CVE-2021-46792
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Time-of-check Time-of-use (TOCTOU) in the BIOS2PSP command may allow an attacker with a malicious BIOS to create a race condition causing the ASP bootloader to perform out-of-bounds SRAM reads upon an S3 resume event potentially leading to a denial of service.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| AMD | Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4 | various | affected |
| AMD | Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4 | Various | affected |
| AMD | Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP | various | affected |
| AMD | Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5 | various | affected |
| AMD | Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso” | various | affected |
| AMD | Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir” | various | affected |
| AMD | Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne” | various | affected |
| AMD | Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne” | various | affected |
Weaknesses
ADP Enrichment
CVE Program Container
Additional References
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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