CVE-2017-2647

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    CVE-2017-2647

    Published: 31 Mar 2017Last Modified: 15 Mar 2026

    Summary:

    Details: The KEYS subsystem in the Linux kernel before 3.18 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c.

    References: https://usn.ubuntu.com/3849-2/, https://usn.ubuntu.com/3849-1/, http://www.securityfocus.com/bid/97258, https://access.redhat.com/errata/RHSA-2017:2437, https://access.redhat.com/errata/RHSA-2017:2444, https://access.redhat.com/errata/RHSA-2017:1842, https://access.redhat.com/errata/RHSA-2017:2077, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81, https://bugzilla.redhat.com/show_bug.cgi?id=1428353, https://github.com/torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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