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Use of a Broken or Risky Cryptographic Algorithm The advisory has been revoked - it doesn't affect any version of package gnutls28  (opens in a new tab)

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EPSS
3.39% (88th percentile)

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  • Snyk IDSNYK-UBUNTU1804-GNUTLS28-611267
  • published3 Apr 2020
  • disclosed3 Apr 2020
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Introduced: 3 Apr 2020

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

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls28 package and not the gnutls28 package as distributed by Ubuntu.

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.

References