CVE-2021-26318 Side-channels Related to the x86 PREFETCH Instruction

2021-10-1318:29:14

CWE-208

AMD

www.cve.org

cve-2021-26318 side-channels timing power-based

AI Score

Confidence

High

EPSS

Percentile

12.6%

JSON

A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information.

CNA Affected

[
  {
    "product": "All supported processors",
    "vendor": "AMD",
    "versions": [
      {
        "lessThan": "undefined",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017