Updated: 2026-02-27 02:02:02.066257
Description:
A heap-buffer-overflow (off-by-one) flaw was found in the GnuTLS software in the template parsing logic within the certtool utility. When it reads certain settings from a template file, it allows an attacker to cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and a denial-of-service (DoS) that could potentially crash the system.
| 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 |
|---|---|---|---|---|---|---|---|---|
| RHEL 7 ELS | gnutls | 3.3.29 | 8.2 | HIGH | Released | CLSA-2025:1758022425 | 2025-09-16 22:40:17 | |
| TuxCare 9.6 ESU | gnutls | 3.8.3 | 8.2 | HIGH | Released | CLSA-2025:1757949650 | 2025-09-16 00:49:12 | |
| Ubuntu 16.04 ELS | gnutls28 | 3.4.10 | 8.2 | HIGH | Released | CLSA-2025:1758915545 | 2025-09-26 23:48:10 | |
| Ubuntu 18.04 ELS | gnutls28 | 3.5.18 | 8.2 | HIGH | Released | CLSA-2025:1758915712 | 2025-09-26 23:48:09 |