In vulnerable versions of ws, the issue can be mitigated in the following ways:
Reduce the maximum allowed length of the request headers using the --max-http-header-size=size and/or the maxHeaderSize options so that no more headers than the server.maxHeadersCount limit can be sent.
Set server.maxHeadersCount to 0 so that no limit is applied.
This PR contains the following updates:
7.5.9
->7.5.10
GitHub Vulnerability Alerts
CVE-2024-37890
Impact
A request with a number of headers exceeding the
server.maxHeadersCount
threshold could be used to crash a ws server.Proof of concept
Patches
The vulnerability was fixed in ws@8.17.1 (https://github.com/websockets/ws/commit/e55e5106f10fcbaac37cfa89759e4cc0d073a52c) and backported to ws@7.5.10 (https://github.com/websockets/ws/commit/22c28763234aa75a7e1b76f5c01c181260d7917f), ws@6.2.3 (https://github.com/websockets/ws/commit/eeb76d313e2a00dd5247ca3597bba7877d064a63), and ws@5.2.4 (https://github.com/websockets/ws/commit/4abd8f6de4b0b65ef80b3ff081989479ed93377e)
Workarounds
In vulnerable versions of ws, the issue can be mitigated in the following ways:
--max-http-header-size=size
and/or themaxHeaderSize
options so that no more headers than theserver.maxHeadersCount
limit can be sent.server.maxHeadersCount
to0
so that no limit is applied.Credits
The vulnerability was reported by Ryan LaPointe in https://github.com/websockets/ws/issues/2230.
References
Release Notes
websockets/ws (ws)
### [`v7.5.10`](https://togithub.com/websockets/ws/releases/tag/7.5.10) [Compare Source](https://togithub.com/websockets/ws/compare/7.5.9...7.5.10) ### Bug fixes - Backported [`e55e510`](https://togithub.com/websockets/ws/commit/e55e5106) to the 7.x release line ([`22c2876`](https://togithub.com/websockets/ws/commit/22c28763)).Configuration
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