gsd-2021-46795
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2021-46795", "id": "GSD-2021-46795" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-46795" ], "details": "A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service.", "id": "GSD-2021-46795", "modified": "2023-12-13T01:23:32.700619Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "psirt@amd.com", "ID": "CVE-2021-46795", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Ryzen 5000 Series", "version": { "version_data": [ { "version_affected": "=", "version_value": "various " } ] } }, { "product_name": "Ryzen 3000 Series ", "version": { "version_data": [ { "version_affected": "=", "version_value": "various " } ] } } ] }, "vendor_name": " AMD" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service." } ] }, "generator": { "engine": "Vulnogram 0.1.0-dev" }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031", "refsource": "MISC", "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031" } ] }, "source": { "advisory": "AMD-SB-1031", "discovery": "UNKNOWN" } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:amd:comboam4v2_pi_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "1.2.0.5", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:h:amd:comboam4v2_pi:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false } ], "operator": "OR" } ], "cpe_match": [], "operator": "AND" }, { "children": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:amd:renoirpi-fp6_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "1.0.0.7", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:h:amd:comboam4v2_pi:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false } ], "operator": "OR" } ], "cpe_match": [], "operator": "AND" }, { "children": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:amd:cezannepi-fp6_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "1.0.0.6", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:h:amd:cezannepi-fp6:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false } ], "operator": "OR" } ], "cpe_match": [], "operator": "AND" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "psirt@amd.com", "ID": "CVE-2021-46795" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-367" } ] } ] }, "references": { "reference_data": [ { "name": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031", "refsource": "MISC", "tags": [ "Vendor Advisory" ], "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031" } ] } }, "impact": { "baseMetricV3": { "cvssV3": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 1.0, "impactScore": 3.6 } }, "lastModifiedDate": "2023-01-20T18:36Z", "publishedDate": "2023-01-11T08:15Z" } } }
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Sightings
Author | Source | Type | Date |
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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.