---
id: CVE-2025-32988
title: A flaw was found in GnuTLS
summary: >-
  A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due
  to incorrect ownership handling in the export logic of Subject Alternative
  Name (SAN) entries containing an otherName. If the type-id OID is invalid or
  malforme…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H'
cwe:
  - CWE-415
vendor: gnu
product: gnutls
affected:
  - gnutls < 3.8.10
  - openshift_container_platform = 4.0
  - enterprise_linux = 6.0
  - enterprise_linux = 7.0
  - enterprise_linux = 8.0
  - enterprise_linux = 9.0
  - enterprise_linux = 10.0
patched:
  - gnutls 3.8.10
published: '2025-07-10'
updated: '2026-06-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-32988'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2025:16115'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:16116'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:17181'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:17348'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:17361'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:17415'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:19088'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2025:22529'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:7477'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2025-32988'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2359622'
    label: secalert@redhat.com
  - url: 'https://lists.gnupg.org/pipermail/gnutls-help/2025-July/004883.html'
    label: secalert@redhat.com
  - url: 'http://www.openwall.com/lists/oss-security/2025/07/11/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2025/08/msg00005.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-082556.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
epss: 0.01294
epssPercentile: 0.69088
ingestedAt: '2026-06-29T13:24:34.387Z'
---

## Overview

A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject Alternative Name (SAN) entries containing an otherName. If the type-id OID is invalid or malformed, GnuTLS will call asn1_delete_structure() on an ASN.1 node it does not own, leading to a double-free condition when the parent function or caller later attempts to free the same structure.

This vulnerability can be triggered using only public GnuTLS APIs and may result in denial of service or memory corruption, depending on allocator behavior.

## Affected

- `gnutls < 3.8.10`
- `openshift_container_platform = 4.0`
- `enterprise_linux = 6.0`
- `enterprise_linux = 7.0`
- `enterprise_linux = 8.0`
- `enterprise_linux = 9.0`
- `enterprise_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `gnutls 3.8.10`