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    CVE-2023-42756

    A flaw was found in the Netfilter subsystem of the Linux kernel. A race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP can lead to a kernel panic due to the invocation of `__ip_set_put` on a wrong `set`. This issue may allow a local user to crash the system.

    Published:Sep 27, 2023
    Last Modified:Nov 6, 2025
    EPS:Sep 28, 2023
    EPSS Score:0.00007
    CVSS Score:4.4

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://bugzilla.redhat.com/show_bug.cgi?id=2239848https://seclists.org/oss-sec/2023/q3/242https://bugzilla.redhat.com/show_bug.cgi?id=2239848https://seclists.org/oss-sec/2023/q3/242

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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