upstream: fix oss-fuzz issue #11095.#6220

Merged

htuch merged 5 commits intoenvoyproxy:masterfrom

ipuustin:oss-fuzz-11095

Mar 12, 2019

Commits on Mar 8, 2019

Commits on Mar 11, 2019

If health check address is misconfigured, throw exception.
ipuustin
committed

Commits on Mar 12, 2019

Change non-null port -> non-zero port.
ipuustin
committed