The vulnerability of the Xen hypervisor, a platform for server virtualization called XenServer, allows a attacker to cause a service failure, obtain confidential information, or execute arbitrary code.

The vulnerability of the Xen hypervisor and the XenServer platform for server virtualization exists due to insufficient validation of input data. Exploiting this vulnerability can allow a guest user of the 86-bit operating system running locally to obtain confidential information, execute arbitra...