Affected: Bitnami: envoy

Envoy is an open source edge and service proxy, designed for cloud-native applications. Sending a locally generated response must stop further processing of request or response data. Envoy tracks the amount of buffered request and response data and aborts the request if the amount of buffered data is over the limit by sending 413 or 500 responses. However when the buffer overflows while response is processed by the filter chain the operation may not be aborted correctly and result in accessing a freed memory block. If this happens Envoy will crash resulting in a denial of service.

Envoy is an open source edge and service proxy, designed for cloud-native applications. Sending a locally generated response must stop further processing of request or response data. Envoy tracks the amount of buffered request and response data and aborts the request if the amount of buffered data is over the limit by sending 413 or 500 responses. However when the buffer overflows while response is processed by the filter chain the operation may not be aborted correctly and result in accessing a freed memory block. If this happens Envoy will crash resulting in a denial of service.

envoy: Null pointer dereference when using JWT filter safe_regex match envoy: Use-after-free when response filters increase response data envoy: Use-after-free when tunneling TCP over HTTP envoy: Incorrect configuration handling allows mTLS session re-use without re-validation envoy: Incorrect handling of internal redirects to routes with a direct response entry envoy: Stack exhaustion when a cluster is deleted via Cluster Discovery Service istio: unauthenticated control plane denial of service attack istio: Unauthenticated control plane denial of service attack due to stack exhaustion

Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial-of-Service-Zustand zu verursachen und Sicherheitsmaßnahmen zu umgehen.