UBUNTU-CVE-2018-15853

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    UBUNTU-CVE-2018-15853

    Published: 25 Aug 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-15853

    Summary:

    Details: Endless recursion exists in xkbcomp/expr.c in xkbcommon and libxkbcommon before 0.8.1, which could be used by local attackers to crash xkbcommon users by supplying a crafted keymap file that triggers boolean negation.

    References: https://ubuntu.com/security/CVE-2018-15853, 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-2018-15853

    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