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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current Description
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).
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 derference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
Metrics
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vector strings. CVSS information contributed by other sources is also
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La función do_mmu_update en arch/x86/mm.c en Xen 4.x hasta la versión 4.4.x no restringe adecuadamente las actualizaciones a las tablas de página sólo para PV, lo que permite a invitados PV remotos provocar una denegación de servicio (referencia a puntero NULL) aprovechando los servicios de emulación de hardware para invitados HVM que utilizan Hardware Assisted Paging (HAP).
Removed
Translation
La función do_mnu_uptadte en arch/x86/mm.c en Xen 4.x a través de 4.4.x no restringe adecuadamente las actualizaciones a las tablas de las páginas unicamente para PV, lo que permite a usuarios PV remotos provocar una denegación de servicio (referencia a puntero nulo) mediante el aprovechamiento de los servicios de emulación de hardware para los clientes que utilizan HVM Hardware Assisted Paging (HAP).
CVE Modified by MITRE9/28/2016 9:59:08 PM
Action
Type
Old Value
New Value
Changed
Description
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 derference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
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).
La función do_mnu_uptadte en arch/x86/mm.c en Xen 4.x a través de 4.4.x no restringe adecuadamente las actualizaciones a las tablas de las páginas unicamente para PV, lo que permite a usuarios PV remotos provocar una denegación de servicio (referencia a puntero nulo) mediante el aprovechamiento de los servicios de emulación de hardware para los clientes que utilizan HVM Hardware Assisted Paging (HAP).
Removed
Translation
La función do_mnu_uptadte en arch/x86/mm.c en Xen 4.x a través de 4.4.x no restringe adecuadamente los cambios de las tablas de las páginas sólo las tablas de página PV, permitiendo a usuarios PV remotos provocar una denegación de servicio (puntero NULL derference) aprovechandolos servicios de emulación de hardware para los clientes que utilizan HVM Hardware Assisted Paging (HAP).
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