{"id":"GHSA-7cqg-8449-rmfv","summary":"Observable Discrepancy in libsecp256k1-rs","details":"A timing vulnerability in the Scalar::check_overflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack.","aliases":["CVE-2019-20399","RUSTSEC-2020-0156"],"modified":"2023-11-08T04:01:30.388161Z","published":"2021-08-25T21:01:27Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2021-07-27T15:21:02Z","nvd_published_at":"2020-01-23T00:15:00Z","cwe_ids":["CWE-203","CWE-362"],"severity":"MODERATE"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-20399"},{"type":"WEB","url":"https://github.com/paritytech/libsecp256k1/commit/11ba23a9766a5079918cd9f515bc100bc8164b50"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2020-0156.html"}],"affected":[{"package":{"name":"libsecp256k1-rs","ecosystem":"crates.io","purl":"pkg:cargo/libsecp256k1-rs"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.3.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-7cqg-8449-rmfv/GHSA-7cqg-8449-rmfv.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}