CVE-2012-3432

    Dashboard / Vulnerabilities / CVE-2012-3432

    CVE-2012-3432

    Published: 3 Dec 2012Last Modified: 10 Apr 2026

    Summary:

    Details: The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x, when running an HVM guest, does not properly reset certain state information between emulation cycles, which allows local guest OS users to cause a denial of service (guest OS crash) via unspecified operations on MMIO regions.

    References: http://lists.xen.org/archives/html/xen-devel/2012-07/msg01649.html, http://secunia.com/advisories/55082, http://security.gentoo.org/glsa/glsa-201309-24.xml, http://www.debian.org/security/2012/dsa-2531, http://lists.xen.org/archives/html/xen-devel/2012-07/msg01649.html, http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html, http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html, http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html, http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html, http://www.securityfocus.com/bid/54691

    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