---
id: CVE-2022-2509
title: A vulnerability found in gnutls
summary: >-
  A vulnerability found in gnutls. This security flaw happens because of a
  double free error occurs during verification of pkcs7 signatures in
  gnutls_pkcs7_verify function.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-415
  - CWE-415
vendor: gnu
product: gnutls
affected:
  - gnutls < 3.7.7
  - enterprise_linux = 8.0
  - enterprise_linux = 9.0
  - fedora = 35
  - debian_linux = 10.0
  - debian_linux = 11.0
patched:
  - gnutls 3.7.7
published: '2022-08-01'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:17:21.447'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-2509'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2022-2509'
    label: secalert@redhat.com
  - url: 'https://lists.debian.org/debian-lts-announce/2022/08/msg00002.html'
    label: secalert@redhat.com
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FL27JS3VM74YEQU7PGB62USO3KSBYZX/
    label: secalert@redhat.com
  - url: 'https://lists.gnupg.org/pipermail/gnutls-help/2022-July/004746.html'
    label: secalert@redhat.com
  - url: 'https://www.debian.org/security/2022/dsa-5203'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2022-2509'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/08/msg00002.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FL27JS3VM74YEQU7PGB62USO3KSBYZX/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.gnupg.org/pipermail/gnutls-help/2022-July/004746.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2022/dsa-5203'
    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
epss: 0.01988
epssPercentile: 0.80093
ingestedAt: '2026-10-14T13:30:58.416Z'
---

## Overview

A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.

## Affected

- `gnutls < 3.7.7`
- `enterprise_linux = 8.0`
- `enterprise_linux = 9.0`
- `fedora = 35`
- `debian_linux = 10.0`
- `debian_linux = 11.0`

## Remediation

Upgrade past the affected range:

- `gnutls 3.7.7`