CVE-2019-11340

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowed_local_3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on user@bad.example.net@good.example.com returns the user@bad.example.net substring."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2019-04-19T13:35:36.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://twitter.com/matrixdotorg/status/1118934335963500545"}, {"tags": ["x_refsource_MISC"], "url": "https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2/"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/matrix-org/sydent/compare/7c002cd...09278fb"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2019-11340", "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": "util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowed_local_3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on user@bad.example.net@good.example.com returns the user@bad.example.net substring."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://twitter.com/matrixdotorg/status/1118934335963500545", "refsource": "MISC", "url": "https://twitter.com/matrixdotorg/status/1118934335963500545"}, {"name": "https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2/", "refsource": "MISC", "url": "https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2/"}, {"name": "https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc", "refsource": "MISC", "url": "https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc"}, {"name": "https://github.com/matrix-org/sydent/compare/7c002cd...09278fb", "refsource": "MISC", "url": "https://github.com/matrix-org/sydent/compare/7c002cd...09278fb"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T22:48:09.226Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://twitter.com/matrixdotorg/status/1118934335963500545"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/matrix-org/sydent/compare/7c002cd...09278fb"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2019-11340", "datePublished": "2019-04-19T13:35:36.000Z", "dateReserved": "2019-04-19T00:00:00.000Z", "dateUpdated": "2024-08-04T22:48:09.226Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:matrix:sydent:*:*:*:*:*:*:*:*", "matchCriteriaId": "CE553235-44B4-4D67-AF42-EC3F61590182", "versionEndExcluding": "1.0.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowed_local_3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on user@bad.example.net@good.example.com returns the user@bad.example.net substring."}, {"lang": "es", "value": "Vulnerabilidad en archivo util/emailutils.py en Matrix Sydent anterior a las restricciones de registro de la versi\u00f3n 1.0.2 basado en el dominio de correo electr\u00f3nico, si la opci\u00f3n allowed_local_3pids est\u00e1 habilitada. Esto ocurre debido a un comportamiento potencialmente no deseado en Python, en el que una llamada de email.utils.parseaddr en user@bad.example.net@good.example.com devuelve la subcadena user@bad.example.net."}], "id": "CVE-2019-11340", "lastModified": "2026-06-17T02:12:44.423", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-04-19T14:29:00.417", "references": [{"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/matrix-org/sydent/compare/7c002cd...09278fb"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://twitter.com/matrixdotorg/status/1118934335963500545"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/matrix-org/sydent/compare/7c002cd...09278fb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://twitter.com/matrixdotorg/status/1118934335963500545"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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