Описание
By default, curl automatically responds to WebSocket PING frames. Because curl
lacks an upper bound on memory allocation for unacknowledged frames, a
malicious server can exhaust all available memory by flooding curl with rapid,
sequential PING messages.
A flaw was found in curl. A malicious server can exploit this vulnerability by sending rapid, sequential WebSocket PING messages. Due to a lack of an upper bound on memory allocation for unacknowledged frames, curl can be forced to exhaust all available memory, leading to a denial of service.
Отчет
This Important denial of service vulnerability in curl allows a remote malicious server to exhaust system memory. By default, curl automatically responds to WebSocket PING frames without an upper bound on memory allocation, enabling an attacker to trigger resource exhaustion and cause service unavailability in affected Red Hat products.
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 | Out of support scope | ||
| Red Hat Enterprise Linux 7 | curl | Out of support scope | ||
| 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:
7.5 High
CVSS3
Связанные уязвимости
By default, curl automatically responds to WebSocket PING frames. Because curl lacks an upper bound on memory allocation for unacknowledged frames, a malicious server can exhaust all available memory by flooding curl with rapid, sequential PING messages.
By default, curl automatically responds to WebSocket PING frames. Because curl lacks an upper bound on memory allocation for unacknowledged frames, a malicious server can exhaust all available memory by flooding curl with rapid, sequential PING messages.
By default, curl automatically responds to WebSocket PING frames. Beca ...
By default, curl automatically responds to WebSocket PING frames. Because curl lacks an upper bound on memory allocation for unacknowledged frames, a malicious server can exhaust all available memory by flooding curl with rapid, sequential PING messages.
7.5 High
CVSS3