UBUNTU-CVE-2015-8551

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    UBUNTU-CVE-2015-8551

    Published: 17 Dec 2015Last Modified: 26 Aug 2026
    Upstream:
    CVE-2015-8551
    Aliases:
    USN-2846-1
    USN-2847-1
    USN-2848-1

    Summary:

    Details: The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service (NULL pointer dereference and host OS crash) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and a crafted sequence of XEN_PCI_OP_* operations, aka "Linux pciback missing sanity checks."

    References: https://ubuntu.com/security/CVE-2015-8551, http://xenbits.xen.org/xsa/advisory-157.html, https://ubuntu.com/security/notices/USN-2846-1, https://ubuntu.com/security/notices/USN-2847-1, https://ubuntu.com/security/notices/USN-2848-1, https://ubuntu.com/security/notices/USN-2849-1, https://ubuntu.com/security/notices/USN-2850-1, https://ubuntu.com/security/notices/USN-2851-1, https://ubuntu.com/security/notices/USN-2853-1, https://ubuntu.com/security/notices/USN-2854-1, https://www.cve.org/CVERecord?id=CVE-2015-8551

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-74.118

    Affected versions

    3.11.0-12.19

    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