CVE-2021-38195
9.8 CRITICALAn issue was discovered in the libsecp256k1 crate before 0.5.0 for Rust
Published: 2021-08-08 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 9.8 CRITICAL
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-347
Affected products
| Vendor | Product |
|---|---|
| parity | libsecp256k1 |
Description
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-38195
- [Other]https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/libsecp256k1/RUSTSEC-2021-0076.md
- [Patch]https://rustsec.org/advisories/RUSTSEC-2021-0076.html
- [Other]https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/libsecp256k1/RUSTSEC-2021-0076.md
- [Patch]https://rustsec.org/advisories/RUSTSEC-2021-0076.html
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