MGASA-2021-0553

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    MGASA-2021-0553

    Published: 10 Dec 2021Last Modified: 16 Apr 2026
    Upstream:
    CVE-2021-43784

    Summary: Updated opencontainers-runc packages fix security vulnerability

    Details: It was discovered that there was an overflow issue in runc, the runtime for the Open Container Project, often used with Docker. The Netlink 'bytemsg' length field could have allowed an attacker to override Netlink-based container configurations. This vulnerability required the attacker to have some control over the configuration of the container, but would have allowed the attacker to bypass the namespace restrictions of the container by simply adding their own Netlink payload which disables all namespaces. (CVE-2021-43784)

    References: https://advisories.mageia.org/MGASA-2021-0553.html, https://bugs.mageia.org/show_bug.cgi?id=29738, https://www.debian.org/lts/security/2021/dla-2841

    Affected packages

    Package

    Name: opencontainers-runc

    Purl: pkg:rpm/mageia/opencontainers-runc?arch=source&distro=mageia-8

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.0.3-1.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-2021-0553 | CVE-DB