Denial of Service Vulnerability in Xen 4.0, 4.1, and 4.2 via HVMOP_pagetable_dying Hypercall

Denial of Service Vulnerability in Xen 4.0, 4.1, and 4.2 via HVMOP_pagetable_dying Hypercall

CVE-2012-4538 · MEDIUM Severity

AV:L/AC:L/AU:N/C:N/I:N/A:C

The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors.

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