CVE-2017-10921
Published: 5 July 2017
The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 2.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
xen Launchpad, Ubuntu, Debian |
trusty |
Released
(4.4.2-0ubuntu0.14.04.12)
|
| upstream |
Needs triage
|
|
| xenial |
Released
(4.6.5-0ubuntu1.2)
|
|
| yakkety |
Released
(4.7.2-0ubuntu1.3)
|
|
| zesty |
Released
(4.8.0-1ubuntu2.2)
|
|
| Binaries built from this source package are in Universe and so are supported by the community. | ||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 10.0 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |