chore(deps): update dependency ws to 7.4.6 [security] - abandoned

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This PR contains the following updates:

Package	Change
ws	7.4.0 -> 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(constlengthof[1000,2000,4000,8000,16000,32000]){constvalue='b'+' '.repeat(length)+'x';conststart=process.hrtime.bigint();value.trim().split(/*,*/);constend=process.hrtime.bigint();console.log('length = %d, time = %f ns',length,end-start);}

Patches

The vulnerability was fixed in ws@7.4.6 (websockets/ws@00c425e) and backported to ws@6.2.2 (websockets/ws@78c676d) and ws@5.2.3 (websockets/ws@76d47c1).

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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