Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a speculative buffer overflow and side-channel analysis.
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://www.oracle.com/security-alerts/cpujul2020.html
https://security.netapp.com/advisory/ntap-20180823-0001/
https://cdrdv2.intel.com/v1/dl/getContent/685359
https://access.redhat.com/errata/RHSA-2020:0174
https://access.redhat.com/errata/RHSA-2019:1946
https://access.redhat.com/errata/RHSA-2018:2395