Systems with microprocessors utilizing speculative execution and that perform speculative reads of system registers may allow unauthorized disclosure of system parameters to an attacker with local user access via a side-channel analysis, aka Rogue System Register Read (RSRE), Variant 3a.
https://www.us-cert.gov/ncas/alerts/TA18-141A
https://www.synology.com/support/security/Synology_SA_18_23
https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-18-0006
https://www.kb.cert.org/vuls/id/180049
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00115.html
https://www.debian.org/security/2018/dsa-4273
https://usn.ubuntu.com/3756-1/
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03850en_us
https://security.netapp.com/advisory/ntap-20180521-0001/
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0005
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV180013
https://lists.debian.org/debian-lts-announce/2018/09/msg00017.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00038.html
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability
https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-268644.pdf
http://www.securitytracker.com/id/1042004
http://www.securitytracker.com/id/1040949
http://www.securityfocus.com/bid/104228
http://www.fujitsu.com/global/support/products/software/security/products-f/cve-2018-3639e.html