CVE-2012-4538 Information

Description

The HVMOP_pagetable_dying hypercall in Xen 4.0 4.1 and 4.2 does not properly check the pagetable state when running on shadow pagetables which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors.

Reference

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://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.xen.org/archives/html/xen-announce/2012-11/msg00004.html http://osvdb.org/87306 http://secunia.com/advisories/51200 http://secunia.com/advisories/51324 http://secunia.com/advisories/51352 http://secunia.com/advisories/51413 http://secunia.com/advisories/51468 http://secunia.com/advisories/55082 http://security.gentoo.org/glsa/glsa-201309-24.xml http://www.debian.org/security/2012/dsa-2582 http://www.openwall.com/lists/oss-security/2012/11/13/3 http://www.securityfocus.com/bid/56498 http://www.securitytracker.com/id?1027762 https://exchange.xforce.ibmcloud.com/vulnerabilities/80025 https://security.gentoo.org/glsa/201604-03