{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-08-10T14:06:09.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://nostarttls.secvuln.info"}, {"tags": ["x_refsource_MISC"], "url": "https://www.exim.org"}, {"tags": ["x_refsource_MISC"], "url": "https://www.exim.org/static/doc/security/CVE-2021-38371.txt"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "[email protected]", "ID": "CVE-2021-38371", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://nostarttls.secvuln.info", "refsource": "MISC", "url": "https://nostarttls.secvuln.info"}, {"name": "https://www.exim.org", "refsource": "MISC", "url": "https://www.exim.org"}, {"name": "https://www.exim.org/static/doc/security/CVE-2021-38371.txt", "refsource": "MISC", "url": "https://www.exim.org/static/doc/security/CVE-2021-38371.txt"}]}}}, "adp": [{"title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://nostarttls.secvuln.info"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.exim.org"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.exim.org/static/doc/security/CVE-2021-38371.txt"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00029.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T21:45:12.326Z"}}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-38371", "datePublished": "2021-08-10T14:06:09.000Z", "dateReserved": "2021-08-10T00:00:00.000Z", "dateUpdated": "2025-11-03T21:45:12.326Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.2"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*", "matchCriteriaId": "DD6DD0B4-A0DA-44C6-91B3-418936196213", "versionEndIncluding": "4.94.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending."}, {"lang": "es", "value": "La funci\u00f3n STARTTLS en Exim versiones hasta 4.94.2, permite la inyecci\u00f3n de respuestas (buffering) durante el env\u00edo MTA SMTP"}], "id": "CVE-2021-38371", "lastModified": "2025-11-03T22:15:50.170", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "[email protected]", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2021-08-10T15:15:08.310", "references": [{"source": "[email protected]", "tags": ["Tool Signature"], "url": "https://nostarttls.secvuln.info"}, {"source": "[email protected]", "tags": ["Product"], "url": "https://www.exim.org"}, {"source": "[email protected]", "tags": ["Broken Link", "Vendor Advisory"], "url": "https://www.exim.org/static/doc/security/CVE-2021-38371.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00029.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Tool Signature"], "url": "https://nostarttls.secvuln.info"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product"], "url": "https://www.exim.org"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link", "Vendor Advisory"], "url": "https://www.exim.org/static/doc/security/CVE-2021-38371.txt"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "[email protected]", "type": "Primary"}]}

{}