CVE-2023-31355
Vulnerability from cvelistv5
Published
2024-08-05 16:04
Modified
2024-08-06 14:58
Severity ?
EPSS score ?
Summary
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
References
Impacted products
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"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 7003", "vendor": "AMD", "versions": [ { "lessThan": "EmbMilanPI-SP3 1.0.0.9", "status": "affected", "version": "various", "versionType": "Platform Initialization" } ] }, { "defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 9003", "vendor": "AMD", "versions": [ { "lessThan": "EmbGenoaPI-SP5 1.0.0.7", "status": "affected", "version": "various", "versionType": "Platform Initialization" } ] } ], "datePublic": "2024-08-05T16:00:00.000Z", "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eImproper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest\u0027s UMC seed potentially allowing reading of memory from a decommissioned guest.\u003c/span\u003e\n\n\u003c/span\u003e\n\n\u003c/span\u003e\n\n\u003c/span\u003e" } ], "value": "Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest\u0027s UMC seed potentially allowing reading of memory from a decommissioned guest." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-119", "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer", 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"{\"cve\":{\"id\":\"CVE-2023-31355\",\"sourceIdentifier\":\"psirt@amd.com\",\"published\":\"2024-08-05T16:15:34.510\",\"lastModified\":\"2024-08-06T16:30:24.547\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest\u0027s UMC seed potentially allowing reading of memory from a decommissioned guest.\"},{\"lang\":\"es\",\"value\":\"Una restricci\u00f3n inadecuada de las operaciones de escritura en el firmware SNP podr\u00eda permitir que un hipervisor malicioso sobrescriba la semilla UMC de un invitado, lo que podr\u00eda permitir la lectura de la memoria de un invitado fuera de servicio.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@amd.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":6.0,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.5,\"impactScore\":4.0}]},\"weaknesses\":[{\"source\":\"psirt@amd.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"}]}],\"references\":[{\"url\":\"https://https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3011.html\",\"source\":\"psirt@amd.com\"}]}}" } }
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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.