CVE-2021-46755
No fix known EPSS <1%CVSS 7.5
Failure to unmap certain SysHub mappings in error paths of the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious bootloader to exhaust the SysHub resources resulting in a potential denial of service.
Products: AMD Ryzen™ 3000 Series Desktop Processors “Matisse” AM4, AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4, AMD Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4, 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT, AMD Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS, AMD Ryzen™ Threadripper™ PRO Processors “Chagall” WS, AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”, AMD Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”