{"id":184239,"date":"2026-11-12T11:41:56","date_gmt":"2026-11-12T09:41:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/uyazvimost-v-git-dopuskayushhaya-vypolnenie-koda-pri-klonirovanii-iz-vredonosnogo-git-repozitoriya"},"modified":"2026-11-12T11:42:03","modified_gmt":"2026-11-12T09:42:03","slug":"git-vulnerability-allows-code-execution-when-cloning-a-malicious-git-repository","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/git-vulnerability-allows-code-execution-when-cloning-a-malicious-git-repository","title":{"rendered":"Git sebezhet\u0151s\u00e9ge, amely lehet\u0151v\u00e9 teszi a k\u00f3d v\u00e9grehajt\u00e1s\u00e1t rosszindulat\u00fa Git-t\u00e1rhelyb\u0151l val\u00f3 kl\u00f3noz\u00e1skor","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Megjelentek a Git 2.56.1, 2.55.1, 2.54.1, 2.53.1, 2.52.1, 2.51.3 \u00e9s 2.50.2 verzi\u00f3khoz k\u00e9sz\u00fclt jav\u00edt\u00f3 kiad\u00e1sok, amelyekben 6 biztons\u00e1gi r\u00e9st h\u00e1r\u00edtottak el. A legvesz\u00e9lyesebb biztons\u00e1gi r\u00e9s (CVE-2026-111760) lehet\u0151v\u00e9 teszi a k\u00f3d v\u00e9grehajt\u00e1s\u00e1t a &#171;git clone&#187; parancs &#171;&#8212;recurse-submodules&#187; opci\u00f3j\u00e1val, ha a t\u00e1mad\u00f3 ir\u00e1ny\u00edt\u00e1sa alatt \u00e1ll\u00f3 t\u00e1rol\u00f3b\u00f3l m\u00e1solunk.<\/p>\n<p>A probl\u00e9ma abb\u00f3l ad\u00f3dik, hogy a n\u00e9v hossz\u00fas\u00e1ga az indexben 32 bites eg\u00e9sz t\u00edpus haszn\u00e1lat\u00e1val sz\u00e1m\u00edt\u00f3dik ki. Ha egy nagyon hossz\u00fa n\u00e9v, mint p\u00e9ld\u00e1ul &#171;.git\/&#8230;.&#187; ker\u00fcl \u00e1tad\u00e1sra, eg\u00e9sz sz\u00e1m t\u00falcsordul\u00e1s l\u00e9phet fel, ami lehet\u0151v\u00e9 teszi, hogy a t\u00e1mad\u00f3 egy 4 b\u00e1jtos hossz\u00fas\u00e1g\u00fa \u00e9rt\u00e9ket sz\u00e1m\u00edtson ki. Ennek k\u00f6vetkezt\u00e9ben az \u00e9rt\u00e9k ellen\u0151rz\u00e9sekor a t\u00e9nyleges adatokat haszn\u00e1lj\u00e1k, m\u00edg a m\u0171velet v\u00e9grehajt\u00e1sakor a &#171;.git&#187; ler\u00f6vid\u00edtett v\u00e1ltozata ker\u00fcl felhaszn\u00e1l\u00e1sra, lehet\u0151v\u00e9 t\u00e9ve a t\u00e1mad\u00f3 sz\u00e1m\u00e1ra, hogy a &#171;.git&#187; f\u00e1jlt szimbolikus linkre cser\u00e9lje, amely egy be\u00e1ll\u00edt\u00e1sokat \u00e9s hookokat tartalmaz\u00f3 k\u00f6nyvt\u00e1rra mutat.<\/p>\n<p>Egy\u00e9b sebezhet\u0151s\u00e9gek:<\/p>\n<ul>\n<li class=\"l\"> CVE-2026-113408 &#8212; a refs\/ mappa hat\u00e1rainak t\u00fall\u00e9p\u00e9se a HEAD mint \u00e1g szimbolikus linkj\u00e9nek &#171;refs\/heads\/..\/\/..\/\/..\/\/TARGET&#187; \u00e9rt\u00e9k\u00e9nek \u00e1tad\u00e1s\u00e1val egy \u00fcres t\u00e1rol\u00f3 kl\u00f3noz\u00e1sakor a Git v2 protokoll seg\u00edts\u00e9g\u00e9vel. Ezt k\u00f6vet\u0151en a &#171;git commit&#187; parancs v\u00e9grehajt\u00e1sakor TARGET f\u00e1jl j\u00f6n l\u00e9tre a t\u00e1rol\u00f3 gy\u00f6k\u00e9rk\u00f6nyvt\u00e1r\u00e1ban, amely haszn\u00e1lhat\u00f3 f\u00e1jlok fel\u00fcl\u00edr\u00e1s\u00e1ra a t\u00e1rol\u00f3ban \u00e9s k\u00f3d v\u00e9grehajt\u00e1s\u00e1nak megszervez\u00e9s\u00e9re.