{"id":99397,"date":"2021-03-09T22:22:47","date_gmt":"2021-03-09T20:22:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obnovlenie-git-s-ustraneniem-uyazvimosti-dopuskayushhej-udalyonnoe-vypolnenie-koda"},"modified":"2021-03-09T22:22:47","modified_gmt":"2021-03-09T20:22:47","slug":"obnovlenie-git-s-ustraneniem-uyazvimosti-dopuskayushhej-udalyonnoe-vypolnenie-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/obnovlenie-git-s-ustraneniem-uyazvimosti-dopuskayushhej-udalyonnoe-vypolnenie-koda","title":{"rendered":"Aktualizace Gitu s odstran\u011bn\u00edm zranitelnosti umo\u017e\u0148uj\u00edc\u00ed vzd\u00e1len\u00e9 spu\u0161t\u011bn\u00ed k\u00f3du","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Byly vyd\u00e1ny opraven\u00e9 verze distribuovan\u00e9ho syst\u00e9mu spr\u00e1vy zdrojov\u00e9ho k\u00f3du Git 2.30.2, 2.17.6, 2.18.5, 2.19.6, 2.20.5, 2.21.4, 2.22.5, 2.23.4, 2.24.4, 2.25.5, 2.26.3, 2.27.1, 2.28.1 a 2.29.3, kter\u00e9 odstra\u0148uj\u00ed zranitelnost (CVE-2021-21300), je\u017e umo\u017e\u0148uje vzd\u00e1len\u00e9 spu\u0161t\u011bn\u00ed k\u00f3du p\u0159i klonov\u00e1n\u00ed repozit\u00e1\u0159e \u00fato\u010dn\u00edka pomoc\u00ed p\u0159\u00edkazu «git clone». Zraniteln\u00e9 jsou v\u0161echny verze Git od verze 2.15. <\/p>\n

Probl\u00e9m se projevuje p\u0159i pou\u017eit\u00ed odlo\u017een\u00fdch operac\u00ed checkout, kter\u00e9 se pou\u017e\u00edvaj\u00ed v n\u011bkter\u00fdch \u010dist\u00edc\u00edch filtrech, jako jsou ty, kter\u00e9 jsou konfigurov\u00e1ny v Git LFS. Zranitelnost lze vyu\u017e\u00edt pouze ve souborov\u00fdch syst\u00e9mech, kter\u00e9 nerozli\u0161uj\u00ed velikost p\u00edsmen, ale podporuj\u00ed symbolick\u00e9 odkazy, jako je NTFS, HFS+ a APFS (tj. na platform\u00e1ch Windows a macOS). <\/p>\n

Jako obran\u00e9 opat\u0159en\u00ed lze v git vypnout zpracov\u00e1n\u00ed symbolick\u00fdch odkaz\u016f pomoc\u00ed p\u0159\u00edkazu «git config —global core.symlinks false», nebo zak\u00e1zat podporu filtr\u016f proces\u016f p\u0159\u00edkazem «git config —show-scope —get-regexp ‘filter\..*\.process'». Tak\u00e9 se doporu\u010duje vyhnout se klonov\u00e1n\u00ed neov\u011b\u0159en\u00fdch repozit\u00e1\u0159\u016f.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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\u0438 \u0442\u0435\u043a\u0441\u0442\u0430\u043c\u0438 Git 2.30.2, 2.17.6, 2.18.5, 2.19.6, 2.20.5, 2.21.4, 2.22.5, 2.23.4, 2.24.4, 2.25.5, 2.26.3, 2.27.1, 2.28.1 \u0438 2.29.3, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2021-21300), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 \u043f\u0440\u0438 \u043a\u043b\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0438 \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0430 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043a\u043e\u043c\u0430\u043d\u0434\u044b «git clone». \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u044b \u0432\u0441\u0435 \u0432\u044b\u043f\u0443\u0441\u043a\u0438 Git, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 2.15. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u0438 […]<\/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-99397","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Aktualizace Gitu s odstran\u011bn\u00edm zranitelnosti, kter\u00e1 umo\u017e\u0148uje vzd\u00e1len\u00e9 spu\u0161t\u011bn\u00ed k\u00f3du | ProHoster","description":"Byly zve\u0159ejn\u011bny opravy pro distribuovan\u00fd syst\u00e9m spr\u00e1vy verz\u00ed Git 2.30.2, 2.17.6, 2.18.5, 2.19.6, 2.20.5, 2.21.4, 2.22.5, 2.23.4, 2.24.4, 2.25.5, 2.26.3, 2.27.1, 2.28.1 a 2.29.3, ve 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