CVE-2021-3979

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    CVE-2021-3979

    Published: 25 Aug 2022Last Modified: 8 Jul 2026

    Summary:

    Details: A key length flaw was found in Red Hat Ceph Storage. An attacker can exploit the fact that the key length is incorrectly passed in an encryption algorithm to create a non random key, which is weaker and can be exploited for loss of confidentiality and integrity on encrypted disks.

    References: https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html, https://lists.debian.org/debian-lts-announce/2025/09/msg00025.html, https://access.redhat.com/security/cve/CVE-2021-3979, https://bugzilla.redhat.com/show_bug.cgi?id=2024788, https://tracker.ceph.com/issues/54006, https://github.com/ceph/ceph/commit/47c33179f9a15ae95cc1579a421be89378602656, https://github.com/ceph/ceph/pull/44765, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPOK44BESMIFW6BIOGCN452AKKOIIT6Q/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 457c145aefd30a852f525fbf76a871f676502c0a
    Fixed -None

    Affected versions

    13.0

    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
    CVE-2021-3979 | CVE-DB