Medium severity · published Nov 10, 2020
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…
4.4
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
FE
Fedora · Fedoraproject
32 · source: NVD
XE
Xen · Xen
through 4.14.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-28368
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-28368
Mailing List
http://www.openwall.com/lists/oss-security/2020/11/26/1
Vendor Advisory
http://xenbits.xen.org/xsa/advisory-351.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5J66QUUHXH2RR4CNCKQRGVXVSOUFRPDA/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XV23EZIMNLJN4YXRRXLQV2ALW6ZEALXV/
Third Party Advisory
https://platypusattack.com
Mailing List
https://www.debian.org/security/2020/dsa-4804
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