CVE-2021-22922

CVE-2021-22922

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When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk.

CVSS 6.5 · Средний · EPSS 4,3% · Есть исправление

Опубликовано

2021-08-05T00:00:00.000Z

Обновлено

2026-10-14T10:37:13.873Z

Стек: system

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