4.2.1

DATE	CVE	VULNERABILITY TITLE	RISK
2013-05-13	CVE-2013-1918	Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in XEN Certain page table manipulation operations in Xen 4.1.x, 4.2.x, and earlier are not preemptible, which allows local PV kernels to cause a denial of service via vectors related to "deep page table traversal." local xen CWE-119	4.7
2013-05-13	CVE-2013-1917	Improper Input Validation vulnerability in XEN Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction. local xen CWE-20	1.9
2013-04-12	CVE-2013-1920	Permissions, Privileges, and Access Controls vulnerability in XEN Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running "under memory pressure" and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors. local xen CWE-264	4.4
2013-02-14	CVE-2013-0153	Local Denial of Service vulnerability in Xen AMD IOMMU The AMD IOMMU support in Xen 4.2.x, 4.1.x, 3.3, and other versions, when using AMD-Vi for PCI passthrough, uses the same interrupt remapping table for the host and all guests, which allows guests to cause a denial of service by injecting an interrupt into other guests. local xen	4.7
2013-02-14	CVE-2012-5634	Configuration vulnerability in XEN Xen 4.2.x, 4.1.x, and 4.0, when using Intel VT-d for PCI passthrough, does not properly configure VT-d when supporting a device that is behind a legacy PCI Bridge, which allows local guests to cause a denial of service to other guests by injecting an interrupt. low complexity xen CWE-16	6.1