Out-of-bounds Read in Amd 2nd Gen Epyc
CVE-2021-46768
Insufficient input validation in SEV firmware may allow an attacker to perform out-of-bounds memory reads within the ASP boot loader, potentially leading to a denial of service.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (6.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Amd 2nd Gen Epyc — versions various
- Amd 3rd Gen Epyc — versions various
- Amd Milanpi
- Amd Milanpi_firmware
- Amd Romepi
- Amd Romepi_firmware
Weakness classification (CWE)
References
- psirt@amd.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-46768?
- CVE-2021-46768 is a medium-severity vulnerability in Amd 2nd Gen Epyc, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2023-01-11.
- How severe is CVE-2021-46768?
- Medium severity. CVSS v3 base score is 5.5 out of 10.