USN-5286-1

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    USN-5286-1

    Published: 15 Feb 2022Last Modified: 22 Apr 2026

    Summary: cryptsetup vulnerability

    Details: Milan Broz discovered that cryptsetup incorrectly handled LUKS2 reencryption recovery. An attacker with physical access to modify the encrypted device header may trigger the device to be unencrypted the next time it is mounted by the user. On Ubuntu 20.04 LTS, this issue was fixed by disabling the online reencryption feature.

    References: https://ubuntu.com/security/notices/USN-5286-1, https://ubuntu.com/security/CVE-2021-4122

    Affected packages

    Package

    Name: cryptsetup

    Purl: pkg:deb/ubuntu/cryptsetup@2:2.2.2-3ubuntu2.4?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:2.2.2-3ubuntu2.4

    Affected versions

    2:2.2.0-3ubuntu1
    2:2.2.1-1ubuntu1
    2:2.2.2-1ubuntu1
    2:2.2.2-2ubuntu1
    2:2.2.2-3ubuntu1
    2:2.2.2-3ubuntu2
    2:2.2.2-3ubuntu2.2
    2:2.2.2-3ubuntu2.3

    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