CVE-2017-10920
CRITICAL10.0EPSS 1.1%Published: 7/5/2017Modified: 4/28/2026
Description
The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, 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 1.
Affected packages (2)
- Alpine/xenfrom 0, < 4.9.0-r0
- Debian/xenfrom 0, < 4.8.1-1+deb9u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL10.0 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |