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Fencer Vulns
high 7.5

CVE-2022-2509 json

A vulnerability found in gnutls.

published 2022-08-01 4 y ago modified 2026-10-14 25 d ago also EUVD-2022-34767 , JLSEC-2026-523

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

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.

Patch / fix

  • julia GnuTLS_jll 3.7.8+0
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • gnutls28 Debian 14, Debian 13, Debian 12 3.7.7-1

debian advisories DEBIAN-CVE-2022-2509

  • gnutls28 Ubuntu 18.04 LTS 3.5.18-1ubuntu1.6
  • gnutls28 Ubuntu 20.04 LTS 3.6.13-2ubuntu1.7
  • gnutls28 Ubuntu 22.04 LTS 3.7.3-4ubuntu1.1

ubuntu advisories UBUNTU-CVE-2022-2509

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gnutls RHEL 8 3.6.16-5.el8_6
  • gnutls-c++ RHEL 8 3.6.16-5.el8_6
  • gnutls-dane RHEL 8 3.6.16-5.el8_6
  • gnutls-utils RHEL 8 3.6.16-5.el8_6
  • gnutls RHEL 9 3.7.6-12.el9_0
  • gnutls-c++ RHEL 9 3.7.6-12.el9_0
  • gnutls-dane RHEL 9 3.7.6-12.el9_0
  • gnutls-utils RHEL 9 3.7.6-12.el9_0

red hat advisories RHSA-2022:7105RHSA-2022:6854

  • gnutls SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 3.7.3-150400.4.10.1
  • gnutls SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +10 more 3.6.7-150200.14.19.2
  • gnutls SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 3.6.7-150000.6.45.2

suse advisories SUSE-SU-2022:2919-1SUSE-SU-2022:2882-1SUSE-SU-2022:2830-1

  • gnutls openSUSE Tumbleweed 3.7.7-1.1
  • gnutls openSUSE Leap Micro 5.2 3.6.7-150200.14.19.2

opensuse advisories openSUSE-SU-2024:12233-1openSUSE-SU-2022:2882-1

  • gnutls AlmaLinux 8 3.6.16-5.el8_6
  • gnutls-c++ AlmaLinux 8 3.6.16-5.el8_6
  • gnutls-dane AlmaLinux 8 3.6.16-5.el8_6
  • gnutls-utils AlmaLinux 8 3.6.16-5.el8_6
  • gnutls AlmaLinux 9 3.7.6-12.el9_0
  • gnutls-c++ AlmaLinux 9 3.7.6-12.el9_0
  • gnutls-dane AlmaLinux 9 3.7.6-12.el9_0
  • gnutls-utils AlmaLinux 9 3.7.6-12.el9_0

almalinux advisories ALSA-2022:7105ALSA-2022:6854

  • gnutls Rocky Linux 8 3.6.16-5.el8_6
  • gnutls Rocky Linux 9 3.7.6-12.el9_0
  • nettle Rocky Linux 9 3.8-3.el9_0

rocky linux advisories RLSA-2022:7105RLSA-2022:6854

  • gnutls Alpine 3.15, Alpine 3.14, Alpine 3.13 3.7.1-r1
  • gnutls Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 3.7.7-r0

alpine advisories ALPINE-CVE-2022-2509

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gnutls CBL-Mariner 2.0 3.7.7-1

azure linux advisories AZL-10439

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-2509 updated cvss 7.5

gnutls: Double free during gnutls_pkcs7_verify

  • Red Hat Enterprise Linux 7 gnutls, gnutls-c++, gnutls-dane, gnutls-utils
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) gnutls-c++ 3.6.16-5.el8_6, gnutls-dane 3.6.16-5.el8_6, gnutls-utils 3.6.16-5.el8_6
    fixed: vendor fix RHSA-2022:7105
  • Red Hat Enterprise Linux AppStream (v. 9) gnutls-c++ 3.7.6-12.el9_0, gnutls-dane 3.7.6-12.el9_0, gnutls-utils 3.7.6-12.el9_0
    fixed: vendor fix RHSA-2022:6854
  • Red Hat Enterprise Linux BaseOS (v. 8) gnutls 3.6.16-5.el8_6
    fixed: vendor fix RHSA-2022:7105
  • Red Hat Enterprise Linux BaseOS (v. 9) gnutls 3.7.6-12.el9_0
    fixed: vendor fix RHSA-2022:6854
  • Red Hat Enterprise Linux 6 gnutls, gnutls-guile, gnutls-utils Red Hat Enterprise Linux AppStream (v. 9) nettle-devel 3.8-3.el9_0, nettle-debuginfo 3.8-3.el9_0, nettle-debugsource 3.8-3.el9_0 Red Hat Enterprise Linux BaseOS (v. 9) nettle 3.8-3.el9_0
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-348-10 updated cvss 7.5

Siemens SIMATIC S7-1500

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.0, < 3.1.5
    affected: fixed in V3.1.5, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
11 mo ago

Exploit prediction

2.27% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia GnuTLS_jll
<3.7.8+0
3.7.8+0

Affected products

  • n/a GnuTLS
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.