CVE-2012-4536

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    CVE-2012-4536

    Published: 21 Nov 2012Last Modified: 10 Apr 2026

    Summary:

    Details: The (1) domain_pirq_to_emuirq and (2) physdev_unmap_pirq functions in Xen 2.2 allows local guest OS administrators to cause a denial of service (Xen crash) via a crafted pirq value that triggers an out-of-bounds read.

    References: http://lists.xen.org/archives/html/xen-announce/2012-11/msg00003.html, http://secunia.com/advisories/51200, http://secunia.com/advisories/51324, http://secunia.com/advisories/51352, http://secunia.com/advisories/51413, http://secunia.com/advisories/55082, http://security.gentoo.org/glsa/glsa-201309-24.xml, https://security.gentoo.org/glsa/201604-03, http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html, http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html, http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html, http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html, http://osvdb.org/87297, http://www.openwall.com/lists/oss-security/2012/11/13/2, http://www.securityfocus.com/bid/56498, http://www.securitytracker.com/id?1027760, https://exchange.xforce.ibmcloud.com/vulnerabilities/80023

    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-2012-4536 | CVE-DB