UBUNTU-CVE-2015-2756

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    UBUNTU-CVE-2015-2756

    Published: 1 Apr 2015Last Modified: 22 Apr 2026
    Upstream:
    CVE-2015-2756
    Aliases:
    USN-2608-1

    Summary:

    Details: QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.

    References: https://ubuntu.com/security/CVE-2015-2756, http://xenbits.xen.org/xsa/advisory-126.html, https://ubuntu.com/security/notices/USN-2608-1, https://www.cve.org/CVERecord?id=CVE-2015-2756

    Affected packages

    Package

    Name: qemu

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-2ubuntu1.11?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.0+dfsg-2ubuntu1.11

    Affected versions

    1.5.0+dfsg-3ubuntu5
    1.5.0+dfsg-3ubuntu6

    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
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