Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00381
https://security.netapp.com/advisory/ntap-20201113-0006/
https://lists.debian.org/debian-lts-announce/2021/02/msg00007.html
https://cert-portal.siemens.com/productcert/pdf/ssa-678983.pdf