MGASA-2021-0494

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    MGASA-2021-0494

    Published: 29 Oct 2021Last Modified: 16 Apr 2026
    Upstream:
    CVE-2021-3429

    Summary: Updated cloud-init packages fix security vulnerability

    Details: cloud-init has the ability to generate and set a randomized password for system users. This functionality is enabled at runtime by passing cloud-config data such as: 'chpasswd: list: | user1:RANDOM' When instructing cloud-init to set a random password for a new user account, versions before 21.1.19 would write that password to the world-readable log file /var/log/cloud-init-output.log. This could allow a local user to log in as another user (CVE-2021-3429).

    References: https://advisories.mageia.org/MGASA-2021-0494.html, https://bugs.mageia.org/show_bug.cgi?id=28991, https://www.debian.org/lts/security/2021/dla-2601, https://github.com/canonical/cloud-init/releases/tag/21.2

    Affected packages

    Package

    Name: cloud-init

    Purl: pkg:rpm/mageia/cloud-init?arch=source&distro=mageia-8

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -20.2-2.1.mga8

    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
    MGASA-2021-0494 | CVE-DB