CVE-2017-8904
8.8
HIGH
CVSS 3.1
EPSS 0.09%
Description
Xen through 4.8.x mishandles the "contains segment descriptors" property during GNTTABOP_transfer (aka guest transfer) operations, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-214.
How to fix CVE-2017-8904
To remediate CVE-2017-8904, upgrade the affected package to a fixed version below.
- Alpine/xen—upgrade to 4.8.1-r2 or later
- Debian/xen—upgrade to 4.8.1-1+deb9u1 or later
Is CVE-2017-8904 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.8.1-r2
- from 0, < 4.8.1-1+deb9u1
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 |