Xen 4.0 through 4.2, when running 32-bit x86 PV guests...

Vulnerability Description

Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service (infinite loop and hang or crash) via invalid arguments to GNTTABOP_get_status_frames, aka "Grant table hypercall infinite loop DoS vulnerability."

References

• http://www.openwall.com/lists/oss-security/2012/11/13/4
• http://secunia.com/advisories/55082
• http://www.osvdb.org/87305
• http://secunia.com/advisories/51413
• http://secunia.com/advisories/51200
• http://security.gentoo.org/glsa/glsa-201309-24.xml
• http://www.debian.org/security/2012/dsa-2582
• http://www.securitytracker.com/id?1027763
• http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html
• http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00018.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/80026
• http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html
• http://secunia.com/advisories/51468
• http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html
• http://lists.xen.org/archives/html/xen-announce/2012-11/msg00002.html
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
• http://secunia.com/advisories/51352
• http://secunia.com/advisories/51324
• https://security.gentoo.org/glsa/201604-03
• http://www.securityfocus.com/bid/56498
• http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html