CVE-2016-6258
8.8
HIGH
CVSS 3.1
EPSS 0.11%
Description
The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
How to fix CVE-2016-6258
To remediate CVE-2016-6258, upgrade the affected package to a fixed version below.
- Alpine/xen—upgrade to 4.7.0-r0 or later
- Debian/xen—upgrade to 4.8.0~rc3-1 or later
Is CVE-2016-6258 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.7.0-r0
- from 0, < 4.8.0~rc3-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |