github - ghsa-745h-3gvr-9mc6

ghsa-745h-3gvr-9mc6

Vulnerability from github

Published

2022-08-11 00:00

Modified

2022-08-20 00:00

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-46778"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-10T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed \u201cZen 1\u201d, \u201cZen 2\u201d and \u201cZen 3\u201d that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.",
  "id": "GHSA-745h-3gvr-9mc6",
  "modified": "2022-08-20T00:00:46Z",
  "published": "2022-08-11T00:00:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46778"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1039"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-46778

Vulnerability from cvelistv5

Published

2022-08-09 20:20

Modified

2024-09-17 00:36

Severity ?

Summary

References

▼	URL	Tags
	https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1039	x_refsource_MISC

Impacted products

▼	Vendor	Product
	AMD	AMD Processors

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JSON

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            ],
            "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1039"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "versions": [
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      ],
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2022-08-09T20:20:12",
        "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "shortName": "AMD"
      },
      "references": [
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          ],
          "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1039"
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      ],
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      },
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          "ASSIGNER": "psirt@amd.com",
          "DATE_PUBLIC": "2022-08-09T16:00:00.000Z",
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        },
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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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