CVE-2022-23606

MEDIUM

Envoy 1.20.0-1.20.1 - Denial of Service via Cluster Deletion Recursion

Title source: llm
STIX 2.1

Description

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.

References (2)

Core 2

Scores

CVSS v3 4.4
EPSS 0.0098
EPSS Percentile 57.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-674
Status published
Products (2)
envoyproxy/envoy 1.21.0
envoyproxy/envoy 1.20.0 - 1.20.2
Published Feb 22, 2022
Tracked Since Feb 18, 2026