UBUNTU-CVE-2014-6052

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    UBUNTU-CVE-2014-6052

    Published: 24 Sept 2014Last Modified: 22 Apr 2026
    Upstream:
    CVE-2014-6052

    Summary:

    Details: The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message.

    References: https://ubuntu.com/security/CVE-2014-6052, http://seclists.org/oss-sec/2014/q3/639, http://www.kde.org/info/security/advisory-20140923-1.txt, http://www.ocert.org/advisories/ocert-2014-007.html, https://ubuntu.com/security/notices/USN-2365-1, https://www.cve.org/CVERecord?id=CVE-2014-6052, https://ubuntu.com/security/notices/USN-4587-1

    Affected packages

    Package

    Name: libvncserver

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

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

    Affected versions

    0.9.9+dfsg-1
    0.9.9+dfsg-1ubuntu1

    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