CVE-2014-9066

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    CVE-2014-9066

    Published: 9 Dec 2014Last Modified: 10 Apr 2026

    Summary:

    Details: Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065.

    References: http://xenbits.xen.org/xsa/advisory-114.html, https://security.gentoo.org/glsa/201504-04, http://xenbits.xen.org/xsa/advisory-114.html, http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html, http://www.openwall.com/lists/oss-security/2014/12/08/4, http://www.securityfocus.com/bid/71546

    Affected packages

    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
    CVE-2014-9066 | CVE-DB