UBUNTU-CVE-2018-6307

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    UBUNTU-CVE-2018-6307

    Published: 19 Dec 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-6307
    Aliases:
    USN-3877-1

    Summary:

    Details: LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.

    References: https://ubuntu.com/security/CVE-2018-6307, https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/, https://ubuntu.com/security/notices/USN-3877-1, https://www.cve.org/CVERecord?id=CVE-2018-6307

    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