Vulnerability Description
Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest.
CVSS Score
4.4
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Amd | Epyc 7003 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7003 | - |
| Amd | Epyc 72F3 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 72F3 | - |
| Amd | Epyc 7313 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7313 | - |
| Amd | Epyc 7313P Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7313P | - |
| Amd | Epyc 7343 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7343 | - |
| Amd | Epyc 7373X Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7373X | - |
| Amd | Epyc 73F3 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 73F3 | - |
| Amd | Epyc 7413 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7413 | - |
| Amd | Epyc 7443 Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7443 | - |
| Amd | Epyc 7443P Firmware | < milanpi-sp3_1.0.0.9 |
| Amd | Epyc 7443P | - |
Related Weaknesses (CWE)
References
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032Vendor Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032Vendor Advisory
FAQ
What is CVE-2021-26396?
CVE-2021-26396 is a vulnerability with a CVSS score of 4.4 (MEDIUM). Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest.
How severe is CVE-2021-26396?
CVE-2021-26396 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-26396?
Check the references section above for vendor advisories and patch information. Affected products include: Amd Epyc 7003 Firmware, Amd Epyc 7003, Amd Epyc 72F3 Firmware, Amd Epyc 72F3, Amd Epyc 7313 Firmware.