ws is an open source WebSocket client and server library for Node.js. A specially crafted value of the `Sec-Websocket-Protocol` header can be used to significantly slow down a ws server. The vulnerability has been fixed in ws@7.4.6 (https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff). 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`](https://nodejs.org/api/cli.html#cli_max_http_header_size_size) and/or the [`maxHeaderSize`](https://nodejs.org/api/http.html#http_http_createserver_options_requestlistener) options.
References
Link | Resource |
---|---|
https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff | Patch Third Party Advisory |
https://github.com/websockets/ws/security/advisories/GHSA-6fc8-4gx4-v693 | Exploit Mitigation Patch Third Party Advisory |
https://lists.apache.org/thread.html/rdfa7b6253c4d6271e31566ecd5f30b7ce1b8fb2c89d52b8c4e0f4e30%40%3Ccommits.tinkerpop.apache.org%3E | |
https://security.netapp.com/advisory/ntap-20210706-0005/ | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2021-05-25T18:25:09
Updated: 2021-07-06T07:06:26
Reserved: 2021-05-12T00:00:00
Link: CVE-2021-32640
JSON object: View
NVD Information
Status : Modified
Published: 2021-05-25T19:15:07.767
Modified: 2023-11-07T03:35:20.380
Link: CVE-2021-32640
JSON object: View
Redhat Information
No data.
CWE