CVE-2024-21977
3.2
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N
Summary
Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| AMD | AMD EPYC™ 7003 Series Processors | MilanPI 1.0.0.D | unaffected |
| AMD | AMD EPYC™ 9004 Series Processors | GenoaPI 1.0.0.C | unaffected |
| AMD | AMD EPYC™ 8004 Series Processors | GenoaPI 1.0.0.C | unaffected |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors | ChagallWSPI-sWRX8 1.0.0.8 | unaffected |
| AMD | AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics | CezannePI-FP6_1.0.1.1 | unaffected |
| AMD | AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics | RembrandtPI-FP7/FP7r2_1.0.0.B | unaffected |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | ComboAM4v2 1.2.0.Cb | unaffected |
| AMD | AMD Ryzen™ 7000 Series Desktop Processors | ComboAM5 1.2.0.1 | unaffected |
| AMD | AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics | PhoenixPI-FP8-FP7_1.1.0.3 | unaffected |
| AMD | AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | RembrandtPI-FP7/FP7r2_1.0.0.B | unaffected |
| AMD | AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics | DragonRangeFL1 1.0.0.3e | unaffected |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors | ChagallWSPI-sWRX8 1.0.0.8 | unaffected |
| AMD | AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics | CezannePI-FP6_1.0.1.1 | unaffected |
| AMD | AMD Ryzen™ 8000 Series Desktop Processors | ComboAM5 1.2.0.1 | unaffected |
| AMD | AMD EPYC™ Embedded 7003 Series Processors | EmbMilanPI-SP3 1.0.0.9 | unaffected |
| AMD | AMD EPYC™ Embedded 9004 Series Processors | EmbGenoaPI-SP5 1.0.0.9 | unaffected |
| AMD | AMD Ryzen™ Embedded 8000 Series Processors | EmbeddedPhoenixPI-FP7r2_1.2.0.0 | unaffected |
| AMD | AMD Ryzen™ Embedded 7000 Series Processors | EmbeddedAM5PI 1.0.0.3 | unaffected |
| AMD | AMD Ryzen™ Embedded 5000 Series Processors | EmbAM4PI 1.0.0.7 | unaffected |
| AMD | AMD Ryzen™ Embedded V3000 Series Processors | Embedded-PI_FP7r2 100A | unaffected |
Weaknesses
- CWE-459: CWE-459 Incomplete Cleanup
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-4012.html
- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html
- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html
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