CVE-2020-5255

{"containers": {"cna": {"affected": [{"product": "symfony", "vendor": "symfony", "versions": [{"status": "affected", "version": ">= 4.4.0 and < 4.4.7"}, {"status": "affected", "version": ">= 5.0.0 and < 5.0.7"}]}], "descriptions": [{"lang": "en", "value": "In Symfony before versions 4.4.7 and 5.0.7, when a `Response` does not contain a `Content-Type` header, affected versions of Symfony can fallback to the format defined in the `Accept` header of the request, leading to a possible mismatch between the response&#39;s content and `Content-Type` header. When the response is cached, this can prevent the use of the website by other users. This has been patched in versions 4.4.7 and 5.0.7."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.6, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-435", "description": "CWE-435 Improper Interaction Between Multiple Correctly-Behaving Entities", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-04-09T16:06:00.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6"}, {"tags": ["x_refsource_MISC"], "url": "https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header"}, {"name": "FEDORA-2020-fade6a8df7", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36JLPHUPKDFAX6D5WYFC4ALO2K7RDUQ/"}], "source": {"advisory": "GHSA-mcx4-f5f5-4859", "discovery": "UNKNOWN"}, "title": "Prevent cache poisoning via a Response Content-Type header", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-5255", "STATE": "PUBLIC", "TITLE": "Prevent cache poisoning via a Response Content-Type header"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "symfony", "version": {"version_data": [{"version_value": ">= 4.4.0 and < 4.4.7"}, {"version_value": ">= 5.0.0 and < 5.0.7"}]}}]}, "vendor_name": "symfony"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In Symfony before versions 4.4.7 and 5.0.7, when a `Response` does not contain a `Content-Type` header, affected versions of Symfony can fallback to the format defined in the `Accept` header of the request, leading to a possible mismatch between the response&#39;s content and `Content-Type` header. When the response is cached, this can prevent the use of the website by other users. This has been patched in versions 4.4.7 and 5.0.7."}]}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.6, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-435 Improper Interaction Between Multiple Correctly-Behaving Entities"}]}]}, "references": {"reference_data": [{"name": "https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859", "refsource": "CONFIRM", "url": "https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859"}, {"name": "https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6", "refsource": "MISC", "url": "https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6"}, {"name": "https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header", "refsource": "MISC", "url": "https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header"}, {"name": "FEDORA-2020-fade6a8df7", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C36JLPHUPKDFAX6D5WYFC4ALO2K7RDUQ/"}]}, "source": {"advisory": "GHSA-mcx4-f5f5-4859", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T08:22:09.086Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header"}, {"name": "FEDORA-2020-fade6a8df7", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36JLPHUPKDFAX6D5WYFC4ALO2K7RDUQ/"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-5255", "datePublished": "2020-03-30T19:30:15.000Z", "dateReserved": "2020-01-02T00:00:00.000Z", "dateUpdated": "2024-08-04T08:22:09.086Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "symfony", "vendor": "symfony", "versions": [{"status": "affected", "version": ">= 4.4.0 and < 4.4.7"}, {"status": "affected", "version": ">= 5.0.0 and < 5.0.7"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "matchCriteriaId": "95F04BAB-4B76-4142-B000-67FA0A9F73F4", "versionEndExcluding": "4.4.7", "versionStartIncluding": "4.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*", "matchCriteriaId": "A656BCAC-1974-4E5D-B7E3-4162A6153A4B", "versionEndExcluding": "5.0.7", "versionStartIncluding": "5.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Symfony before versions 4.4.7 and 5.0.7, when a `Response` does not contain a `Content-Type` header, affected versions of Symfony can fallback to the format defined in the `Accept` header of the request, leading to a possible mismatch between the response&#39;s content and `Content-Type` header. When the response is cached, this can prevent the use of the website by other users. This has been patched in versions 4.4.7 and 5.0.7."}, {"lang": "es", "value": "En Symfony en versiones anteriores a las versiones 4.4.7 y 5.0.7, cuando una \"Response\" no contiene un encabezado \"Content-Type\", las versiones afectadas de Symfony pueden retroceder al formato definido en el encabezado \"Accept\" de la petici\u00f3n, conllevando a una posible falta de coincidencia entre el contenido response's y el encabezado \"Content-Type\". Cuando la respuesta es almacenada en cach\u00e9, esto puede impedir el uso del sitio web por otros usuarios. Esto ha sido parcheado en las versiones 4.4.7 y 5.0.7."}], "id": "CVE-2020-5255", "lastModified": "2026-06-17T03:21:08.493", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.6, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-03-30T20:15:19.570", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859"}, {"source": "security-advisories@github.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36JLPHUPKDFAX6D5WYFC4ALO2K7RDUQ/"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36JLPHUPKDFAX6D5WYFC4ALO2K7RDUQ/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-435"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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