{"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\/no\/blog\/news\/git-vulnerability-allows-code-execution-when-cloning-a-malicious-git-repository","title":{"rendered":"En s\u00e5rbarhet i Git som tillater kodekj\u00f8ring ved kloning fra et ondsinnet Git-repositorium","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Korrigerte utgaver av det distribuerte versjonsh\u00e5ndteringssystemet Git 2.56.1, 2.55.1, 2.54.1, 2.53.1, 2.52.1, 2.51.3 og 2.50.2 er publisert, hvor 6 s\u00e5rbarheter er blitt rettet. Den mest alvorlige s\u00e5rbarheten (CVE-2026-111760) tillater kj\u00f8ring av kode ved bruk av kommandoen \u00abgit clone\u00bb i \u00ab--recurse-submodules\u00bb-modus med angriperens kontrollerte depot.<\/p>\n<p>Problemet skyldes at lengden p\u00e5 indeksenavnet beregnes med et 32-bits heltall. N\u00e5r et veldig langt navn som \u00ab.git\/...\u00bb overf\u00f8res, oppst\u00e5r det et heltallsoverskudd, og angriperen kan oppn\u00e5 en lengde som tilsvarer 4 byte. Som et resultat brukes de faktiske dataene ved sjekk av verdien, mens en avkortet versjon av \u00ab.git\u00bb utf\u00f8res, noe som tillater angriperen \u00e5 erstatte filen \u00ab.git\u00bb i delmodulen med en symbolsk lenke som peker til en katalog med innstillinger og hooks.<\/p>\n<p>Andre s\u00e5rbarheter:<\/p>\n<ul>\n<li class=\"l\"> CVE-2026-113408 \u2014 utgang utenfor katalogen refs\/ ved \u00e5 overf\u00f8re en symbolsk lenke med verdien \u00abrefs\/heads\/..\/..\/....\/TARGET\u00bb som gren HEAD ved kloning av et tomt depot via Git v2. Ved p\u00e5f\u00f8lgende utf\u00f8relse av \u00abgit commit\u00bb vil en fil TARGET bli opprettet i roten av depotet, som kan brukes til \u00e5 overskrive filer i depotet og organisere kj\u00f8ringen av kode.\n<li class=\"l\"> CVE-2026-114467 \u2014 stakkoverbelastning ved fjerning av GPG-signaturer, som potensielt kan f\u00f8re til utf\u00f8relse av vilk\u00e5rlig kode. Problemet skyldes at funksjonen remove_signature() lagrer signaturposisjoner i en fast matrise, beregnet for maks to signaturer. N\u00e5r en tag med tre eller flere signaturer overf\u00f8res, lagres dataene utenfor matrisen.\n<li class=\"l\"> CVE-2026-114469 \u2014 ved sjekk av begrensninger p\u00e5 st\u00f8rrelsen p\u00e5 bin\u00e6re patcher ble det vurdert data f\u00f8r opppakking av komprimerte data, noe som f\u00f8rte til lesing av innhold fra omr\u00e5der utenfor buffergrensene.\n<li class=\"l\"> CVE-2026-105437 \u2014 minne\u00f8deleggelser ved utf\u00f8relse av store sammensl\u00e5ingsoperasjoner p\u00e5 grunn av akkumulering av resultatst\u00f8rrelsen i et felt med typen int. I GitLab-konfigurasjonen kan s\u00e5rbarheten utnyttes til \u00e5 utf\u00f8re kode (problemet er blokkert i GitLab 19.5.4).\n<li class=\"l\"> CVE-2026-114466 \u2014 overskrivning av vilk\u00e5rlige filer i FS via kommandoen \u00abgit fast-import\u00bb p\u00e5 grunn av utilstrekkelig fjerning av s\u00e5rbarheten CVE-2019-1348.\n<\/ul>\n<p>Kilde: <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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