Описание
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.
Отчет
This vulnerability is rated as a moderate severity because a heap-buffer-overflow (off-by-one) flaw was found exclusively in the certtool utility's template parsing logic (part of the gnutls-utils package), and does not affect the core gnutls library itself. This issue is triggered when the tool processes specially crafted settings from a template file, leading to an out-of-bounds NULL pointer write. The resulting memory corruption causes a denial-of-service by crashing the application.
Меры по смягчению последствий
Currently, no mitigation is available for this vulnerability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | gnutls | Out of support scope | ||
| Red Hat Enterprise Linux 7 | gnutls | Out of support scope | ||
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-8 | Fix deferred | ||
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-9 | Fix deferred | ||
| Red Hat Enterprise Linux 10 | gnutls | Fixed | RHSA-2025:16115 | 17.09.2025 |
| Red Hat Enterprise Linux 8 | gnutls | Fixed | RHSA-2025:17415 | 07.10.2025 |
| Red Hat Enterprise Linux 8 | gnutls | Fixed | RHSA-2025:17415 | 07.10.2025 |
| Red Hat Enterprise Linux 9 | gnutls | Fixed | RHSA-2025:16116 | 17.09.2025 |
| Red Hat Enterprise Linux 9 | gnutls | Fixed | RHSA-2025:16116 | 17.09.2025 |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | gnutls | Fixed | RHSA-2025:17361 | 06.10.2025 |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
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.
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.
Gnutls: vulnerability in gnutls certtool template parsing
A heap-buffer-overflow (off-by-one) flaw was found in the GnuTLS softw ...
EPSS
6.5 Medium
CVSS3