Open renovate[bot] opened 2 years ago
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This PR contains the following updates:
6.2.1
->6.2.2
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
Patches
The vulnerability was fixed in ws@7.4.6 (https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff) and backported to ws@6.2.2 (https://github.com/websockets/ws/commit/78c676d2a1acefbc05292e9f7ea0a9457704bf1b) and ws@5.2.3 (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 themaxHeaderSize
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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