CVE-2018-19965
5.6
MEDIUM
CVSS 3.1
EPSS 0.18%
Description
An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.
How to fix CVE-2018-19965
To remediate CVE-2018-19965, 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-2018-19965 being exploited?
Low — EPSS is 0.2%, 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 | MEDIUM5.6 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |