Denial of Service Vulnerability in Xen Hypervisor via SAHF Instruction

CVE-2011-2519 · MEDIUM Severity

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

Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.

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