CVE-2020-13895
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-13895
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-13895.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-13895
- Published
- 2020-06-07T01:15:10Z
- Modified
- 2025-10-15T11:53:49.038427Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References