\n<li class=\"l\"> CVE-2026-114467 &#8212; verem t\u00falcsordul\u00e1s a GPG al\u00e1\u00edr\u00e1sok elt\u00e1vol\u00edt\u00e1sakor, ami potenci\u00e1lisan tetsz\u0151leges k\u00f3d v\u00e9grehajt\u00e1s\u00e1hoz vezethet. A probl\u00e9ma abb\u00f3l ad\u00f3dik, hogy a remove_signature() f\u00fcggv\u00e9ny a k\u00e9t al\u00e1\u00edr\u00e1s maximum\u00e1ra tervezett statikus t\u00f6mbben t\u00e1rolja az al\u00e1\u00edr\u00e1sok poz\u00edci\u00f3it. Ha olyan c\u00edmk\u00e9t adnak \u00e1t, amely h\u00e1rom vagy ann\u00e1l t\u00f6bb al\u00e1\u00edr\u00e1st tartalmaz, az adatok a t\u00f6mb\u00f6n k\u00edv\u00fcl t\u00e1rol\u00f3dnak.\n<li class=\"l\"> CVE-2026-114469 &#8212; a bin\u00e1ris patch-ek m\u00e9retkorl\u00e1toz\u00e1sainak ellen\u0151rz\u00e9sekor a t\u00f6m\u00f6r\u00edtett adatok kicsomagol\u00e1sa el\u0151tti adatok figyelembev\u00e9tel\u00e9re ker\u00fclt sor, ami a pufferen k\u00edv\u00fcli mem\u00f3ria tartalm\u00e1nak olvas\u00e1s\u00e1hoz vezetett.\n<li class=\"l\"> CVE-2026-105437 &#8212; mem\u00f3ria s\u00e9r\u00fcl\u00e9se nagym\u00e9ret\u0171 egyes\u00edt\u00e9si m\u0171veletek v\u00e9grehajt\u00e1sakor a r\u00e9sultat m\u00e9ret\u00e9nek felhalmoz\u00f3d\u00e1sa miatt egy int t\u00edpus\u00fa mez\u0151ben. A GitLab konfigur\u00e1ci\u00f3j\u00e1ban a sebezhet\u0151s\u00e9g k\u00f3d v\u00e9grehajt\u00e1s\u00e1ra haszn\u00e1lhat\u00f3 (a probl\u00e9ma blokkolva van a GitLab 19.5.4 verzi\u00f3j\u00e1ban).\n<li class=\"l\"> CVE-2026-114466 &#8212; tetsz\u0151leges f\u00e1jlok fel\u00fcl\u00edr\u00e1sa a f\u00e1jlrendszerben a &#171;git fast-import&#187; parancs haszn\u00e1lat\u00e1val a CVE-2019-1348 sebezhet\u0151s\u00e9g r\u00e9szleges elt\u00e1vol\u00edt\u00e1sa miatt.\n<\/ul>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=66669\">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 \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u043c \u043a\u043e\u0434\u043e\u043c Git 2.56.1, 2.55.1, 2.54.1, 2.53.1, 2.52.1, 2.51.3 \u0438 2.50.2, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e 6 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2026-111760) \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0438 \u043a\u043e\u043c\u0430\u043d\u0434\u044b &#171;git clone&#187; \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 &#171;&#8212;recurse-submodules&#187; \u0441 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f\u043c\u0438, \u043f\u043e\u0434\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c\u043d\u044b\u043c\u0438 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u0442\u0435\u043c, \u0447\u0442\u043e \u0434\u043b\u0438\u043d\u0430 \u0437\u0430\u043f\u0438\u0441\u0438 \u0441 \u0438\u043c\u0435\u043d\u0435\u043c \u0432 \u0438\u043d\u0434\u0435\u043a\u0441\u0435 \u0432\u044b\u0447\u0438\u0441\u043b\u044f\u0435\u0442\u0441\u044f \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-184239","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u043c \u043a\u043e\u0434\u043e\u043c Git 2.56.1, 2.55.1, 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