github - ghsa-8qrv-qg3h-g8m6

ghsa-8qrv-qg3h-g8m6

Vulnerability from github

Published

2021-12-11 00:00

Modified

2021-12-16 00:03

Details

A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).

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{
  "affected": [],
  "aliases": [
    "CVE-2021-26340"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-10T22:15:00Z",
    "severity": "HIGH"
  },
  "details": "A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).",
  "id": "GHSA-8qrv-qg3h-g8m6",
  "modified": "2021-12-16T00:03:01Z",
  "published": "2021-12-11T00:00:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26340"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1023"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2021-26340

Vulnerability from cvelistv5

Published

2021-12-10 21:55

Modified

2024-09-16 16:29

Severity ?

Summary

References

▼	URL	Tags
	https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1023	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

AMD

AMD EPYC™

Version: Processor <

Show details on NVD website

JSON

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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1023"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "AMD EPYC\u2122",
          "vendor": "AMD",
          "versions": [
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              "status": "affected",
              "version": "Processor",
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        }
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              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-12-10T21:55:10",
        "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-1023"
        }
      ],
      "source": {
        "advisory": "AMD-SB-1023",
        "discovery": "EXTERNAL"
      },
      "x_generator": {
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      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@amd.com",
          "DATE_PUBLIC": "2021-12-06T20:30:00.000Z",
          "ID": "CVE-2021-26340",
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        },
        "affects": {
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            "vendor_data": [
              {
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  "cveMetadata": {
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    "dateReserved": "2021-01-29T00:00:00",
    "dateUpdated": "2024-09-16T16:29:03.775Z",
    "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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