CVE-2019-12456

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    CVE-2019-12456

    Published: 30 May 2019Last Modified: 15 Mar 2026

    Summary:

    Details: An issue was discovered in the MPT3COMMAND case in _ctl_ioctl_main in drivers/scsi/mpt3sas/mpt3sas_ctl.c in the Linux kernel through 5.1.5. It allows local users to cause a denial of service or possibly have unspecified other impact by changing the value of ioc_number between two kernel reads of that value, aka a "double fetch" vulnerability. NOTE: a third party reports that this is unexploitable because the doubly fetched value is not used

    References: https://support.f5.com/csp/article/K84310302, https://support.f5.com/csp/article/K84310302?utm_source=f5support&amp%3Butm_medium=RSS, http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MDURACJVGIBIYBSGDZJTRDPX46H5WPZW/, http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html, http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBJHGQXA4PQ5EOGCOXEH3KFDNVZ2I4X7/, https://lkml.org/lkml/2019/5/29/1164, https://bugzilla.redhat.com/show_bug.cgi?id=1717182, https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=5.3/scsi-queue&id=86e5aca7fa2927060839f3e3b40c8bd65a7e8d1e

    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
    CVE-2019-12456 | CVE-DB