Provide references for CVE-2021-28683.
Where can I find more information about CVE-2021-28683?
References are available at: https://github.com/envoyproxy/envoy/releases, https://blog.envoyproxy.io, https://github.com/envoyproxy/envoy/security/advisories/GHSA-r22g-5f3x-xjgg.