Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf
https://medium.com/tenable-techblog/meltdown-of-critical-ics-vulnerabilities-8af3a1a13e6a
https://www.synology.com/security/advisory/Synology_SA_19_24
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html
https://www.freebsd.org/security/advisories/FreeBSD-SA-19:07.mds.asc
https://www.debian.org/security/2020/dsa-4602
https://usn.ubuntu.com/3977-3/
https://security.gentoo.org/glsa/202003-56
https://seclists.org/bugtraq/2020/Jan/21
https://seclists.org/bugtraq/2019/Nov/15
https://seclists.org/bugtraq/2019/Jun/36
https://seclists.org/bugtraq/2019/Jun/28
https://lists.debian.org/debian-lts-announce/2019/06/msg00018.html
https://kc.mcafee.com/corporate/index?page=content&id=SB10292
https://cert-portal.siemens.com/productcert/pdf/ssa-616472.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf
https://access.redhat.com/errata/RHSA-2019:2553
https://access.redhat.com/errata/RHSA-2019:1455
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190712-01-mds-en
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2019-003.txt
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00053.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00052.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00014.html