Xen 4.x, when using Intel VT-d for a bus mastering capable PCI device, does not properly check the source when accessing a bridge device's interrupt remapping table entries for MSI interrupts, which allows local guest domains to cause a denial of service (interrupt injection) via unspecified vectors.

References

• https://nvd.nist.gov/vuln/detail/CVE-2013-1952
• https://exchange.xforce.ibmcloud.com/vulnerabilities/83968
• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105533.html
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
• http://osvdb.org/92984
• http://secunia.com/advisories/53312
• http://secunia.com/advisories/55082
• http://security.gentoo.org/glsa/glsa-201309-24.xml
• http://www.debian.org/security/2013/dsa-2666
• http://www.openwall.com/lists/oss-security/2013/05/02/9
• http://www.securityfocus.com/bid/59617