{"api_version":"1","generated_at":"2026-04-23T15:09:24+00:00","cve":"CVE-2019-18222","urls":{"html":"https://cve.report/CVE-2019-18222","api":"https://cve.report/api/cve/CVE-2019-18222.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-18222","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-18222"},"summary":{"title":"CVE-2019-18222","description":"The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2020-01-23 17:15:00","updated_at":"2023-03-03 15:25:00"},"problem_types":["CWE-203"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/","name":"FEDORA-2020-5bcfae9f46","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 31 Update: mbedtls-2.16.4-1.fc31 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/","name":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/","refsource":"MISC","tags":[],"title":"[SECURITY] Fedora 31 Update: mbedtls-2.16.4-1.fc31 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://tls.mbed.org/tech-updates/security-advisories","name":"https://tls.mbed.org/tech-updates/security-advisories","refsource":"MISC","tags":["Vendor Advisory"],"title":"Security Advisories - Tech Updates - mbed TLS (Previously PolarSSL)","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html","name":"[debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 3249-1] mbedtls security update","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12","name":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"Side channel attack on ECDSA - Tech Updates - Mbed TLS (Previously PolarSSL)","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/","name":"FEDORA-2020-8d3ea0fe8d","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 30 Update: mbedtls-2.16.4-1.fc30 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/","name":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/","refsource":"MISC","tags":[],"title":"[SECURITY] Fedora 30 Update: mbedtls-2.16.4-1.fc30 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-18222","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-18222","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2019","cve_id":"18222","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"arm","cpe5":"mbed_crypto","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18222","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"arm","cpe5":"mbed_crypto","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18222","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"arm","cpe5":"mbed_tls","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18222","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"arm","cpe5":"mbed_tls","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18222","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18222","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"30","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"18222","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"31","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2019-18222","qid":"181446","title":"Debian Security Update for mbedtls (DLA 3249-1)"},{"cve":"CVE-2019-18222","qid":"500396","title":"Alpine Linux Security Update for mbedtls"},{"cve":"CVE-2019-18222","qid":"504154","title":"Alpine Linux Security Update for mbedtls"}]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2019-18222","ASSIGNER":"cve@mitre.org","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a","version_affected":"?"}]}}]}}]}},"references":{"reference_data":[{"url":"https://tls.mbed.org/tech-updates/security-advisories","refsource":"MISC","name":"https://tls.mbed.org/tech-updates/security-advisories"},{"url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html","refsource":"MISC","name":"https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"},{"url":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12","refsource":"MISC","name":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/","refsource":"MISC","name":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/","refsource":"MISC","name":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/"}]}},"nvd":{"publishedDate":"2020-01-23 17:15:00","lastModifiedDate":"2023-03-03 15:25:00","problem_types":["CWE-203"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM"},"exploitabilityScore":1,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:M/Au:N/C:P/I:N/A:N","accessVector":"LOCAL","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":1.9},"severity":"LOW","exploitabilityScore":3.4,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*","versionStartIncluding":"2.17.0","versionEndExcluding":"2.20.0","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*","versionStartIncluding":"2.8.0","versionEndExcluding":"2.16.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*","versionEndExcluding":"2.7.13","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:arm:mbed_crypto:*:*:*:*:*:*:*:*","versionEndExcluding":"3.0.0","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2019","CveId":"18222","Ordinal":"158596","Title":"CVE-2019-18222","CVE":"CVE-2019-18222","Year":"2019"},"notes":[{"CveYear":"2019","CveId":"18222","Ordinal":"1","NoteData":"The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"18222","Ordinal":"2","NoteData":"2020-01-23","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"18222","Ordinal":"3","NoteData":"2020-02-18","Type":"Other","Title":"Modified"}]}}}