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CVE-2025-32988

Gnutls: vulnerability in gnutls othername san export

Published: 7/10/2025 Last updated: 4/20/2026 Reserved: 4/15/2025

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.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 6.5 Medium CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Opam packages affected (5)

conf-gnutls conf-mingw-w64-gnutls-i686 conf-mingw-w64-gnutls-x86_64 conf-srt conf-srt-gnutls

Products affected (25)

Product Vendor Version
Red Hat Discovery 2 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Red Hat n/a
Red Hat Enterprise Linux 9.4 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 10 Red Hat <= V20.01
Red Hat Enterprise Linux 8 Red Hat >=13.7, <13.7.7
Red Hat Enterprise Linux 8 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Red Hat n/a
Red Hat Enterprise Linux 9.4 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 6 Red Hat n/a
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 6 Red Hat n/a
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Hardened Images Red Hat n/a
Red Hat Hardened Images Red Hat n/a
Red Hat Insights proxy 1.5 Red Hat n/a
Red Hat Insights proxy 1.5 Red Hat n/a
n/a
Red Hat Ceph Storage 7 Red Hat n/a
Red Hat Ceph Storage 7 Red Hat n/a
Red Hat OpenShift Container Platform 4 Red Hat n/a
Red Hat OpenShift Container Platform 4 Red Hat n/a

References (28)