Home/CVE/Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the gue
CVE

CVE-2020-28368

Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the gue

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.

MEDIUM · CVSS 4.4 EPSS 0.00067
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-862Missing Authorization
▤

Affected Products & Versions

3
xen<= 4.14.0
fedoraproject fedoraall versions
debian linuxall versions
▣

Scoring & Timeline

4.4
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Nov 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

21
suse-csafopenSUSE-SU-2024:11520-1
suse-csafSUSE-SU-2021:1460-1
suse-csafSUSE-SU-2021:1023-1
suse-csafSUSE-SU-2020:3742-1
suse-csafSUSE-SU-2020:14557-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2020/11/26/1Mailing ListThird Party Advisory
http://xenbits.xen.org/xsa/advisory-351.htmlVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5J66QUUHXH2RR4CNCKQRGVXVSOUFRPDA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XV23EZIMNLJN4YXRRXLQV2ALW6ZEALXV/
https://platypusattack.comThird Party Advisory
https://www.debian.org/security/2020/dsa-4804Mailing ListThird Party Advisory
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