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    CVE-2022-2320

    A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.

    Published:Jul 12, 2022
    Last Modified:Aug 29, 2025
    EPS:Sep 1, 2022
    EPSS Score:0.0003
    CVSS Score:7.8

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    X.org
    Product
    X Server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://github.com/freedesktop/xorg-xserver/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc
    https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938
    https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939
    https://lists.freedesktop.org/archives/xorg-announce/2022-July/003192.html
    https://security.gentoo.org/glsa/202210-30
    https://security.netapp.com/advisory/ntap-20221104-0003/
    https://www.zerodayinitiative.com/advisories/ZDI-22-963/
    https://github.com/freedesktop/xorg-xserver/commit/dd8caf39e9e15d8f302e54045dd08d8ebf1025dc
    https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/938
    https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/939
    https://lists.freedesktop.org/archives/xorg-announce/2022-July/003192.html
    https://security.gentoo.org/glsa/202210-30
    https://security.netapp.com/advisory/ntap-20221104-0003/
    https://www.zerodayinitiative.com/advisories/ZDI-22-963/

    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