HashiCorp Consul can use cleartext agent-to-agent RPC communication

Description

References

• nvd.nist.gov/vuln/detail/CVE-2018-19653 · ADVISORY
• hashicorp/consul#5069 · WEB
• hashicorp/consul commit b64e8b2 · WEB
• hashicorp/consul · PACKAGE
• groups.google.com/forum · WEB
• groups.google.com/forum
• GitHub Advisory GHSA-4qvx-qq5w-695p · ADVISORY

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