NULL pointer dereference in GnuTLS - CVE-2025-32990

Vulnerability identifier: #VU112994

CSH Severity: Low

CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-32990

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when the certtool program is invoked with a template file with a number of string pairs for a single keyword. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

GnuTLS
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
Debian Linux
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 15 SP3
Gentoo Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Enterprise Storage
Red Hat Enterprise Linux for Power, little endian
Anolis OS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Basesystem Module
openSUSE Leap
Ubuntu
openEuler
Fedora
Netezza Appliance
Storage Defender - Resiliency Service
Financial Transaction Manager for RedHat OpenShift
Oracle Communications Policy Management
Robotic Process Automation for Cloud Pak
IBM Observability with Instana
Cryostat
Oracle Communications Unified Inventory Management
Oracle Communications Network Analytics Data Director
Red Hat Advanced Cluster Management for Kubernetes
Splunk Operator for Kubernetes Add-on
App Connect Enterprise Certified Container
LANTIME Operating System Firmware (LTOS)
IBM Qradar SIEM
Juniper Secure Analytics (JSA)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
gnutls-debuginfo
libgnutls28
gnutls-debugsource
libgnutls-openssl27-debuginfo
libgnutls-openssl-devel
libgnutls-openssl27
libgnutls28-debuginfo-32bit
libgnutlsxx-devel
libgnutls28-debuginfo
libgnutls-devel
libgnutls28-32bit
gnutls
gnutls28 (Ubuntu package)
libgnutls30-32bit
libgnutls30-debuginfo
libgnutls30-debuginfo-32bit
libgnutls30
libgnutls30-32bit-debuginfo
libgnutls30-hmac-32bit
libgnutls-devel-32bit
libgnutls30-hmac
libgnutlsxx28
libgnutlsxx28-debuginfo
gnutls-utils
gnutls-help
gnutls-devel
gnutls (Red Hat package)
gnutls-dane
gnutls-c++
libgnutls30-64bit-debuginfo
gnutls-guile-debuginfo
gnutls-guile
libgnutls30-hmac-64bit
libgnutls-devel-64bit
libgnutls30-64bit
gnutls28 (Debian package)
gnutls-doc
libgnutlsxx30
libgnutlsxx30-debuginfo
net-libs/gnutls
Oracle Communications Cloud Native Core Security Edge Protection Proxy
Oracle Communications Cloud Native Core Service Communication Proxy
Red Hat OpenShift Serverless
Multicluster Engine for Kubernetes
OpenShift Virtualization
AMQ Broker
IBM CICS TX Standard

Install updates from vendor's website.

