Provide references for CVE-2021-32778.
Where can I find more information about CVE-2021-32778?
References are available at: https://www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_history, https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc.