CVE-2021-26320

2021-11-1618:05:10

CWE-295

AMD

www.cve.org

amd sev firmware

insufficient validation

denial of service

AI Score

5.7

Confidence

High

EPSS

Percentile

5.1%

JSON

Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP

CNA Affected

[
  {
    "product": "1st Gen AMD EPYC™",
    "vendor": "AMD",
    "versions": [
      {
        "lessThan": "NaplesPI-SP3_1.0.0.G",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "2nd Gen AMD EPYC™",
    "vendor": "AMD",
    "versions": [
      {
        "lessThan": "RomePI-SP3_1.0.0.C",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "3rd Gen AMD EPYC™",
    "vendor": "AMD",
    "versions": [
      {
        "lessThan": "MilanPI-SP3_1.0.0.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021