00eb versioni t\u00eb komponenteve pa pasur nevoj\u00eb t\u00eb revokoni \u00e7el\u00ebsat p\u00ebr Secure Boot. Bllokimi i dob\u00ebsive p\u00ebrmes SBAT nuk k\u00ebrkon p\u00ebrdorimin e listes s\u00eb certifikatatve t\u00eb revokuara UEFI (dbx), dhe realizohet n\u00eb nivelin e nd\u00ebrrimit t\u00eb \u00e7el\u00ebsit t\u00eb brendsh\u00ebm p\u00ebr formimin e n\u00ebnshkrimeve dhe p\u00ebrdit\u00ebsimin e GRUB2, shim dhe artefakteve t\u00eb ngarkes\u00ebs t\u00eb ofruara nga shp\u00ebrndarjet e tjera. Para zbatimit t\u00eb SBAT, p\u00ebrdit\u00ebsimi i listes s\u00eb certifikatatve t\u00eb revokuara (dbx, UEFI Revocation List) ishte nj\u00eb kusht i domosdosh\u00ebm p\u00ebr bllokimin e plot\u00eb t\u00eb dob\u00ebsis\u00eb, pasi nj\u00eb sulmues, pavar\u00ebsisht sistemit operativ t\u00eb p\u00ebrdorur, mund t\u00eb p\u00ebrdorte nj\u00eb media ngarkese me nj\u00eb version t\u00eb vjet\u00ebr dhe t\u00eb dob\u00ebt t\u00eb GRUB2, t\u00eb v\u00ebrtetuar me n\u00ebnshkrim digjital.<br \/>\n<br \/>Burimi: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64298\">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 \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c 6 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \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\u0438\u0442 \u043a \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u044e \u043a \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u043e\u0441\u043b\u0435 \u0435\u0451 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (use-after-free). \u041f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043d\u044b\u0435 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \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. \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, Arch \u0438 Fedora. \u0414\u043b\u044f \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c [&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-149133","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c 6 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \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 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\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, Arch \u0438 Fedora. \u0414\u043b\u044f \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\" \/>\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\/sq\/blog\/novosti-interneta\/6-uyazvimostej-v-zagruzchike-grub2-pozvolyayushhih-obojti-uefi-secure-boot\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"sq_AL\" \/>\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\udd476 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u043e\u0431\u043e\u0439\u0442\u0438 UEFI Secure Boot | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 \u0441 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0435\u043c 6 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\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. \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, Arch \u0438 Fedora. \u0414\u043b\u044f \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/6-uyazvimostej-v-zagruzchike-grub2-pozvolyayushhih-obojti-uefi-secure-boot\" \/>\n\t\t<meta property=\"og:image\" 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n\u00eb ngarkuesin GRUB2, shumica e t\u00eb cilave \u00e7ojn\u00eb n\u00eb aksesimin e memories pas \u00e7lirimit t\u00eb saj (use-after-free). Problemet e mundshme t\u00eb identifikuara mund t\u00eb p\u00ebrdoren p\u00ebr t\u00eb anashkaluar mekanizmin e verifikimit t\u00eb ngarkes\u00ebs UEFI Secure Boot. Statusi i eliminimit t\u00eb vulnerabiliteteve n\u00eb shp\u00ebrndarje mund t\u00eb vler\u00ebsohet n\u00eb k\u00ebto faqe: Debian, Ubuntu, SUSE, RHEL, Arch dhe Fedora. 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