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- Snyk ID SNYK-DEBIAN11-CURL-1322667
- published 22 Jul 2021
- disclosed 5 Aug 2021
Introduced: 22 Jul 2021CVE-2021-22922 Open this link in a new tab
How to fix?
There is no fixed version for
Note: Versions mentioned in the description apply only to the upstream
curl package and not the
curl package as distributed by
How to fix? for
Debian:11 relevant fixed versions and status.
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.