UBUNTU-CVE-2018-15858

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    UBUNTU-CVE-2018-15858

    Published: 25 Aug 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-15858

    Summary:

    Details: Unchecked NULL pointer usage when handling invalid aliases in CopyKeyAliasesToKeymap in xkbcomp/keycodes.c in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file.

    References: https://ubuntu.com/security/CVE-2018-15858, https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html, https://ubuntu.com/security/notices/USN-3786-1, https://ubuntu.com/security/notices/USN-3786-2, https://www.cve.org/CVERecord?id=CVE-2018-15858

    Affected packages

    Package

    Name: libxkbcommon

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.5.0-1ubuntu2.1

    Affected versions

    0.5.0-1ubuntu2

    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