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).
Max CVSS
5.4
EPSS Score
0.67%
Published
2014-11-19
Updated
2018-10-30
1 vulnerabilities found
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