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    CVE-2017-12193

    The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.

    Published:Nov 2, 2017
    Last Modified:Apr 20, 2025
    EPS:Nov 22, 2017
    EPSS Score:0.00041
    CVSS Score:5.5

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg
    Vendor
    Redhat
    Product
    Rhel Extras Rt

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea6789980fdaa610d7eb63602c746bf6ec70cd2b
    http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
    http://www.securityfocus.com/bid/101678
    https://access.redhat.com/errata/RHSA-2018:0151
    https://bugzilla.redhat.com/show_bug.cgi?id=1501215
    https://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b
    https://usn.ubuntu.com/3698-1/
    https://usn.ubuntu.com/3698-2/
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea6789980fdaa610d7eb63602c746bf6ec70cd2b
    http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11
    http://www.securityfocus.com/bid/101678
    https://access.redhat.com/errata/RHSA-2018:0151
    https://bugzilla.redhat.com/show_bug.cgi?id=1501215
    https://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b
    https://usn.ubuntu.com/3698-1/
    https://usn.ubuntu.com/3698-2/

    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