VMID Exhaustion Vulnerability in Xen Hypervisor

CVE-2016-5242 · MEDIUM Severity

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

The p2m_teardown function in arch/arm/p2m.c in Xen 4.4.x through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (NULL pointer dereference and host OS crash) by creating concurrent domains and holding references to them, related to VMID exhaustion.

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