UBUNTU-CVE-2019-3840

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    UBUNTU-CVE-2019-3840

    Published: 27 Feb 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-3840
    Aliases:
    USN-3909-1

    Summary:

    Details: A NULL pointer dereference flaw was discovered in libvirt before version 5.0.0 in the way it gets interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service.

    References: https://ubuntu.com/security/CVE-2019-3840, https://www.redhat.com/archives/libvir-list/2019-January/msg00241.html, https://ubuntu.com/security/notices/USN-3909-1, https://www.cve.org/CVERecord?id=CVE-2019-3840

    Affected packages

    Package

    Name: libvirt

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.3.1-1ubuntu10.25

    Affected versions

    1.2.16-2ubuntu11
    1.2.16-2ubuntu12
    1.2.16-2ubuntu13
    1.2.16-2ubuntu14
    1.2.21-2ubuntu1
    1.2.21-2ubuntu3
    1.2.21-2ubuntu4
    1.2.21-2ubuntu5
    1.2.21-2ubuntu7
    1.2.21-2ubuntu8
    1.2.21-2ubuntu9
    1.2.21-2ubuntu10

    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