CVE-2020-28368
4.4
MEDIUM
CVSS 3.1
EPSS 0.07%
Description
Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the guest) via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for each such interface in Xen.
How to fix CVE-2020-28368
To remediate CVE-2020-28368, upgrade the affected package to a fixed version below.
- —upgrade to 4.12.4-r0 or later
- —upgrade to 4.14.0+80-gd101b417b7-1 or later
Is CVE-2020-28368 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.12.4-r0
- from 0, < 4.14.0+80-gd101b417b7-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |