Vulnerability Description
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Amd | Epyc 7203 Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 7203 | - |
| Amd | Epyc 7203P Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 7203P | - |
| Amd | Epyc 72F3 Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 72F3 | - |
| Amd | Epyc 7303 Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 7303 | - |
| Amd | Epyc 7303P Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 7303P | - |
| Amd | Epyc 7313 Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 7313 | - |
| Amd | Epyc 7313P Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 7313P | - |
| Amd | Epyc 7343 Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 7343 | - |
| Amd | Epyc 73F3 Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 73F3 | - |
| Amd | Epyc 7373X Firmware | < milanpi_1.0.0.d |
| Amd | Epyc 7373X | - |
Related Weaknesses (CWE)
References
FAQ
What is CVE-2023-31355?
CVE-2023-31355 is a vulnerability with a CVSS score of 6.0 (MEDIUM). Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
How severe is CVE-2023-31355?
CVE-2023-31355 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-31355?
Check the references section above for vendor advisories and patch information. Affected products include: Amd Epyc 7203 Firmware, Amd Epyc 7203, Amd Epyc 7203P Firmware, Amd Epyc 7203P, Amd Epyc 72F3 Firmware.