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Unrated severityNVD Advisory· Published May 9, 2023· Updated Jan 28, 2025

CVE-2021-46755

CVE-2021-46755

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.

Affected products

10
  • AMD/Secure Processor (ASP) Boot Loaderllm-fuzzy
  • AMD/3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDTv5
    Range: various
  • AMD/AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4v5
    Range: various
  • AMD/Ryzen™ 3000 Series Desktop Processors “Matisse” AM4v5
    Range: various
  • AMD/Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”v5
    Range: various
  • AMD/Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4v5
    Range: various
  • AMD/Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”v5
    Range: various
  • AMD/Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”v5
    Range: various
  • AMD/Ryzen™ Threadripper™ PRO Processors “Castle Peak” WSv5
    Range: various
  • AMD/Ryzen™ Threadripper™ PRO Processors “Chagall” WSv5
    Range: various

Patches

Vulnerability mechanics

References

1

News mentions

0

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