UBUNTU-CVE-2018-20024

    Dashboard / Vulnerabilities / UBUNTU-CVE-2018-20024

    UBUNTU-CVE-2018-20024

    Published: 19 Dec 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-20024
    Aliases:
    USN-3877-1
    USN-4547-1
    USN-4547-2

    Summary:

    Details: LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.

    References: https://ubuntu.com/security/CVE-2018-20024, https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/, https://ubuntu.com/security/notices/USN-3877-1, https://ubuntu.com/security/notices/USN-4547-1, https://ubuntu.com/security/notices/USN-4547-2, https://ubuntu.com/security/notices/USN-4587-1, https://www.cve.org/CVERecord?id=CVE-2018-20024

    Affected packages

    Package

    Name: libvncserver

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-1ubuntu1.4?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.9.9+dfsg-1ubuntu1.4

    Affected versions

    0.9.9+dfsg-1
    0.9.9+dfsg-1ubuntu1
    0.9.9+dfsg-1ubuntu1.1
    0.9.9+dfsg-1ubuntu1.2
    0.9.9+dfsg-1ubuntu1.3

    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