CVE-2020-13895

2020-06-0700:56:57

mitre

www.cve.org

8.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

59.5%

JSON

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.