CVE-2020-13777

Katalog CVE

CVSS 7.4 · High EPSS 22,3%

Kerentanan Use of a Broken or Risky Cryptographic Algorithm pada gnutls, fedoraproject fedora +2 lainnya. Skor CVSS 3.1 7.4 (High) menurut NVD.

Deskripsi (NVD)

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.

Rincian

Terbit di NVD

4 Juni 2020

Terakhir diubah

14 Oktober 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-327: Use of a Broken or Risky Cryptographic Algorithm

EPSS (30 hari)

22,3% peluang dieksploitasi; lebih tinggi dari 97,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://gnutls.org/security-new.html#GNUTLS-SA-2020-06-03 advisory vendor
• https://security.gentoo.org/glsa/202006-01 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20200619-0004/ advisory pihak ketiga
• https://usn.ubuntu.com/4384-1/ advisory pihak ketiga
• https://www.debian.org/security/2020/dsa-4697 advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00015.html broken link
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6C4DHUKV6M6SJ...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6RTXZOXC4MHTF...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRQBFK3UZ7SV7...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMB3UGI5H5RCF...
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html