GoogleOSV:CVE-2020-28368CVE-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.
References
www.openwall.com/lists/oss-security/2020/11/26/1
xenbits.xen.org/xsa/advisory-351.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5J66QUUHXH2RR4CNCKQRGVXVSOUFRPDA/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XV23EZIMNLJN4YXRRXLQV2ALW6ZEALXV/
platypusattack.com
www.debian.org/security/2020/dsa-4804
www.zdnet.com/article/new-platypus-attack-can-steal-data-from-intel-cpus/
xenbits.xen.org/xsa/advisory-351.html
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