The vulnerabilities do not really concern gamers as the flaws as they concern virtual machines. Three of the flaws result in a crash of the graphics driver and the fourth flaw in AMD's shader compiler makes it possible to exploit the host machine of a VMWare virtual machine.
Via: TPUThe first vulnerability, CVE-2019-5146, is briefly described as "AMD ATI Radeon ATIDXX64.DLL MAD shader functionality denial-of-service vulnerability." CVE-2019-5147 describes "AMD ATI Radeon ATIDXX64.DLL MOVC shader functionality denial-of-service vulnerability." CVE-2019-5124 points to "AMD ATI Radeon ATIDXX64.DLL shader functionality constant buffer denial-of-service vulnerability." CVE-2019-5183 talks about "AMD ATI Radeon ATIDXX64.DLL shader functionality VTABLE remote code execution vulnerability."