CVE-2025-32988: medium-severity vulnerability in libgnutls
Gnutls: vulnerability in gnutls othername san export
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 1.5%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Affected products
libgnutlsRed Hat · Red Hat Ceph Storage 7Red Hat · Red Hat Discovery 2Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat · Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat · Red Hat Hardened ImagesRed Hat · Red Hat Insights proxy 1.5Red Hat · Red Hat OpenShift Container Platform 4Related CVEs — libgnutls
In the same product, most dangerous first.
CVE-2024-6387HIGHOpenssh: regresshion - race condition in ssh allows rce/dosEPSS 99.5%CVE-2023-52356HIGHLibtiff: segment fault in libtiff in tiffreadrgbatileext() leading to denial of serviceEPSS 2.5%CVE-2026-33845HIGHGnutls: gnutls: denial of service via dtls zero-length fragmentEPSS 2.1%CVE-2023-52355HIGHLibtiff: tiffrasterscanlinesize64 produce too-big size and could cause oomEPSS 1.8%CVE-2024-12086MEDIUMRsync: rsync server leaks arbitrary client filesEPSS 1.8%CVE-2025-49796CRITICALLibxml: type confusion leads to denial of service (dos)EPSS 1.6%
References
https://access.redhat.com/errata/RHSA-2025:16115https://access.redhat.com/errata/RHSA-2025:16116https://access.redhat.com/errata/RHSA-2025:17181https://access.redhat.com/errata/RHSA-2025:17348https://access.redhat.com/errata/RHSA-2025:17361https://access.redhat.com/errata/RHSA-2025:17415https://access.redhat.com/errata/RHSA-2025:19088https://access.redhat.com/errata/RHSA-2025:22529https://access.redhat.com/errata/RHSA-2026:7477https://access.redhat.com/security/cve/CVE-2025-32988https://bugzilla.redhat.com/show_bug.cgi?id=2359622https://cert-portal.siemens.com/productcert/html/ssa-082556.html