Описание
The curl logic that works with SASL authentication could end up cleaning up
the GSASL context twice without clearing the pointer in between, making it
free() the same pointer twice.
A flaw was found in curl. The logic handling SASL (Simple Authentication and Security Layer) authentication could lead to a double-free vulnerability. This occurs because the GSASL context may be deallocated twice without clearing the pointer, potentially leading to memory corruption. An attacker could exploit this to cause a denial of service or potentially execute arbitrary code.
Отчет
This Important flaw in curl's SASL authentication logic could lead to a double-free vulnerability, potentially resulting in memory corruption, denial of service, or arbitrary code execution. The impact is significant as curl is a widely used utility in Red Hat environments, and SASL authentication is a common enterprise configuration. Exploitation requires an attacker to interact with a service utilizing the vulnerable SASL authentication within curl. Exploitation of this flaw requires controlling which memory is addressed in the second free call and this is unlikely to be possible.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | curl | Not affected | ||
| Red Hat Enterprise Linux 6 | curl | Not affected | ||
| Red Hat Enterprise Linux 7 | curl | Not affected | ||
| Red Hat Enterprise Linux 8 | curl | Not affected | ||
| Red Hat Enterprise Linux 9 | curl | Not affected | ||
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-8 | Not affected | ||
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-9 | Not affected | ||
| Red Hat OpenShift Dev Spaces | devspaces/code-rhel9 | Not affected | ||
| Red Hat Trusted Profile Analyzer | rhtpa/rhtpa-trustification-service-rhel9 | Not affected | ||
| Red Hat Hardened Images | curl-main-8.21.0-0.1.hum1 | Fixed | RHSA-2026:29017 | 24.06.2026 |
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Дополнительная информация
Статус:
EPSS
8.1 High
CVSS3
Связанные уязвимости
The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing the pointer in between, making it `free()` the same pointer twice.
The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing the pointer in between, making it `free()` the same pointer twice.
The curl logic that works with SASL authentication could end up cleani ...
The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing the pointer in between, making it `free()` the same pointer twice.
EPSS
8.1 High
CVSS3