GnuTLS - update to 3.8.10
Netezza Appliance - update to 1.0.0.1
IBM Observability with Instana - update to 1.0.308
Storage Defender - Resiliency Service - update to 2.0.18
Cryostat - update to 4.0.3
LANTIME Operating System Firmware (LTOS) - update to 7.08.025
IBM Qradar SIEM - update to 7.5.0 Update Pack 14 IF01
Juniper Secure Analytics (JSA) - update to 7.5.0 UP14 IF01
Robotic Process Automation for Cloud Pak - addressed in versions 23.0.20.5, 30.0.1
Red Hat OpenShift Serverless - update to 1
Multicluster Engine for Kubernetes - update to 2.7.6
Red Hat Advanced Cluster Management for Kubernetes - update to 2.12.5
Splunk Operator for Kubernetes Add-on - update to 3.1.0
gnutls-debuginfo - addressed in versions 3.3.27-3.12.1, 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls28 - update to 3.3.27-3.12.1
gnutls-debugsource - addressed in versions 3.3.27-3.12.1, 3.4.17-8.20.1, 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls-openssl27-debuginfo - update to 3.3.27-3.12.1
libgnutls-openssl-devel - update to 3.3.27-3.12.1
libgnutls-openssl27 - update to 3.3.27-3.12.1
libgnutls28-debuginfo-32bit - update to 3.3.27-3.12.1
libgnutlsxx-devel - addressed in versions 3.3.27-3.12.1, 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls28-debuginfo - update to 3.3.27-3.12.1
libgnutls-devel - addressed in versions 3.3.27-3.12.1, 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls28-32bit - update to 3.3.27-3.12.1
gnutls - addressed in versions 3.3.27-3.12.1, 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
gnutls28 (Ubuntu package) - addressed in versions 3.4.10-4ubuntu1.9+esm2, 3.5.18-1ubuntu1.6+esm2, 3.6.13-2ubuntu1.12+esm1, 3.7.3-4ubuntu1.7, 3.8.3-1.1ubuntu3.4, 3.8.9-2ubuntu3.1
libgnutls30-32bit - addressed in versions 3.4.17-8.20.1, 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls30-debuginfo - addressed in versions 3.4.17-8.20.1, 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls30-debuginfo-32bit - update to 3.4.17-8.20.1
libgnutls30 - addressed in versions 3.4.17-8.20.1, 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls30-32bit-debuginfo - addressed in versions 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls30-hmac-32bit - addressed in versions 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1
libgnutls-devel-32bit - addressed in versions 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls30-hmac - addressed in versions 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1
libgnutlsxx28 - addressed in versions 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1
libgnutlsxx28-debuginfo - addressed in versions 3.6.7-150200.14.37.1, 3.7.3-150400.4.50.1
gnutls-utils - addressed in versions 3.6.14-18, 3.7.2-16, 3.7.2-17, 3.8.2-7
gnutls-help - addressed in versions 3.6.14-18, 3.7.2-16, 3.7.2-17, 3.8.2-7
gnutls-devel - addressed in versions 3.6.14-18, 3.7.2-16, 3.7.2-17, 3.8.2-7
gnutls-debugsource - addressed in versions 3.6.14-18, 3.7.2-16, 3.7.2-17, 3.8.2-7
gnutls-debuginfo - addressed in versions 3.6.14-18, 3.7.2-16, 3.7.2-17, 3.8.2-7
gnutls - addressed in versions 3.6.14-18, 3.7.2-16, 3.7.2-17, 3.8.2-7
gnutls (Red Hat package) - addressed in versions 3.6.16-8.el8_10.4, 3.7.6-21.el9_2.4, 3.8.3-4.el9_4.4, 3.8.3-6.el9_6.2, 3.8.9-9.el10_0.14
gnutls-dane - addressed in versions 3.6.16-8.0.2, 3.8.2-4
gnutls-devel - addressed in versions 3.6.16-8.0.2, 3.8.2-4
gnutls-utils - addressed in versions 3.6.16-8.0.2, 3.8.2-4
gnutls-c++ - addressed in versions 3.6.16-8.0.2, 3.8.2-4
gnutls - addressed in versions 3.6.16-8.0.2, 3.8.2-4
libgnutls30-64bit-debuginfo - addressed in versions 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
gnutls-guile-debuginfo - update to 3.7.3-150400.4.50.1
gnutls-guile - update to 3.7.3-150400.4.50.1
libgnutls30-hmac-64bit - update to 3.7.3-150400.4.50.1
libgnutls-devel-64bit - addressed in versions 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
libgnutls30-64bit - addressed in versions 3.7.3-150400.4.50.1, 3.8.3-150600.4.9.1
gnutls28 (Debian package) - update to 3.7.9-2+deb12u5
gnutls-doc - update to 3.8.2-4
gnutls-dane - update to 3.8.2-7
libgnutlsxx30 - update to 3.8.3-150600.4.9.1
libgnutlsxx30-debuginfo - update to 3.8.3-150600.4.9.1
net-libs/gnutls - update to 3.8.10
gnutls - addressed in versions 3.8.10-1.fc41, 3.8.10-1.fc42
OpenShift Virtualization - update to 4.19.17
AMQ Broker - update to 7.13.2
IBM CICS TX Standard - update to 11.1.0.0 ifix41
App Connect Enterprise Certified Container - update to 12.0.17

• https://bugzilla.redhat.com/show_bug.cgi?id=2359620
• https://gitlab.com/gnutls/gnutls/-/issues/1696
• https://www.gnutls.org/security-new.html#GNUTLS-SA-2025-07-08-3

