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CVE-2020-12912

Status: ModifiedMedium (5.5)—

A potential vulnerability in the AMD extension to Linux "hwmon" service may allow an attacker to use the Linux-based Running Average Power Limit (RAPL) interface to show various side channel attacks. In line with industry partners, AMD has updated the RAPL interface to require privileged access.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

AMD — Energy Driver FOR Linux

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-12912",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@amd.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "AMD extension to Linux \"hwmon\" for Zen1 platforms",
          "versions": [
            {
              "status": "affected",
              "version": "Each Linux distro determines its own version."
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-11-12T20:15:15.127",
  "references": [
    {
      "url": "https://www.amd.com/en/corporate/product-security",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@amd.com"
    },
    {
      "url": "https://www.amd.com/en/corporate/product-security",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@amd.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-749"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A potential vulnerability in the AMD extension to Linux \"hwmon\" service may allow an attacker to use the Linux-based Running Average Power Limit (RAPL) interface to show various side channel attacks. In line with industry partners, AMD has updated the RAPL interface to require privileged access."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad potencial en la extensión de AMD para el servicio \"hwmon\" de Linux puede permitir a un atacante utilizar la interfaz RAPL (Running Average Power Limit) basada en Linux para mostrar varios ataques de canal lateral. De acuerdo con los socios de la industria, AMD ha actualizado la interfaz RAPL para requerir acceso privilegiado"
    }
  ],
  "lastModified": "2026-06-17T02:52:31.640",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:amd:energy_driver_for_linux:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "06484815-E80E-42E3-9350-BB04B56AC658"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@amd.com"
}