CVE-2018-14600

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    CVE-2018-14600

    Published: 24 Aug 2018Last Modified: 8 Jul 2026

    Summary:

    Details: An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.

    References: http://www.openwall.com/lists/oss-security/2018/08/21/6, http://www.securityfocus.com/bid/105177, http://www.securitytracker.com/id/1041543, https://access.redhat.com/errata/RHSA-2019:2079, https://lists.debian.org/debian-lts-announce/2018/08/msg00030.html, https://lists.x.org/archives/xorg-announce/2018-August/002916.html, https://security.gentoo.org/glsa/201811-01, https://usn.ubuntu.com/3758-1/, https://usn.ubuntu.com/3758-2/, https://bugzilla.suse.com/show_bug.cgi?id=1102068, https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11b46f3994bfc27fea

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    libX11-1.6.5
    libX11-1.6.4
    libX11-1.6.3
    libX11-1.6.2
    libX11-1.6.1
    libX11-1.6.0

    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
    CVE-2018-14600 | CVE-DB