Executive Summary

Informations
Name CVE-2021-32640 First vendor Publication 2021-05-25
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 1.4 Temporal Score 5.3
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32640

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1

Sources (Detail)

https://lists.apache.org/thread.html/rdfa7b6253c4d6271e31566ecd5f30b7ce1b8fb2...
Source Url
CONFIRM https://github.com/websockets/ws/security/advisories/GHSA-6fc8-4gx4-v693
https://security.netapp.com/advisory/ntap-20210706-0005/
MISC https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff

Alert History

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Date Informations
2023-11-07 21:34:52
  • Multiple Updates
2022-06-04 09:27:16
  • Multiple Updates
2021-08-05 01:43:03
  • Multiple Updates
2021-07-06 13:22:59
  • Multiple Updates
2021-07-01 21:23:15
  • Multiple Updates
2021-06-02 21:23:10
  • Multiple Updates
2021-05-29 01:39:53
  • Multiple Updates
2021-05-29 01:39:49
  • Multiple Updates
2021-05-28 21:23:09
  • Multiple Updates
2021-05-26 00:22:47
  • First insertion