Update dependency ws to 7.4.6 [SECURITY]

[renovate[bot]]

This PR contains the following updates:

Package	Change
ws	7.4.5 -> 7.4.6

GitHub Vulnerability Alerts

CVE-2021-32640

Impact

A specially crafted value of the Sec-Websocket-Protocol header can be used to significantly slow down a ws server.

Proof of concept

for (const length of [1000, 2000, 4000, 8000, 16000, 32000]) {
  const value = 'b' + ' '.repeat(length) + 'x';
  const start = process.hrtime.bigint();

  value.trim().split(/ *, */);

  const end = process.hrtime.bigint();

  console.log('length = %d, time = %f ns', length, end - start);
}

Patches

The vulnerability was fixed in [email protected] (https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff) and backported to [email protected] (https://github.com/websockets/ws/commit/78c676d2a1acefbc05292e9f7ea0a9457704bf1b) and [email protected] (https://github.com/websockets/ws/commit/76d47c1479002022a3e4357b3c9f0e23a68d4cd2).

Workarounds

In vulnerable versions of ws, the issue can be mitigated by reducing the maximum allowed length of the request headers using the --max-http-header-size=size and/or the maxHeaderSize options.

Credits

The vulnerability was responsibly disclosed along with a fix in private by Robert McLaughlin from University of California, Santa Barbara.

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[codecov[bot]]

Codecov Report

Merging #2676 (c5ded8e) into master (90643ff) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2676   +/-   ##
=======================================
  Coverage   41.36%   41.36%           
=======================================
  Files         536      536           
  Lines       24751    24751           
  Branches     3380     3380           
=======================================
  Hits        10239    10239           
  Misses      13739    13739           
  Partials      773      773           

Flag	Coverage Δ
api-python	90.59% <ø> (ø)
catalog	13.20% <ø> (ø)
lambda	88.05% <ø> (ø)

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[renovate[bot]]

Autoclosing Skipped

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