CVE-2020-13895

Katalog CVE

CVSS 8.8 · High EPSS 0,71%

Kerentanan Improper Verification of Cryptographic Signature pada p5-crypt-perl project p5-crypt-perl. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

7 Juni 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,71% peluang dieksploitasi; lebih tinggi dari 52,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FGasper/p5-Crypt-Perl/commit/f960ce75502acf7404187231a706672f8369acb2 patch · advisory pihak ketiga
• https://github.com/FGasper/p5-Crypt-Perl/issues/14 advisory pihak ketiga