CVE-2022-23606
Envoy is an open source edge and service proxy, designed for cloud-native applications. When a cluster is deleted via Cluster Discovery Service (CDS) all idle connections established to endpoints in that cluster are disconnected. A recursion was introduced in the procedure of disconnecting idle connections that can lead to stack exhaustion and abnormal process termination when a cluster has a large number of idle connections. This infinite recursion causes Envoy to crash. Users are advised to upgrade.
| Software | From | Fixed in |
|---|---|---|
| envoyproxy / envoy | 1.20.0 | 1.20.2 |
| envoyproxy / envoy | 1.21.0 | 1.21.0.x |
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