CVE-2012-2934

    Dashboard / Vulnerabilities / CVE-2012-2934

    CVE-2012-2934

    Published: 3 Dec 2012Last Modified: 10 Apr 2026

    Summary:

    Details: Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.

    References: http://lists.xen.org/archives/html/xen-announce/2012-06/msg00002.html, http://secunia.com/advisories/51413, http://secunia.com/advisories/55082, http://security.gentoo.org/glsa/glsa-201309-24.xml, http://www.debian.org/security/2012/dsa-2501, http://lists.xen.org/archives/html/xen-announce/2012-06/msg00002.html, http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html, http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html, http://support.amd.com/us/Processor_TechDocs/25759.pdf, http://www.securityfocus.com/bid/53961

    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