---
id: CVE-2024-28834
title: A flaw was found in GnuTLS
summary: >-
  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…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-327
published: '2024-03-21'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:17:42.280'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-28834'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2024:1784'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:1879'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:1997'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:2044'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:2570'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2024:2889'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2024-28834'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2269228'
    label: secalert@redhat.com
  - url: 'https://lists.gnupg.org/pipermail/gnutls-help/2024-March/004845.html'
    label: secalert@redhat.com
  - url: 'https://minerva.crocs.fi.muni.cz/'
    label: secalert@redhat.com
  - url: 'http://www.openwall.com/lists/oss-security/2024/03/22/1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2024/03/22/2'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://access.redhat.com/errata/RHSA-2024:1784'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://access.redhat.com/errata/RHSA-2024:1879'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://access.redhat.com/errata/RHSA-2024:1997'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://access.redhat.com/errata/RHSA-2024:2044'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://access.redhat.com/errata/RHSA-2024:2570'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://access.redhat.com/errata/RHSA-2024:2889'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://access.redhat.com/security/cve/CVE-2024-28834'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2269228'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/09/msg00019.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.gnupg.org/pipermail/gnutls-help/2024-March/004845.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://minerva.crocs.fi.muni.cz/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://people.redhat.com/~hkario/marvin/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20240524-0004/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00724
epssPercentile: 0.52991
ingestedAt: '2026-10-15T03:30:12.643Z'
vendor: Red Hat
product: gnutls
affected:
  - gnutls 3.7.6-23
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls (all versions)
  - gnutls
  - gnutls
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-03-21T18:20:34.669036Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.