Описание
A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | released | 4.9.0-0ubuntu3 |
| esm-infra-legacy/trusty | DNE | trusty/esm was DNE [trusty was released [4.4.2-0ubuntu0.14.04.14]] |
| esm-infra/xenial | released | 4.6.5-0ubuntu1.4 |
| precise/esm | DNE | |
| trusty | released | 4.4.2-0ubuntu0.14.04.14 |
| trusty/esm | DNE | trusty was released [4.4.2-0ubuntu0.14.04.14] |
| upstream | needs-triage | |
| vivid/ubuntu-core | DNE | |
| xenial | released | 4.6.5-0ubuntu1.4 |
| zesty | released | 4.8.0-1ubuntu2.4 |
Показывать по
7.2 High
CVSS2
8.8 High
CVSS3
Связанные уязвимости
A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.
A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.
A grant unmapping issue was discovered in Xen through 4.9.x. When remo ...
A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.
Уязвимость гипервизора Xen, связанная с ошибками сопоставления прав доступа, позволяющая нарушителю повысить свои привилегии или вызвать отказ в обслуживании
7.2 High
CVSS2
8.8 High
CVSS3