CVE-2018-15862

    Dashboard / Vulnerabilities / CVE-2018-15862

    CVE-2018-15862

    Published: 25 Aug 2018Last Modified: 5 Sept 2026

    Summary:

    Details: Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c 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 with invalid virtual modifiers.

    References: https://access.redhat.com/errata/RHSA-2019:2079, https://security.gentoo.org/glsa/201810-05, https://usn.ubuntu.com/3786-1/, https://usn.ubuntu.com/3786-2/, https://github.com/xkbcommon/libxkbcommon/commit/4e2ee9c3f6050d773f8bbe05bc0edb17f1ff8371, https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    xkbcommon-0.8.1
    xkbcommon-0.8.0

    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