UBUNTU-CVE-2017-12188

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    UBUNTU-CVE-2017-12188

    Published: 11 Oct 2017Last Modified: 4 Feb 2026
    Upstream:
    CVE-2017-12188
    Aliases:
    USN-3484-1
    USN-3484-2
    USN-3484-3

    Summary:

    Details: arch/x86/kvm/mmu.c in the Linux kernel through 4.13.5, when nested virtualisation is used, does not properly traverse guest pagetable entries to resolve a guest virtual address, which allows L1 guest OS users to execute arbitrary code on the host OS or cause a denial of service (incorrect index during page walking, and host OS crash), aka an "MMU potential stack buffer overrun."

    References: https://ubuntu.com/security/CVE-2017-12188, https://bugzilla.redhat.com/show_bug.cgi?id=1500380, https://patchwork.kernel.org/patch/9996579/, https://patchwork.kernel.org/patch/9996587/, https://ubuntu.com/security/notices/USN-3484-1, https://ubuntu.com/security/notices/USN-3484-2, https://ubuntu.com/security/notices/USN-3488-1, https://ubuntu.com/security/notices/USN-3487-1, https://ubuntu.com/security/notices/USN-3484-3, https://www.cve.org/CVERecord?id=CVE-2017-12188

    Affected packages

    Package

    Name: linux-azure

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.11.0-1015.15

    Affected versions

    4.11.0-1009.9
    4.11.0-1011.11
    4.11.0-1013.13
    4.11.0-1014.14

    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