CVE-2021-46755

7.5HIGH

Key Information

Vendor
Amd
Status
Ryzen™ 3000 Series Desktop Processors “matisse” Am4
Amd Ryzen™ 5000 Series Desktop Processors “vermeer” Am4
Ryzen™ 5000 Series Desktop Processor With Radeon™ Graphics “cezanne” Am4
3rd Gen Amd Ryzen™ Threadripper™ Processors “castle Peak” Hedt
Vendor
CVE Published:
9 May 2023

Summary

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.

Affected Version(s)

Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 = various

AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 = various

Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4 = various

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database
.