CVE-2021-26356
7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| AMD | Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 | various | affected |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 | various | affected |
| AMD | 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT | various | affected |
| AMD | Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS | various | affected |
| AMD | Ryzen™ Threadripper™ PRO Processors “Chagall” WS | various | affected |
| AMD | 1st Gen AMD EPYC™ Processors | various | affected |
| AMD | 2nd Gen AMD EPYC™ Processors | various | affected |
| AMD | 3rd Gen AMD EPYC™ Processors | various | affected |
Weaknesses
ADP Enrichment
CVE Program Container
Additional References
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001
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