Shuunen / green-app

NativeScript-Vue 2.0 Test App
https://play.google.com/store/apps/details?id=green.nsvue.app
GNU General Public License v3.0
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Update dependency ws to 7.4.6 [SECURITY] #465

Closed renovate[bot] closed 3 years ago

renovate[bot] commented 3 years ago

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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 ws@7.4.6 (https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff).

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.


Configuration

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