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    CVE-2023-6111

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.

    Published:Nov 14, 2023
    Last Modified:Mar 20, 2025
    EPS:Nov 14, 2023
    EPSS Score:0.0001
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630
    https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630
    https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630
    https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630
    https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/

    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