CVE-2007-5907
Xen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service (crash).
Date published : 2007-11-09
http://www.securityfocus.com/bid/27219
http://lists.xensource.com/archives/html/xen-devel/2007-10/msg00932.html
