github - ghsa-38q7-2qqc-fvvr

GHSA-38Q7-2QQC-FVVR

Vulnerability from github – Published: 2023-05-09 21:30 – Updated: 2024-04-04 03:58

Details

Time-of-check Time-of-use (TOCTOU) in the BIOS2PSP command may allow an attacker with a malicious BIOS to create a race condition causing the ASP bootloader to perform out-of-bounds SRAM reads upon an S3 resume event potentially leading to a denial of service.

Severity ?

5.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-46792"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-09T20:15:12Z",
    "severity": "MODERATE"
  },
  "details": "Time-of-check Time-of-use (TOCTOU) in the\nBIOS2PSP command may allow an attacker with a malicious BIOS to create a race\ncondition causing the ASP bootloader to perform out-of-bounds SRAM reads upon\nan S3 resume event potentially leading to a denial of service.\n\n\n\n\n",
  "id": "GHSA-38q7-2qqc-fvvr",
  "modified": "2024-04-04T03:58:03Z",
  "published": "2023-05-09T21:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46792"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-46792 (GCVE-0-2021-46792)

Vulnerability from cvelistv5 – Published: 2023-05-09 19:01 – Updated: 2025-01-28 15:33

Summary

Severity ?

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

AMD

References

URL

Tags

https://www.amd.com/en/corporate/product-security…

vendor-advisory

Impacted products

Vendor

Product

Version

AMD

Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4

Affected: various

AMD	Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4	Affected: Various
AMD	Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP	Affected: various
AMD	Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5	Affected: various
AMD	Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”	Affected: various
AMD	Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”	Affected: various
AMD	Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”	Affected: various
AMD	Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”	Affected: various

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:17:42.668Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-46792",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-28T15:33:21.378470Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-367",
                "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-01-28T15:33:26.980Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "AGESA",
          "platforms": [
            "x86"
          ],
          "product": "Ryzen\u2122 2000 series Desktop Processors \u201cRaven Ridge\u201d AM4",
          "vendor": "AMD",
          "versions": [
            {
              "status": "affected",
              "version": "various "
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "AGESA",
          "platforms": [
            "x86"
          ],
          "product": "Ryzen\u2122 5000 Series Desktop processor with Radeon\u2122 Graphics  \u201cCezanne\u201d AM4",
          "vendor": "AMD",
          "versions": [
            {
              "status": "affected",
              "version": "Various "
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "AGESA",
          "platforms": [
            "x86"
          ],
          "product": "Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics \u201cDali\u201d/\u201dDali\u201d ULP",
          "vendor": "AMD",
          "versions": [
            {
              "status": "affected",
              "version": "various "
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "AGESA",
          "platforms": [
            "x86"
          ],
          "product": "Ryzen\u2122 2000 Series Mobile Processors \u201cRaven Ridge\u201d FP5",
          "vendor": "AMD",
          "versions": [
            {
              "status": "affected",
              "version": "various "
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "AGESA",
          "platforms": [
            "x86"
          ],
          "product": "Ryzen\u2122 3000 Series Mobile processor, 2nd Gen AMD Ryzen\u2122 Mobile Processors with Radeon\u2122 Graphics \u201cPicasso\u201d",
          "vendor": "AMD",
          "versions": [
            {
              "status": "affected",
              "version": "various "
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "AGESA",
          "platforms": [
            "x86"
          ],
          "product": "Ryzen\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics \u201cRenoir\u201d ",
          "vendor": "AMD",
          "versions": [
            {
              "status": "affected",
              "version": "various "
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "AGESA",
          "platforms": [
            "x86"
          ],
          "product": "Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics \u201cLucienne\u201d",
          "vendor": "AMD",
          "versions": [
            {
              "status": "affected",
              "version": "various "
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "packageName": "AGESA",
          "platforms": [
            "x86"
          ],
          "product": "Ryzen\u2122 5000 Series Mobile processors with Radeon\u2122 Graphics \u201cCezanne\u201d",
          "vendor": "AMD",
          "versions": [
            {
              "status": "affected",
              "version": "various "
            }
          ]
        }
      ],
      "datePublic": "2023-05-09T16:30:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Time-of-check Time-of-use (TOCTOU) in the\nBIOS2PSP command may allow an attacker with a malicious BIOS to create a race\ncondition causing the ASP bootloader to perform out-of-bounds SRAM reads upon\nan S3 resume event potentially leading to a denial of service.\n\n\n\n\u003cbr\u003e"
            }
          ],
          "value": "Time-of-check Time-of-use (TOCTOU) in the\nBIOS2PSP command may allow an attacker with a malicious BIOS to create a race\ncondition causing the ASP bootloader to perform out-of-bounds SRAM reads upon\nan S3 resume event potentially leading to a denial of service.\n\n\n\n\n"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-05-09T19:01:38.204Z",
        "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "shortName": "AMD"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001"
        }
      ],
      "source": {
        "advisory": "AMD-SB-4001",
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
    "assignerShortName": "AMD",
    "cveId": "CVE-2021-46792",
    "datePublished": "2023-05-09T19:01:38.204Z",
    "dateReserved": "2022-05-04T18:14:06.437Z",
    "dateUpdated": "2025-01-28T15:33:26.980Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-38Q7-2QQC-FVVR

CVE-2021-46792 (GCVE-0-2021-46792)

Tags

Sightings

Nomenclature