CVE-2020-13777

ADVISORY - nist

Summary

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.

EPSS Score⁠: 0.00524 (0.661)

Common Weakness Enumeration (CWE)

ADVISORY - nist

CWE-327⁠

Use of a Broken or Risky Cryptographic Algorithm

ADVISORY - redhat

CWE-345⁠

Insufficient Verification of Data Authenticity

Impacted images

Advisories

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