Use of a Broken or Risky Cryptographic Algorithm Affecting gnutls package, versions <3.6.13-r0


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.25% (65th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use of a Broken or Risky Cryptographic Algorithm vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ALPINE319-GNUTLS-6106564
  • published8 Dec 2023
  • disclosed3 Apr 2020

Introduced: 3 Apr 2020

CVE-2020-11501  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade Alpine:3.19 gnutls to version 3.6.13-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls package and not the gnutls package as distributed by Alpine. See How to fix? for Alpine:3.19 relevant fixed versions and status.

GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.

CVSS Scores

version 3.1