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<a href="https://gitlab.com/dueno">Daiki Ueno</a>
<a href="https://gitlab.com/gnutls/gnutls/-/issues/1429#note_1185362594">commented</a>:
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<p dir="auto" style="color: #333238; margin: 0 0 16px;" align="initial">Thanks for the report with the reproducer. I've tried it, but it seems the test is skipped:</p>
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<pre lang="console" class="code highlight js-syntax-highlight language-console" v-pre="true" style='display: block; font-size: 13px; color: #333238; line-height: 1.6em; overflow-x: auto; border-radius: 4px; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; margin: 0 0 16px; padding: 12px; border: 1px solid #dcdcde;'><code style='font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: 4px; white-space: pre; margin-top: 0; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; overflow-wrap: normal; padding: unset;'><span id="LC1" class="line" lang="console" style="margin-top: 0;"><span class="gp" style="margin-top: 0;">$</span><span class="w"> </span>./tests/ssl-opt.sh <span class="nt">-f</span> <span class="s2">"TLS 1.3 G->m: EarlyData: HRR check, enabled. good"</span></span>
<span id="LC2" class="line" lang="console"><span class="gp" style="margin-top: 0;">TLS 1.3 G-></span>m: EarlyData: HRR check, enabled. good. ..................... SKIP</span>
<span id="LC3" class="line" lang="console"><span class="go" style="margin-top: 0;">------------------------------------------------------------------------</span></span>
<span id="LC4" class="line" lang="console"><span class="go" style="margin-top: 0;">PASSED (1 / 1 tests (1 skipped))</span></span></code></pre>
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<p dir="auto" style="color: #333238; margin: 0 0 16px;" align="initial">Do you have any idea?</p>
<p dir="auto" style="color: #333238; margin: 0 0 16px;" align="initial">Anyway I think I was able to reproduce it partially with gnutls-serv/gnutls-cli:</p>
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<pre lang="console" class="code highlight js-syntax-highlight language-console" v-pre="true" style='display: block; font-size: 13px; color: #333238; line-height: 1.6em; overflow-x: auto; border-radius: 4px; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; margin: 0 0 16px; padding: 12px; border: 1px solid #dcdcde;'><code style='font-size: inherit; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: 4px; white-space: pre; margin-top: 0; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; overflow-wrap: normal; padding: unset;'><span id="LC1" class="line" lang="console" style="margin-top: 0;"><span class="gp" style="margin-top: 0;">$</span><span class="w"> </span>gnutls-serv <span class="nt">--x509certfile</span><span class="o">=</span>doc/credentials/x509/cert-rsa-pss.pem <span class="nt">--x509keyfile</span><span class="o">=</span>doc/credentials/x509/key-rsa-pss.pem <span class="nt">--earlydata</span> <span class="nt">--priority</span><span class="o">=</span>NORMAL:-GROUP-ALL:+GROUP-X448 &</span>
<span id="LC2" class="line" lang="console"><span class="gp" style="margin-top: 0;">$</span><span class="w"> </span><span class="nb">echo </span>aaa <span class="o">></span> earlydata.txt</span>
<span id="LC3" class="line" lang="console"><span class="gp" style="margin-top: 0;">$</span><span class="w"> </span><span class="nv">SSLKEYLOGFILE</span><span class="o">=</span><span class="nv">$PWD</span>/keylog.txt gnutls-cli <span class="nt">--x509cafile</span><span class="o">=</span>doc/credentials/x509/ca.pem <span class="nt">-p</span> 5556 localhost <span class="nt">--inline-commands</span> <span class="nt">--earlydata</span><span class="o">=</span>earlydata.txt</span>
<span id="LC4" class="line" lang="console"><span class="c" style="margin-top: 0;">...</span></span>
<span id="LC5" class="line" lang="console"><span class="go" style="margin-top: 0;">^resume^</span></span></code></pre>
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<p dir="auto" style="color: #333238; margin: 0;" align="initial">It seems even gnutls-serv itself cannot handle the mis-crafted ClientHello.</p>
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