CVE-2020-28368

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 v3.0 4.4 MEDIUM
CVSS v2.0 2.1 LOW

4.4^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://platypusattack.com	Third Party Advisory
https://www.zdnet.com/article/new-platypus-attack-can-steal-data-from-intel-cpus/	Third Party Advisory
https://xenbits.xen.org/xsa/advisory-351.html	Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XV23EZIMNLJN4YXRRXLQV2ALW6ZEALXV/	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/26/1	Mailing List Third Party Advisory
http://xenbits.xen.org/xsa/advisory-351.html	Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5J66QUUHXH2RR4CNCKQRGVXVSOUFRPDA/	Third Party Advisory
https://www.debian.org/security/2020/dsa-4804	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Information

Published : 2020-11-10 11:15

Updated : 2022-01-01 10:18

NVD link : CVE-2020-28368

Mitre link : CVE-2020-28368

JSON object : View

CWE

CWE-862

Missing Authorization

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Products Affected

debian

debian_linux

xen

xen

fedoraproject

fedora

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