• Multiple vulnerabilities in GnuTLS
• Fedora 41 update for gnutls
• Fedora 42 update for gnutls
• Ubuntu update for gnutls28
• Debian update for gnutls28
• SUSE update for gnutls
• SUSE update for gnutls
• SUSE update for gnutls
• SUSE update for gnutls
• SUSE update for gnutls
• openEuler 24.03 LTS SP2 update for gnutls
• openEuler 24.03 LTS SP2 update for gnutls
• openEuler 24.03 LTS SP1 update for gnutls
• openEuler 24.03 LTS update for gnutls
• openEuler 24.03 LTS SP1 update for gnutls
• openEuler 24.03 LTS SP2 update for gnutls
• openEuler 24.03 LTS SP2 update for gnutls
• openEuler 24.03 LTS SP2 update for gnutls
• openEuler 22.03 LTS SP4 update for gnutls
• openEuler 24.03 LTS SP1 update for gnutls
• openEuler 22.03 LTS SP3 update for gnutls
• openEuler 24.03 LTS update for gnutls
• openEuler 24.03 LTS SP2 update for gnutls
• openEuler 22.03 LTS SP4 update for gnutls
• openEuler 24.03 LTS SP1 update for gnutls
• openEuler 24.03 LTS update for gnutls
• openEuler 24.03 LTS update for gnutls
• openEuler 22.03 LTS SP4 update for gnutls
• openEuler 24.03 LTS SP1 update for gnutls
• openEuler 24.03 LTS SP1 update for gnutls
• openEuler 22.03 LTS SP3 update for gnutls
• openEuler 24.03 LTS update for gnutls
• openEuler 22.03 LTS SP4 update for gnutls
• openEuler 22.03 LTS SP3 update for gnutls
• openEuler 24.03 LTS update for gnutls
• openEuler 22.03 LTS SP3 update for gnutls
• openEuler 22.03 LTS SP4 update for gnutls
• openEuler 22.03 LTS SP4 update for gnutls
• openEuler 22.03 LTS SP3 update for gnutls
• openEuler 24.03 LTS SP2 update for gnutls
• openEuler 22.03 LTS SP3 update for gnutls
• openEuler 24.03 LTS SP1 update for gnutls
• openEuler 24.03 LTS SP2 update for gnutls
• openEuler 24.03 LTS update for gnutls
• openEuler 22.03 LTS SP4 update for gnutls
• openEuler 24.03 LTS SP1 update for gnutls
• openEuler 22.03 LTS SP3 update for gnutls
• openEuler 24.03 LTS update for gnutls
• openEuler 22.03 LTS SP4 update for gnutls
• openEuler 22.03 LTS SP3 update for gnutls
• openEuler 20.03 LTS SP4 update for gnutls
• Multiple vulnerabilities in Meinberg LANTIME firmware
• Ubuntu update for gnutls28
• Red Hat Enterprise Linux 10 update for gnutls
• Gentoo update for GnuTLS
• Red Hat Enterprise Linux 9 update for gnutls
• Red Hat Enterprise Linux 9 update for gnutls
• Red Hat Enterprise Linux 8 update for gnutls
• Multiple vulnerabilities in AMQ Broker 7.13
• Anolis OS update for gnutls
• Red Hat Enterprise Linux 9 update for gnutls
• Multiple vulnerabilities in IBM Financial Transaction Manager (FTM) for RedHat OpenShift
• Multiple vulnerabilities in Oracle Communications Unified Inventory Management
• Multiple vulnerabilities in Multicluster Engine for Kubernetes 2.7
• Multiple vulnerabilities in Red Hat Advanced Cluster Management for Kubernetes 2.12
• Multiple vulnerabilities in Red Hat build of Cryostat 4.0
• Multiple vulnerabilities in IBM Storage Defender - Resiliency Service
• Multiple vulnerabilities in IBM App Connect Enterprise Certified Containers Operands
• Multiple vulnerabilities in IBM QRadar SIEM
• Multiple vulnerabilities in IBM Observability with Instana
• Multiple vulnerabilities in IBM Netezza Appliance
• Multiple vulnerabilities in IBM Robotic Process Automation for Cloud Pak
• Multiple vulnerabilities in Oracle Communications Policy Management
• Multiple vulnerabilities in Oracle Communications Network Analytics Data Director
• Multiple vulnerabilities in Red Hat OpenShift Serverless
• Multiple vulnerabilities in OpenShift Virtualization 4.19
• Juniper Secure Analytics update for third-party components
• Anolis OS update for gnutls
• Splunk Operator for Kubernetes Add-on update for third-party components
• Multiple vulnerabilities in Oracle Communications Cloud Native Core Security Edge Protection Proxy
• Multiple vulnerabilities in Oracle Communications Cloud Native Core Service Communication Proxy
• Multiple vulnerabilities in IBM CICS TX Standard