USN-3877-1

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    USN-3877-1

    Published: 31 Jan 2019Last Modified: 27 Apr 2026

    Summary: libvncserver vulnerabilities

    Details: It was discovered that LibVNCServer incorrectly handled certain operations. A remote attacker able to connect to applications using LibVNCServer could possibly use this issue to obtain sensitive information, cause a denial of service, or execute arbitrary code.

    References: https://ubuntu.com/security/notices/USN-3877-1, https://ubuntu.com/security/CVE-2018-6307, https://ubuntu.com/security/CVE-2018-15126, https://ubuntu.com/security/CVE-2018-15127, https://ubuntu.com/security/CVE-2018-20019, https://ubuntu.com/security/CVE-2018-20020, https://ubuntu.com/security/CVE-2018-20021, https://ubuntu.com/security/CVE-2018-20022, https://ubuntu.com/security/CVE-2018-20023, https://ubuntu.com/security/CVE-2018-20024, https://ubuntu.com/security/CVE-2018-20748, https://ubuntu.com/security/CVE-2018-20749, https://ubuntu.com/security/CVE-2018-20750

    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