Provide references for CVE-2021-32777.
Where can I find more information about CVE-2021-32777?
References are available at: https://github.com/envoyproxy/envoy/security/advisories/GHSA-6g4j-5vrw-2m8h, https://www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_history.