Updated: 2026-02-27 01:41:10.646702
Description:
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.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 8.2 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | gnutls | 3.7.6 | 8.2 | HIGH | Released | CLSA-2025:1759247437 | 2025-09-30 16:30:09 | |
| Alpine Linux 3.18 ELS | gnutls | 3.8.4 | 8.2 | HIGH | Released | CLSA-2026:1767609331 | 2026-01-05 21:10:18 | |
| CentOS 6 ELS | gnutls | 2.12.23 | 8.2 | HIGH | Not Vulnerable | 2025-09-03 20:34:33 | Not vulnerable. CVE-2025-32988 targets the _gnutls_write_new_othername path used when exporting SAN ... | |
| CentOS 7 ELS | gnutls | 3.3.29 | 8.2 | HIGH | Not Vulnerable | 2025-09-03 20:34:30 | Not vulnerable: CVE-2025-32988 affects the otherName SAN export path implemented by the internal hel... | |
| CentOS 8.4 ELS | gnutls | 3.6.14 | 8.2 | HIGH | Released | CLSA-2025:1756759707 | 2025-09-02 00:51:48 | |
| CentOS 8.5 ELS | gnutls | 3.6.16 | 8.2 | HIGH | Released | CLSA-2025:1756760036 | 2025-09-02 00:51:46 | |
| CentOS Stream 8 ELS | gnutls | 3.6.16 | 8.2 | HIGH | Released | CLSA-2025:1756751437 | 2025-09-01 19:39:37 | |
| CloudLinux 6 ELS | gnutls | 2.12.23 | 8.2 | HIGH | Ignored | 2025-08-29 10:39:01 | ||
| CloudLinux 7 ELS | gnutls | 3.3.29 | 8.2 | HIGH | Not Vulnerable | 2025-09-03 20:34:31 | Not vulnerable: CVE-2025-32988 affects the otherName SAN export path implemented by the internal hel... | |
| Oracle Linux 6 ELS | gnutls | 2.12.23 | 8.2 | HIGH | Not Vulnerable | 2025-09-03 20:34:31 | Not vulnerable. CVE-2025-32988 targets the _gnutls_write_new_othername path used when exporting SAN ... |