UBUNTU-CVE-2018-7225

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    UBUNTU-CVE-2018-7225

    Published: 19 Feb 2018Last Modified: 20 May 2026
    Upstream:
    CVE-2018-7225
    Aliases:
    USN-3618-1
    USN-4547-1
    USN-4573-1

    Summary:

    Details: An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.

    References: https://ubuntu.com/security/CVE-2018-7225, http://www.openwall.com/lists/oss-security/2018/02/18/1, https://ubuntu.com/security/notices/USN-3618-1, https://ubuntu.com/security/notices/USN-4547-1, https://ubuntu.com/security/notices/USN-4573-1, https://ubuntu.com/security/notices/USN-4587-1, https://www.cve.org/CVERecord?id=CVE-2018-7225

    Affected packages

    Package

    Name: libvncserver

    Purl: pkg:deb/ubuntu/libvncserver?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.9.9+dfsg-1ubuntu1.3

    Affected versions

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

    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