CVE-2021-38195

    Dashboard / Vulnerabilities / CVE-2021-38195

    CVE-2021-38195

    Published: 8 Aug 2021Last Modified: 14 Mar 2026

    Summary:

    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.

    References: https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/libsecp256k1/RUSTSEC-2021-0076.md, https://rustsec.org/advisories/RUSTSEC-2021-0076.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -e3a885d42a7800c1ccebad94ad1e2b82c4df5c65

    Affected versions

    v0.2.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-38195 | CVE-DB