Vulnerability in Amd 1st Gen Epyc™ Processors
CVE-2021-26356
A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and information disclosure.
EPSS: 0.003 (50.8th percentile) — read the EPSS interpretation.
Affected products
- Amd 1st Gen Epyc™ Processors — versions various
- Amd 2nd Gen Epyc™ Processors — versions various
- Amd 3rd Gen Epyc™ Processors — versions various
- Amd 3rd Gen Ryzen™ Threadripper™ Processors “Castle Peak” Hedt — versions various
- Amd Ryzen™ 5000 Series Desktop Processors “Vermeer” Am4 — versions various
- Amd Ryzen™ 3000 Series Desktop Processors “Matisse” Am4 — versions various
- Amd Ryzen™ Threadripper™ Pro Processors “Castle Peak” Ws — versions various
- Amd Ryzen™ Threadripper™ Pro Processors “Chagall” Ws — versions various
References
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 (vendor-advisory)
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 (vendor-advisory)