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.
Advisories
Source ID Title
EUVD EUVD EUVD-2020-6103 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.
Fixes

Solution

No solution given by the vendor.


Workaround

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History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T12:32:14.379Z

Reserved: 2020-06-07T00:00:00

Link: CVE-2020-13895

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-06-07T01:15:10.550

Modified: 2024-11-21T05:02:05.990

Link: CVE-2020-13895

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses