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


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
3.39% (88th percentile)

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  • Snyk IDSNYK-ALPINE316-GNUTLS-2842683
  • published21 Jul 2020
  • 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:3.16 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:3.16 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 Base Scores

version 3.1