CVE-2021-26387
3.9
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
Summary
Insufficient access controls in ASP kernel may allow a privileged attacker with access to AMD signing keys and the BIOS menu or UEFI shell to map DRAM regions in protected areas, potentially leading to a loss of platform integrity.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| AMD | AMD EPYC™ 7001 Series Processors | various | affected |
| AMD | AMD EPYC™ 7002 Series Processors | various | affected |
| AMD | AMD EPYC™ 7003 Series Processors | various | affected |
| AMD | AMD EPYC™ 9004 Series Processors | various | affected |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | ComboAM4PI 1.0.0.9 | unaffected |
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | ComboAM4 V2 PI 1.2.0.8 | unaffected |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | ComboAM4 V2 PI 1.2.0.8 | unaffected |
| AMD | AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics | ComboAM4v2 PI 1.2.0.6 | unaffected |
| AMD | AMD Ryzen™ 7000 Series Desktop Processors | ComboAM5 1.0.8.0 | unaffected |
| AMD | AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics | ComboAM4PI 1.0.0.9 | unaffected |
| AMD | AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics | ComboAM4v2 PI 1.2.0.8 | unaffected |
| AMD | AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics | ComboAM4v2 PI 1.2.0.5 | unaffected |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors | CastlePeakPI-SP3r3 1.0.0.7 | unaffected |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors | ChagallWSPI-sWRX8 1.0.0.2 | unaffected |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors | CastlePeakWSPI-sWRX8 1.0.0.9 | unaffected |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000WX Processors | ChagallWSPI-sWRX8 1.0.0.2 | unaffected |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | PicassoPI-FP5 1.0.0.E | unaffected |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | PollockPI-FT5 1.0.0.4 | unaffected |
| AMD | AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics | PicassoPI-FP5 1.0.0.E | unaffected |
| AMD | AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics | RenoirPI-FP6 1.0.0.8 | unaffected |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.9 | unaffected |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.9 | unaffected |
| AMD | AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | RembrandtPI-FP7 1.0.0.9b | unaffected |
| AMD | AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics | RembrandtPI-FP7 1.0.0.9b | unaffected |
| AMD | AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.9 | unaffected |
| AMD | AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics | CezannePI-FP6 1.0.0.9 | unaffected |
| AMD | AMD EPYC™ Embedded 3000 Series Processors | various | affected |
| AMD | AMD EPYC™ Embedded 7002 Series Processors | various | affected |
| AMD | AMD EPYC™ Embedded 7003 Series Processors | various | affected |
| AMD | AMD EPYC™ Embedded 9003 Series Processors | various | affected |
| AMD | AMD Ryzen™ Embedded R1000 Series Processors | EmbeddedPI-FP5 1.2.0.A | unaffected |
| AMD | AMD Ryzen™ Embedded R2000 Series Processors | EmbeddedR2KPI-FP5 1.0.0.2 | unaffected |
| AMD | AMD Ryzen™ Embedded 5000 Series Processors | EmbAM4PI 1.0.0.2 | unaffected |
| AMD | AMD Ryzen™ Embedded V1000 Series Processors | EmbeddedPI-FP5 1.2.0.A | unaffected |
| AMD | AMD Ryzen™ Embedded V2000 Series Processors | EmbeddedPI-FP6 1.0.0.6 | unaffected |
| AMD | AMD Ryzen™ Embedded V3000 Series Processors | EmbeddedPI-FP7r2 1.0.0.9 | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
- https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html
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