DEBIAN-CVE-2020-28368

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2020-28368
Downstream
DSA-4804-1
Published: 10 Nov 2020, 19:15
Last modified:28 Apr 2026, 20:19

Vulnerability Summary

Overall Risk (default)
low
18/100
CVSS Score
4.4 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Nov 2020, 19:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:19
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected Systems

  • debian•xen

    < 4.14.0+80-gd101b417b7-1 | < 4.14.0+80-gd101b417b7-1 | < 4.14.0+80-gd101b417b7-1 | < 4.14.0+80-gd101b417b7-1

References (1)