CVE-2021-38578

{"id": "CVE-2021-38578", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "infosec@edk2.groups.io", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 0.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2022-03-03T22:15:08.423", "references": [{"url": "https://bugzilla.tianocore.org/show_bug.cgi?id=3387", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "infosec@edk2.groups.io"}, {"url": "https://www.insyde.com/security-pledge/SA-2023024", "tags": ["Third Party Advisory"], "source": "infosec@edk2.groups.io"}, {"url": "https://bugzilla.tianocore.org/show_bug.cgi?id=3387", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.insyde.com/security-pledge/SA-2023024", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "infosec@edk2.groups.io", "description": [{"lang": "en", "value": "CWE-124"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize."}, {"lang": "es", "value": "Unas comprobaciones existentes de CommBuffer en SmmEntryPoint no detectan el desbordamiento cuando es calculado BufferSize"}], "lastModified": "2025-11-03T20:15:49.767", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:tianocore:edk2:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A2B1E98B-2D63-42E3-B6F8-139CC32BA4B0", "versionEndIncluding": "202202"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:insyde:kernel:5.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FFCC4619-B867-4E23-AF05-FF92B43628AF"}, {"criteria": "cpe:2.3:o:insyde:kernel:5.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FB40061A-BEDF-4D72-BF2D-D1B10EB80A60"}, {"criteria": "cpe:2.3:o:insyde:kernel:5.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9D6AFE61-A2A4-49DF-A8EE-B2F425DA7A08"}, {"criteria": "cpe:2.3:o:insyde:kernel:5.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D21132C0-F2CF-4134-A165-926155031913"}, {"criteria": "cpe:2.3:o:insyde:kernel:5.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6549F7F1-A438-4C84-9D66-C89C697E2A9B"}, {"criteria": "cpe:2.3:o:insyde:kernel:5.5:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DE339FA1-8572-4365-B420-530D62686C08"}], "operator": "OR"}]}], "sourceIdentifier": "infosec@edk2.groups.io"}