CVE-2011-1780 Information

Description

The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread.

Reference

http://rhn.redhat.com/errata/RHSA-2011-1065.html http://rhn.redhat.com/errata/RHSA-2011-1163.html http://www.openwall.com/lists/oss-security/2011/07/07/3 https://bugzilla.redhat.com/show_bug.cgi?id=702657