CVE-2025-32988 MEDIUM

CVE-2025-32988: Gnutls: vulnerability in gnutls othername san export

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-415
Published July 10, 2025
Last update May 12, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 10, 2025 CVE published
May 12, 2026 Record updated