CVE-2025-32990

Gnutls: vulnerability in gnutls certtool template parsing

publishedCWE-122

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.

Technical severity6.5 mediumCVSS 3.1 · CNA: redhat

Published2025-07-10Source updated 2026-11-05

Collected2026-11-052 attributed sources

Fixes and workarounds

Workaround

Currently, no mitigation is available for this vulnerability.

Source: CNA: redhat

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
`libgnutls` https://www.gnutls.org/	≥ 0; < 3.8.10 (affected, semver) Other versions: unaffected	CNA: redhat
Red Hat Enterprise Linux 10 Red Hat `gnutls` https://access.redhat.com/downloads/content/package-browser/	≥ 0:3.8.9-9.el10_0.14; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 8 Red Hat `gnutls` https://access.redhat.com/downloads/content/package-browser/	≥ 0:3.6.16-8.el8_10.4; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 9 Red Hat `gnutls` https://access.redhat.com/downloads/content/package-browser/	≥ 0:3.8.3-6.el9_6.2; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Red Hat `gnutls` https://access.redhat.com/downloads/content/package-browser/	≥ 0:3.7.6-21.el9_2.4; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 9.4 Extended Update Support Red Hat `gnutls` https://access.redhat.com/downloads/content/package-browser/	≥ 0:3.8.3-4.el9_4.4; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Ceph Storage 7 Red Hat `rhceph/rhceph-7-rhel9` https://catalog.redhat.com/software/containers/	≥ 7; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Discovery 2 Red Hat `discovery/discovery-ui-rhel9` https://catalog.redhat.com/software/containers/	≥ 2.3.0-1760554384; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Hardened Images Red Hat `gnutls-main` https://catalog.redhat.com/software/containers/	≥ 3.8.12-1.1.hum1; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Insights proxy 1.5 Red Hat `insights-proxy/insights-proxy-container-rhel9` https://catalog.redhat.com/software/containers/	≥ 1.5.7-1759331989; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat Enterprise Linux 6 Red Hat `gnutls` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unknown	CNA: redhat
Red Hat Enterprise Linux 7 Red Hat `gnutls` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unknown	CNA: redhat
Red Hat OpenShift Container Platform 4 Red Hat `openshift/ose-rhel-coreos-8` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
Red Hat OpenShift Container Platform 4 Red Hat `openshift/ose-rhel-coreos-9` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 6.5 medium	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L`	CNA: redhat

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://access.redhat.com/errata/RHSA-2025:16115CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:16116CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17181CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17348CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17361CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:17415CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:19088CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:22529CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:7477CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2025-32990CNA: redhat · vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2359620CNA: redhat · issue-tracking, x_refsource_REDHAT
https://lists.gnupg.org/pipermail/gnutls-help/2025-July/004883.htmlCNA: redhat
https://lists.debian.org/debian-lts-announce/2025/08/msg00005.htmlADP: CVE
http://www.openwall.com/lists/oss-security/2025/07/11/3ADP: CVE

For agents and automation

Read public disclosures for free as Markdown or JSON. Compatible browsers also expose native WebMCP tools to search disclosures, read this page, and discover API access.

Use the ontology-linked Cyber API with x402 pay per request, or a Y2 Pro or Elite API key with the intel:cyber scope.

Get an API key Use x402 Connect an agent

Endpoints and access details

https://api.y2.dev/api/v2/cyber/cves
https://api.y2.dev/api/v2/cyber/cves/{cveId}

A workspace owner or admin can create a Pro or Elite API key. Send Authorization: Bearer <Y2_API_KEY> from your trusted agent runtime.

For x402, omit Authorization and read the HTTP 402 payment challenge before signing a retry. Public browser tools do not make payments.

Agent access JSON · OpenAPI · CVE API guide