Описание
Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.
A flaw was found in github.com/rs/cors. The middleware exhibits excessive heap memory allocation when handling preflight requests containing a lengthy, comma-separated value in the Access-Control-Request-Headers (ACRH) header. This vulnerability allows an attacker to send a specially crafted HTTP request, leading to resource exhaustion and potentially causing an application-level denial of service.
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 |
|---|---|---|---|---|
| Multicluster Engine for Kubernetes | multicluster-engine/agent-service-rhel8 | Fix deferred | ||
| Multicluster Engine for Kubernetes | multicluster-engine/assisted-image-service-rhel8 | Fix deferred | ||
| Multicluster Engine for Kubernetes | multicluster-engine/assisted-image-service-rhel9 | Fix deferred | ||
| Multicluster Engine for Kubernetes | multicluster-engine/assisted-service-8-rhel8 | Fix deferred | ||
| Multicluster Engine for Kubernetes | multicluster-engine/assisted-service-9-rhel9 | Fix deferred | ||
| Multicluster Global Hub | multicluster-globalhub/multicluster-globalhub-grafana-rhel9 | Fix deferred | ||
| OpenShift Serverless | openshift-serverless-1/kn-plugin-event-sender-rhel8 | Fix deferred | ||
| Red Hat Advanced Cluster Management for Kubernetes 2 | rhacm2/acm-grafana-rhel9 | Fix deferred | ||
| Red Hat Advanced Cluster Management for Kubernetes 2 | rhacm2/prometheus-alertmanager-rhel9 | Fix deferred | ||
| Red Hat Ceph Storage 5 | rhceph/grafana-rhel9 | Out of support scope |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.
Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.
Middleware causes a prohibitive amount of heap allocations when proces ...
Denial of service via malicious preflight requests in github.com/rs/cors
EPSS
5.3 Medium
CVSS3