m/istio/istio/issues/15084>on GitHub</a> on June 23, 2019.</p><p>This bug affects all versions of Istio that are using the JWT authentication policy.</p><p>The symptoms of the bug are an HTTP 503 error seen by the client, and</p><pre><code class=language-plain data-expandlinks=true>Epoch 0 terminated with an error: signal: segmentation fault (core dumped)
</code></pre><p>in the Envoy logs.</p><p>The Envoy crash can be triggered using a malformed JWT without a valid signature, and on any URI being accessed r