CVE-2020-36476

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2020-36476", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2024-08-04T17:30:08.314Z", "dateReserved": "2021-08-23T00:00:00.000Z", "datePublished": "2021-08-23T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2022-12-26T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17"}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8"}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0"}, {"name": "[debian-lts-announce] 20211123 [SECURITY] [DLA 2826-1] mbedtls security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html"}, {"name": "[debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T17:30:08.314Z"}, "title": "CVE Program Container", "references": [{"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17", "tags": ["x_transferred"]}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8", "tags": ["x_transferred"]}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0", "tags": ["x_transferred"]}, {"name": "[debian-lts-announce] 20211123 [SECURITY] [DLA 2826-1] mbedtls security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html"}, {"name": "[debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"}]}]}}

{}

{"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:arm:mbed_tls:*:*:*:*:*:*:*:*", "matchCriteriaId": "7B433A90-3067-4BE3-8ADC-27526D105208", "versionEndExcluding": "2.7.17", "vulnerable": true}, {"criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "matchCriteriaId": "5FCB1BC3-0374-4CD1-9DF9-AFB95CD1345A", "versionEndExcluding": "2.16.8", "versionStartIncluding": "2.8.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "matchCriteriaId": "6180181F-E908-42B7-BBF2-15C437DCC34D", "versionEndExcluding": "2.24.0", "versionStartIncluding": "2.17.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory."}, {"lang": "es", "value": "Se ha detectado un problema en Mbed TLS versiones anteriores a 2.24.0 (y versiones anteriores a 2.16.8 LTS y versiones anteriores a 2.7.17 LTS). Falta la puesta a cero de los b\u00faferes de texto plano en la funci\u00f3n mbedtls_ssl_read para borrar de la memoria los datos no usados de la aplicaci\u00f3n."}], "id": "CVE-2020-36476", "lastModified": "2026-06-17T03:15:34.427", "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": "nvd@nist.gov", "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-23T02:15:06.987", "references": [{"source": "cve@mitre.org", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-212"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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