UBUNTU-CVE-2018-15864

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    UBUNTU-CVE-2018-15864

    Published: 25 Aug 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-15864

    Summary:

    Details: Unchecked NULL pointer usage in resolve_keysym in xkbcomp/parser.y in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because a map access attempt can occur for a map that was never created.

    References: https://ubuntu.com/security/CVE-2018-15864, https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html, https://ubuntu.com/security/notices/USN-3786-1, https://ubuntu.com/security/notices/USN-3786-2, https://www.cve.org/CVERecord?id=CVE-2018-15864

    Affected packages

    Package

    Name: libxkbcommon

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.4.1-0ubuntu1.1

    Affected versions

    0.3.1-1
    0.3.1-2

    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