github - ghsa-8rf7-vpj6-3967

ghsa-8rf7-vpj6-3967

Vulnerability from github

Published

2022-05-24 19:17

Modified

2022-05-24 19:17

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-26318"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-13T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-8rf7-vpj6-3967",
  "modified": "2022-05-24T19:17:23Z",
  "published": "2022-05-24T19:17:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26318"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2021-26318

Vulnerability from cvelistv5

Published

2021-10-13 18:29

Modified

2024-09-16 16:48

Severity ?

Summary

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.

References

▼	URL	Tags
	https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

AMD

All supported processors

Version: unspecified < undefined

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:19:20.137Z",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "All supported processors",
          "vendor": "AMD",
          "versions": [
            {
              "lessThan": "undefined",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-10-12T00:00:00",
      "descriptions": [
        {
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          "value": "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."
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-208",
              "description": "CWE-208 Information Exposure Through Timing Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-13T18:29:14",
        "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "shortName": "AMD"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017"
        }
      ],
      "source": {
        "advisory": "AMD-SB-1017",
        "discovery": "EXTERNAL"
      },
      "title": "Side-channels Related to the x86 PREFETCH Instruction",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@amd.com",
          "DATE_PUBLIC": "2021-10-12T19:30:00.000Z",
          "ID": "CVE-2021-26318",
          "STATE": "PUBLIC",
          "TITLE": "Side-channels Related to the x86 PREFETCH Instruction"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "All supported processors",
                      "version": {
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                          {
                            "version_affected": "\u003c",
                            "version_value": ""
                          }
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        "data_format": "MITRE",
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        "description": {
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        "problemtype": {
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                  "value": "CWE-208 Information Exposure Through Timing Discrepancy"
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              ]
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017",
              "refsource": "MISC",
              "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017"
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          ]
        },
        "source": {
          "advisory": "AMD-SB-1017",
          "discovery": "EXTERNAL"
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  },
  "cveMetadata": {
    "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
    "assignerShortName": "AMD",
    "cveId": "CVE-2021-26318",
    "datePublished": "2021-10-13T18:29:14.977353Z",
    "dateReserved": "2021-01-29T00:00:00",
    "dateUpdated": "2024-09-16T16:48:55.696Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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