{"id":"GHSA-g4vj-x7v9-h82m","summary":"Overflow in libsecp256k1","details":"An issue was discovered in the libsecp256k1 crate before 0.5.0 for Rust. It can verify an invalid signature because it allows the R or S parameter to be larger than the curve order, aka an overflow.","aliases":["CVE-2021-38195","RUSTSEC-2021-0076"],"modified":"2023-11-08T04:06:26.227511Z","published":"2021-08-25T20:56:03Z","database_specific":{"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2021-08-18T21:20:32Z","nvd_published_at":"2021-08-08T06:15:00Z","cwe_ids":["CWE-190","CWE-347"]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38195"},{"type":"WEB","url":"https://github.com/paritytech/libsecp256k1/pull/67"},{"type":"PACKAGE","url":"https://github.com/paritytech/libsecp256k1"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2021-0076.html"}],"affected":[{"package":{"name":"libsecp256k1","ecosystem":"crates.io","purl":"pkg:cargo/libsecp256k1"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.5.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-g4vj-x7v9-h82m/GHSA-g4vj-x7v9-h82m.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}