CVE-2020-13895

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Source
https://cve.org/CVERecord?id=CVE-2020-13895
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13895.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-13895
Published
2020-06-07T01:15:10.550Z
Modified
2026-07-08T12:06:17.573513Z
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

Affected packages

Git / github.com/fgasper/p5-crypt-perl

Affected ranges

Type
GIT
Repo
https://github.com/fgasper/p5-crypt-perl
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
143a88d80c477de0d70cc69d9fd911b134f4d589
Fixed
f960ce75502acf7404187231a706672f8369acb2
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.32"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:p5-crypt-perl_project:p5-crypt-perl:*:*:*:*:*:perl:*:*"
}

Affected versions

0.*
0.01
0.02
0.021
0.022
0.031
0.032
0.11
0.12
0.13
0.15
0.17
0.26
0.30
0.31

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13895.json"