CVE ID:	CVE-2012-3494
Description:	The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.
Test IDs:	1.3.6.1.4.1.25623.1.1.4.2012.1162.1   1.3.6.1.4.1.25623.1.1.4.2012.1133.1   1.3.6.1.4.1.25623.1.1.4.2012.1135.1   1.3.6.1.4.1.25623.1.1.4.2012.1129.1   1.3.6.1.4.1.25623.1.1.4.2012.1132.1
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2012-3494 1027479 http://www.securitytracker.com/id?1027479 50472 http://secunia.com/advisories/50472 50530 http://secunia.com/advisories/50530 51413 http://secunia.com/advisories/51413 55082 http://secunia.com/advisories/55082 55400 http://www.securityfocus.com/bid/55400 85197 http://osvdb.org/85197 DSA-2544 http://www.debian.org/security/2012/dsa-2544 GLSA-201309-24 http://security.gentoo.org/glsa/glsa-201309-24.xml GLSA-201604-03 https://security.gentoo.org/glsa/201604-03 SUSE-SU-2012:1129 http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00001.html SUSE-SU-2012:1132 http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html SUSE-SU-2012:1133 http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html SUSE-SU-2012:1135 http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00005.html SUSE-SU-2012:1162 http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00012.html [Xen-announce] 20120905 Xen Security Advisory 12 (CVE-2012-3494) - hypercall set_debugreg vulnerability http://lists.xen.org/archives/html/xen-announce/2012-09/msg00000.html [oss-security] 20120905 Xen Security Advisory 12 (CVE-2012-3494) - hypercall set_debugreg vulnerability http://www.openwall.com/lists/oss-security/2012/09/05/5 http://support.citrix.com/article/CTX134708 http://support.citrix.com/article/CTX134708 http://wiki.xen.org/wiki/Security_Announcements#XSA-12_hypercall_set_debugreg_vulnerability http://wiki.xen.org/wiki/Security_Announcements#XSA-12_hypercall_set_debugreg_vulnerability https://bugzilla.redhat.com/show_bug.cgi?id=851139 https://bugzilla.redhat.com/show_bug.cgi?id=851139 openSUSE-SU-2012:1172 http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html openSUSE-SU-2012:1174 http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html openSUSE-SU-2012:1572 http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html openSUSE-SU-2012:1573 http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html xen-setdebugreg-dos(78265) https://exchange.xforce.ibmcloud.com/vulnerabilities/78265