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    CVE-2022-23084

    The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted during the copyin. This time-of-check to time-of-use bug could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.

    Published:Feb 15, 2024
    Last Modified:Feb 13, 2025
    EPS:Feb 15, 2024
    EPSS Score:0.00037
    CVSS Score:7.8

    Affected Products

    Vendor
    Freebsd
    Product
    Freebsd

    Exploits

    No exploit reference

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    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