UBUNTU-CVE-2016-3713

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    UBUNTU-CVE-2016-3713

    Published: 16 May 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2016-3713
    Aliases:
    USN-2978-1
    USN-2978-2
    USN-2979-1

    Summary:

    Details: The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.

    References: https://ubuntu.com/security/CVE-2016-3713, http://www.openwall.com/lists/oss-security/2016/05/16/2, https://ubuntu.com/security/notices/USN-2979-2, https://ubuntu.com/security/notices/USN-2979-1, https://ubuntu.com/security/notices/USN-2978-2, https://ubuntu.com/security/notices/USN-2978-1, https://www.cve.org/CVERecord?id=CVE-2016-3713

    Affected packages

    Package

    Name: linux-lts-wily

    Purl: pkg:deb/ubuntu/[email protected]~14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.2.0-36.42~14.04.1

    Affected versions

    4.2.0-18.22~14.04.1
    4.2.0-19.23~14.04.1
    4.2.0-21.25~14.04.1
    4.2.0-22.27~14.04.1
    4.2.0-23.28~14.04.1
    4.2.0-25.30~14.04.1
    4.2.0-27.32~14.04.1
    4.2.0-30.35~14.04.1
    4.2.0-30.36~14.04.1
    4.2.0-34.39~14.04.1
    4.2.0-35.40~14.04.1
    4.2.0-36.41~14.04.1

    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