Use of a Broken or Risky Cryptographic Algorithm Affecting gnutls28 package, versions <3.6.13-2ubuntu1.11


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.72% (49th percentile)

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  • Snyk IDSNYK-UBUNTU2004-GNUTLS28-6481604
  • published23 Mar 2024
  • disclosed21 Mar 2024

Introduced: 21 Mar 2024

CVE-2024-28834  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 gnutls28 to version 3.6.13-2ubuntu1.11 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls28 package and not the gnutls28 package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

A flaw was found in GnuTLS. The Minerva attack is a cryptographic vulnerability that exploits deterministic behavior in systems like GnuTLS, leading to side-channel leaks. In specific scenarios, such as when using the GNUTLS_PRIVKEY_FLAG_REPRODUCIBLE flag, it can result in a noticeable step in nonce size from 513 to 512 bits, exposing a potential timing side-channel.

CVSS Base Scores

version 3.1