{"id":"JLSEC-2025-199","summary":"The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 doe...","details":"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.","modified":"2025-11-21T16:17:50.725568Z","published":"2025-11-21T15:59:04.054Z","upstream":["CVE-2019-18222"],"database_specific":{"license":"CC-BY-4.0","sources":[{"imported":"2025-11-20T23:04:00.263Z","published":"2020-01-23T17:15:11.893Z","modified":"2024-11-21T04:32:52.030Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2019-18222","id":"CVE-2019-18222","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2019-18222"}]},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/"},{"type":"WEB","url":"https://tls.mbed.org/tech-updates/security-advisories"},{"type":"WEB","url":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12"}],"affected":[{"package":{"name":"MbedTLS_jll","ecosystem":"Julia","purl":"pkg:julia/MbedTLS_jll?uuid=c8ffd9c3-330d-5841-b78e-0817d7145fa1"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.16.6+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-199.json"}}],"schema_version":"1.7.3"}