CVE-2018-7225

    Dashboard / Vulnerabilities / CVE-2018-7225

    CVE-2018-7225

    Published: 19 Feb 2018Last Modified: 7 Aug 2026

    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://lists.debian.org/debian-lts-announce/2019/10/msg00042.html, https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html, https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html, https://usn.ubuntu.com/4547-1/, https://usn.ubuntu.com/4573-1/, https://usn.ubuntu.com/4587-1/, http://www.securityfocus.com/bid/103107, https://access.redhat.com/errata/RHSA-2018:1055, https://github.com/LibVNC/libvncserver/issues/218, https://lists.debian.org/debian-lts-announce/2018/03/msg00035.html, https://security.gentoo.org/glsa/201908-05, https://usn.ubuntu.com/3618-1/, https://www.debian.org/security/2018/dsa-4221, http://www.openwall.com/lists/oss-security/2018/02/18/1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    LibVNCServer-0.9.11
    LibVNCServer-0.9.10
    LibVNCServer-0.9.9
    LibVNCServer-0.9.8

    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