The remote SUSE host is missing one or more security updates.
Xen was updated to fix two security issues : CVE-2015-3209: Heap overflow in qemu pcnet controller allowing guest to host escape. (XSA-135, bsc#932770) CVE-2015-4164: DoS through iret hypercall handler. (XSA-136, bsc#932996) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.