UBUNTU-CVE-2016-7466

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    UBUNTU-CVE-2016-7466

    Published: 21 Sept 2016Last Modified: 4 Feb 2026
    Upstream:
    CVE-2016-7466
    Aliases:
    USN-3125-1

    Summary:

    Details: Memory leak in the usb_xhci_exit function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator), when the xhci uses msix, allows local guest OS administrators to cause a denial of service (memory consumption and possibly QEMU process crash) by repeatedly unplugging a USB device.

    References: https://ubuntu.com/security/CVE-2016-7466, https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg02773.html, http://www.openwall.com/lists/oss-security/2016/09/19/8, https://ubuntu.com/security/notices/USN-3125-1, https://www.cve.org/CVERecord?id=CVE-2016-7466

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.6?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:2.5+dfsg-5ubuntu10.6

    Affected versions

    1:2.3+dfsg-5ubuntu9

    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