Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 27.8%
CVSS Severity
CVSS v3 Score 4.4
CVSS v2 Score 4.0
References
- https://github.com/envoyproxy/envoy/commit/4b6dd3b53cd5c6d4d4df378a2fc62c1707522b31
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-9vp2-4cp7-vvxf
- https://github.com/envoyproxy/envoy/commit/4b6dd3b53cd5c6d4d4df378a2fc62c1707522b31
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-9vp2-4cp7-vvxf
Products affected by CVE-2022-23606
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cpe:2.3:a:envoyproxy:envoy:1.20.0
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cpe:2.3:a:envoyproxy:envoy:1.20.1
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cpe:2.3:a:envoyproxy:envoy:1.21.0