UBUNTU-CVE-2018-14598

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    UBUNTU-CVE-2018-14598

    Published: 24 Aug 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-14598

    Summary:

    Details: An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault).

    References: https://ubuntu.com/security/CVE-2018-14598, https://ubuntu.com/security/notices/USN-3758-2, https://ubuntu.com/security/notices/USN-3758-1, https://www.cve.org/CVERecord?id=CVE-2018-14598

    Affected packages

    Package

    Name: libx11

    Purl: pkg:deb/ubuntu/libx11@2:1.6.2-1ubuntu2.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:1.6.2-1ubuntu2.1

    Affected versions

    2:1.6.1-1ubuntu1
    2:1.6.1-1ubuntu2
    2:1.6.2-1ubuntu1
    2:1.6.2-1ubuntu2

    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