- buffer: fixed CVE-2020-12603 by avoiding fragmentation, and tracking of HTTP/2 data and control frames in the output buffer.
- http: fixed CVE-2020-12604 by changing :ref:`stream_idle_timeout <v1.14:envoy_api_field_config.filter.network.http_connection_manager.v2.HttpConnectionManager.stream_idle_timeout>` to also defend against an HTTP/2 peer that does not open stream window once an entire response has been buffered to be sent to a downstream client.
- http: fixed CVE-2020-12605 by including request URL in request header size computation, and rejecting partial headers that exceed configured limits.
- listener: fixed CVE-2020-8663 by adding runtime support for :ref:`per-listener limits <v1.14:config_listeners_runtime>` on active/accepted connections.
- overload management: fixed CVE-2020-8663 by adding runtime support for :ref:`global limits <v1.14:config_overload_manager>` on active/accepted connections.
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