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    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.

    Published:Feb 22, 2022
    Last Modified:Apr 23, 2025
    EPS:Feb 22, 2022
    EPSS Score:0.00099
    CVSS Score:4.4

    Affected Products

    Vendor
    Envoyproxy
    Product
    Envoy
    Vendor
    Redhat
    Product
    Service Mesh

    Exploits

    No exploit reference

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High