Описание
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).
| Релиз | Статус | Примечание |
|---|---|---|
| devel | released | 4.4.1-3ubuntu2 |
| esm-infra-legacy/trusty | DNE | trusty/esm was DNE [trusty was released [4.4.1-0ubuntu0.14.04.2]] |
| lucid | DNE | |
| precise | released | 4.1.6.1-0ubuntu0.12.04.4 |
| trusty | released | 4.4.1-0ubuntu0.14.04.2 |
| trusty/esm | DNE | trusty was released [4.4.1-0ubuntu0.14.04.2] |
| upstream | needed | |
| utopic | released | 4.4.1-0ubuntu0.14.10.2 |
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| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| lucid | not-affected | |
| precise | DNE | |
| trusty | DNE | |
| trusty/esm | DNE | |
| upstream | ignored | end of life |
| utopic | DNE |
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5.4 Medium
CVSS2
Связанные уязвимости
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 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 d ...
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).
5.4 Medium
CVSS2