CVE-2020-13777
HIGH7.4EPSS 1.2%gnutls28 - security update
Published: 6/4/2020Modified: 4/28/2026
Description
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.
Affected packages (3)
- Alpine/gnutlsfrom 0, < 3.6.14-r0
- Debian/gnutls28from 0, < 3.6.14-1
- Debian/gnutls28from 0, < 3.6.7-4+deb10u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |