ALPINE-CVE-2021-22897

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    ALPINE-CVE-2021-22897

    Published: 11 Jun 2021Last Modified: 14 Jul 2026
    Upstream:
    CVE-2021-22897

    Summary:

    Details: curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single "static" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.

    References: https://security.alpinelinux.org/vuln/CVE-2021-22897

    Affected packages

    Package

    Name: curl

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 7.61.0
    Fixed -0

    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-2021-22897 | CVE-DB