CVE-2020-13895
Summary
| CVE | CVE-2020-13895 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-06-07 01:15:00 UTC |
| Updated | 2020-06-15 16:40:00 UTC |
| Description | Crypt::Perl::ECDSA in the Crypt::Perl (aka p5-Crypt-Perl) module before 0.32 for Perl fails to verify correct ECDSA signatures when r and s are small and when s = 1. This happens when using the curve secp256r1 (prime256v1). This could conceivably have a security-relevant impact if an attacker wishes to use public r and s values when guessing whether signature verification will fail. |
Risk And Classification
Problem Types: CWE-347
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | P5-crypt-perl Project | P5-crypt-perl | All | All | All | All |
| Application | P5-crypt-perl Project | P5-crypt-perl | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Fix ECDSA verify when r and s are small. · FGasper/p5-Crypt-Perl@f960ce7 · GitHub | MISC | github.com | Patch, Third Party Advisory |
| Crypt::Perl::ECDSA fails to verify ECDSA signatures when r and s are small and when s = 1 · Issue #14 · FGasper/p5-Crypt-Perl · GitHub | MISC | github.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.