CVE-2018-19967
6.5
MEDIUM
CVSS 3.1
EPSS 0.07%
Description
An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.
How to fix CVE-2018-19967
To remediate CVE-2018-19967, upgrade the affected package to a fixed version below.
- Alpine/xen—upgrade to 4.11.1-r0 or later
- —upgrade to 4.11.1-1 or later
Is CVE-2018-19967 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.11.1-r0
- from 0, < 4.11.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |