CVE-2014-7188 Information

Description

The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation which allows local HVM guests to cause a denial of service (host crash) or read data from the hypervisor or other guests via unspecified vectors.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140199.html http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html http://secunia.com/advisories/61664 http://secunia.com/advisories/61858 http://secunia.com/advisories/61890 http://security.gentoo.org/glsa/glsa-201412-42.xml http://support.citrix.com/article/CTX200218 http://support.citrix.com/article/CTX201794 http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf http://www.debian.org/security/2014/dsa-3041 http://www.securityfocus.com/bid/70198 http://www.securitytracker.com/id/1030936 http://xenbits.xen.org/xsa/advisory-108.html https://exchange.xforce.ibmcloud.com/vulnerabilities/96785