UBUNTU-CVE-2021-4147

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    UBUNTU-CVE-2021-4147

    Published: 25 Mar 2022Last Modified: 20 Aug 2026
    Upstream:
    CVE-2021-4147

    Summary:

    Details: A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.

    References: https://ubuntu.com/security/CVE-2021-4147, https://listman.redhat.com/archives/libvir-list/2021-November/msg00908.html, https://ubuntu.com/security/notices/USN-5399-1, https://www.cve.org/CVERecord?id=CVE-2021-4147, https://ubuntu.com/security/notices/USN-8652-1

    Affected packages

    Package

    Name: libvirt

    Purl: pkg:deb/ubuntu/libvirt?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.1.1-0ubuntu8
    1.1.1-0ubuntu9
    1.1.4-0ubuntu2
    1.1.4-0ubuntu3
    1.1.4-0ubuntu4
    1.1.4-0ubuntu5

    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
    UBUNTU-CVE-2021-4147 | CVE-DB