CVE-2023-6377

    Dashboard / Vulnerabilities / CVE-2023-6377

    CVE-2023-6377

    Published: 13 Dec 2023Last Modified: 3 Nov 2026

    Summary: Xorg-x11-server: out-of-bounds memory reads/writes in xkb button actions

    Details: A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved.

    References: http://www.openwall.com/lists/oss-security/2023/12/13/1, https://access.redhat.com/downloads/content/package-browser/, https://lists.debian.org/debian-lts-announce/2023/12/msg00008.html, https://lists.debian.org/debian-lts-announce/2023/12/msg00013.html, https://lists.fedoraproject.org/archives/list/[email protected]/message/6R63Z6GIWM3YUNZRCGFODUXLW3GY2HD6/, https://lists.fedoraproject.org/archives/list/[email protected]/message/7PP47YXKM5ETLCYEF6473R3VFCJ6QT2S/, https://lists.fedoraproject.org/archives/list/[email protected]/message/IFHV5KCQ2SVOD4QMCPZ5HC6YL44L7YJD/, https://lists.fedoraproject.org/archives/list/[email protected]/message/LJDFWDB7EQVZA45XDP7L5WRSRWS6RVRR/, https://lists.x.org/archives/xorg-announce/2023-December/003435.html, https://access.redhat.com/errata/RHSA-2023:7886, https://access.redhat.com/errata/RHSA-2024:0006, https://access.redhat.com/errata/RHSA-2024:0009, https://access.redhat.com/errata/RHSA-2024:0010, https://access.redhat.com/errata/RHSA-2024:0014, https://access.redhat.com/errata/RHSA-2024:0015, https://access.redhat.com/errata/RHSA-2024:0016, https://access.redhat.com/errata/RHSA-2024:0017, https://access.redhat.com/errata/RHSA-2024:0018, https://access.redhat.com/errata/RHSA-2024:0020, https://access.redhat.com/errata/RHSA-2024:2169, https://access.redhat.com/errata/RHSA-2024:2170, https://access.redhat.com/errata/RHSA-2024:2995, https://access.redhat.com/errata/RHSA-2024:2996, https://access.redhat.com/errata/RHSA-2025:13998, https://access.redhat.com/security/cve/CVE-2023-6377, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6377.json, https://nvd.nist.gov/vuln/detail/CVE-2023-6377, https://security.gentoo.org/glsa/202401-30, https://security.netapp.com/advisory/ntap-20240125-0003/, https://www.debian.org/security/2023/dsa-5576, https://bugzilla.redhat.com/show_bug.cgi?id=2253291, https://gitlab.freedesktop.org/xorg/xserver/-/commit/0c1a93d319558fe3ab2d94f51d174b4f93810afd

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -0c1a93d319558fe3ab2d94f51d174b4f93810afd

    Affected versions

    xorg-server-21.0.99.1

    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
    CVE-2023-6377 | CVE-DB