Ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing.
You are at most risk if you have an Istio ingress Gateway exposed to external traffic.
1.12.8, 1.13.5, 1.14.1
No.
More details can be found in the Istio Security Bulletin
If you have any questions or comments about this advisory, please email us at istio-security-vulnerability-reports@googlegroups.com