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- Snyk ID SNYK-CENTOS8-CURL-2119102
- published 26 Jul 2021
- disclosed 21 Jul 2021
How to fix?
curl to version 0:7.61.1-18.el8_4.1 or higher.
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
Centos:8 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.