ALPINE-CVE-2021-22922

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    ALPINE-CVE-2021-22922

    Published: 5 Aug 2021Last Modified: 27 Aug 2026
    Upstream:
    CVE-2021-22922

    Summary:

    Details: 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.

    References: https://security.alpinelinux.org/vuln/CVE-2021-22922

    Affected packages

    Package

    Name: curl

    Purl: pkg:apk/alpine/curl?arch=source

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 7.27.0
    Fixed -7.78.0-r0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    ALPINE-CVE-2021-22922 | CVE-DB