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    CVE-2020-12652

    The __mptctl_ioctl function in drivers/message/fusion/mptctl.c in the Linux kernel before 5.4.14 allows local users to hold an incorrect lock during the ioctl operation and trigger a race condition, i.e., a "double fetch" vulnerability, aka CID-28d76df18f0a. NOTE: the vendor states "The security impact of this bug is not as bad as it could have been because these operations are all privileged and root already has enormous destructive power."

    Published:Jan 15, 2020
    Last Modified:Nov 21, 2024
    EPS:May 5, 2020
    EPSS Score:0.00046
    CVSS Score:4.1

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
    https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.14
    https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=28d76df18f0ad5bcf5fa48510b225f0ed262a99b
    https://github.com/torvalds/linux/commit/28d76df18f0ad5bcf5fa48510b225f0ed262a99b
    https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
    https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
    https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
    https://security.netapp.com/advisory/ntap-20200608-0001/
    https://www.debian.org/security/2020/dsa-4698
    http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
    https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.14
    https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=28d76df18f0ad5bcf5fa48510b225f0ed262a99b
    https://github.com/torvalds/linux/commit/28d76df18f0ad5bcf5fa48510b225f0ed262a99b
    https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
    https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
    https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
    https://security.netapp.com/advisory/ntap-20200608-0001/
    https://www.debian.org/security/2020/dsa-4698

    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