CVE-2014-8866

    Dashboard / Vulnerabilities / CVE-2014-8866

    CVE-2014-8866

    Published: 1 Dec 2014Last Modified: 10 Apr 2026

    Summary:

    Details: The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.

    References: http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html, http://secunia.com/advisories/59937, http://secunia.com/advisories/62672, http://support.citrix.com/article/CTX201794, http://www.debian.org/security/2015/dsa-3140, http://www.securityfocus.com/bid/71332, http://xenbits.xen.org/xsa/advisory-111.html, https://security.gentoo.org/glsa/201504-04, http://xenbits.xen.org/xsa/advisory-111.html, http://secunia.com/advisories/59937, http://secunia.com/advisories/62672, http://support.citrix.com/article/CTX200288

    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