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

CVE-2021-46756

CVE-2021-46756

Description

Insufficient validation of inputs in SVC_MAP_USER_STACK in the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious Uapp or ABL to send malformed or invalid syscall to the bootloader resulting in a potential denial of service and loss of integrity.

Affected products

19
  • AMD/Secure Processorllm-fuzzy
  • AMD/1st Gen AMD EPYC™ Processorsv5
    Range: various
  • AMD/2nd Gen AMD EPYC™ Processorsv5
    Range: various
  • AMD/2nd Gen AMD Ryzen™ Threadripper™ Processors “Colfax”v5
    Range: various
  • AMD/3rd Gen AMD EPYC™ Processorsv5
    Range: various
  • AMD/3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDTv5
    Range: various
  • AMD/AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4v5
    Range: various
  • AMD/Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULPv5
    Range: various
  • AMD/Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”v5
    Range: various
  • AMD/Ryzen™ 2000 Series Desktop Processors “Pinnacle Ridge”v5
    Range: various
  • AMD/Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4v5
    Range: various
  • AMD/Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5v5
    Range: various
  • AMD/Ryzen™ 3000 Series Desktop Processors “Matisse” AM4v5
    Range: various
  • AMD/Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”v5
    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

Patches

Vulnerability mechanics

References

2

News mentions

0

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