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MitreCVE-2020-28368

HistoryNov 10, 2020 - 7:15 p.m.

CVE-2020-28368

2020-11-1019:15:11

CWE-862

mitre

web.nvd.nist.gov

135

xen

cve-2020-28368

security vulnerability

side-channel attack

platypus attack

access control

nvd

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

4.4

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

AI Score

4.6

Confidence

High

EPSS

0.001

Percentile

18.0%

JSON

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.

Affected configurations

Nvd

Node

xenxenRange≤4.14.0

Node

fedoraprojectfedoraMatch32

Node

debiandebian_linuxMatch10.0

VendorProductVersionCPE
xenxen*cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
fedoraprojectfedora32cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
xen	xen	*	cpe:2.3:o:xen:xen::::::::
fedoraproject	fedora	32	cpe:2.3:o:fedoraproject:fedora:32:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*