CVE-2017-17564
7.8
HIGH
CVSS 3.1
EPSS 0.06%
Description
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging incorrect error handling for reference counting in shadow mode.
How to fix CVE-2017-17564
To remediate CVE-2017-17564, upgrade the affected package to a fixed version below.
- Alpine/xen—upgrade to 4.6.6-r3 or later
- Debian/xen—upgrade to 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 or later
Is CVE-2017-17564 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.6.6-r3
- from 0, < 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |