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Vulnerability · Published Jul 10, 2025 · Assigned by redhat

CVE-2025-32990Gnutls: vulnerability in gnutls certtool template parsing

Medium 6.5

In plain English

A medium-severity heap buffer overflow in libgnutls. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.9%top 40.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A heap-buffer-overflow (off-by-one) flaw was found in the GnuTLS software in the template parsing logic within the certtool utility. When it reads certain settings from a template file, it allows an attacker to cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and a denial-of-service (DoS) that could potentially crash the system.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10gnutls3.8.9-9.el10_0.14ALSA-2025:16115
AlmaLinux:8gnutls3.6.16-8.el8_10.4ALSA-2025:17415
AlmaLinux:9gnutls3.8.3-6.el9_6.2ALSA-2025:16116
AlmaLinux:10gnutls-c++3.8.9-9.el10_0.14ALSA-2025:16115
AlmaLinux:8gnutls-c++3.6.16-8.el8_10.4ALSA-2025:17415
AlmaLinux:9gnutls-c++3.8.3-6.el9_6.2ALSA-2025:16116
AlmaLinux:10gnutls-dane3.8.9-9.el10_0.14ALSA-2025:16115
AlmaLinux:8gnutls-dane3.6.16-8.el8_10.4ALSA-2025:17415
AlmaLinux:9gnutls-dane3.8.3-6.el9_6.2ALSA-2025:16116
AlmaLinux:10gnutls-devel3.8.9-9.el10_0.14ALSA-2025:16115
AlmaLinux:8gnutls-devel3.6.16-8.el8_10.4ALSA-2025:17415
AlmaLinux:9gnutls-devel3.8.3-6.el9_6.2ALSA-2025:16116
AlmaLinux:10gnutls-fips3.8.9-9.el10_0.14ALSA-2025:16115
AlmaLinux:10gnutls-utils3.8.9-9.el10_0.14ALSA-2025:16115
AlmaLinux:8gnutls-utils3.6.16-8.el8_10.4ALSA-2025:17415
AlmaLinux:9gnutls-utils3.8.3-6.el9_6.2ALSA-2025:16116
Alpine:v3.20gnutls3.8.12-r0ALPINE-CVE-2025-32990
Alpine:v3.21gnutls3.8.12-r0ALPINE-CVE-2025-32990
Alpine:v3.22gnutls3.8.12-r0ALPINE-CVE-2025-32990
Alpine:v3.23gnutls3.8.11-r0ALPINE-CVE-2025-32990
Alpine:v3.24gnutls3.8.11-r0ALPINE-CVE-2025-32990
Debian:12gnutls283.7.9-2+deb12u5DEBIAN-CVE-2025-32990
Debian:12gnutls283.7.9-2+deb12u5DSA-5962-1
Debian:13gnutls283.8.9-3DEBIAN-CVE-2025-32990
Debian:14gnutls283.8.9-3DEBIAN-CVE-2025-32990
Rocky Linux:10gnutls0:3.8.9-9.el10_0.14RLSA-2025:16115
Rocky Linux:8gnutls0:3.6.16-8.el8_10.4RLSA-2025:17415
Rocky Linux:9gnutls0:3.8.3-6.el9_6.2RLSA-2025:16116
Ubuntu:22.04:LTSgnutls283.7.3-4ubuntu1.7USN-7635-1
Ubuntu:22.04:LTSgnutls283.7.3-4ubuntu1.7UBUNTU-CVE-2025-32990
Ubuntu:24.04:LTSgnutls283.8.3-1.1ubuntu3.4USN-7635-1
Ubuntu:24.04:LTSgnutls283.8.3-1.1ubuntu3.4UBUNTU-CVE-2025-32990
Ubuntu:25.10gnutls283.8.9-3ubuntu1UBUNTU-CVE-2025-32990

Affected products (as reported)

VendorProductVersions
libgnutls 0 – before 3.8.10
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support see references
Red Hat Red Hat Ceph Storage 7 see references
Red Hat Red Hat Discovery 2 see references
Red Hat Red Hat Hardened Images see references
Red Hat Red Hat Insights proxy 1.5 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references

Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

References