VULNERABILITY INTELLIGENCE

CVE-2022-23606

CVSS score4.4 MEDIUM
EPSS probability1.02%
CISA KEVNot currently listed
Published2022-02-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • security-advisories@github.com: CWE-674

Primary references