CVE-2022-23606
low-risk
Published 2022-02-22
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.
Do I need to act?
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0.10% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.4/10
Medium
NETWORK
/ HIGH complexity
Affected Vendors
References (4)
21
/ 100
low-risk
Severity
14/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
7/34 · Low