CVE-2018-12904

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    CVE-2018-12904

    Published: 27 Jun 2018Last Modified: 16 Apr 2026

    Summary:

    Details: In arch/x86/kvm/vmx.c in the Linux kernel before 4.17.2, when nested virtualization is used, local attackers could cause L1 KVM guests to VMEXIT, potentially allowing privilege escalations and denial of service attacks due to lack of checking of CPL.

    References: https://usn.ubuntu.com/3752-3/, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.2, https://usn.ubuntu.com/3752-1/, https://usn.ubuntu.com/3752-2/, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=727ba748e110b4de50d142edca9d6a9b7e6111d8, https://github.com/torvalds/linux/commit/727ba748e110b4de50d142edca9d6a9b7e6111d8, https://www.exploit-db.com/exploits/44944/, https://bugs.chromium.org/p/project-zero/issues/detail?id=1589

    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