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    CVE-2023-41378

    In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.

    Published:Nov 6, 2023
    Last Modified:Nov 21, 2024
    EPS:Nov 6, 2023
    EPSS Score:0.00225
    CVSS Score:7.5

    Affected Products

    Vendor
    Tigera
    Product
    Calico Cloud
    Vendor
    Tigera
    Product
    Calico Enterprise
    Vendor
    Tigera
    Product
    Calico Os

    Exploits

    No exploit reference

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    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