CVE-2014-8594

CVE-2014-8594 · MEDIUM Severity

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

The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).

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