Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- AMD / 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDTvarious – various
- AMD / AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4various – various
- AMD / Ryzen™ 3000 Series Desktop Processors “Matisse” AM4various – various
- AMD / Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”various – various
- AMD / Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne” AM4various – various
- AMD / Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”various – various
- AMD / Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”various – various
- AMD / Ryzen™ Threadripper™ PRO Processors “Castle Peak” WSvarious – various
- AMD / Ryzen™ Threadripper™ PRO Processors “Chagall” WSvarious – various