CVE-2024-23672

Apache Tomcat: WebSocket DoS with incomplete closing handshake

Published: Mar 13, 2024Updated: Aug 7, 2025 Sources: CVE List NVD GHSA BDUCWE-459

6.3MEDIUM

Description

Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:LAvailability

Low

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Weaknesses

CWE-459

Affected Products

Red Hat Inc.

commercial·USaka red hat

Red Hat Enterprise LinuxOn-premOS

Operating Systems / linux-distro

Red Hat JBoss Web ServerOn-prem

Operating Systems / linux-distro

Maven

package-ecosystem

org.apache.tomcat:tomcat-websocket

OSS Libraries

org.apache.tomcat.embed:tomcat-embed-websocket

OSS Libraries

Apache Software Foundation

oss-project·USaka apache foundation

Apache TomcatOn-premWeb App

Networking Infrastructure / load-balancer-proxy

apache

oss-project·USaka apache http server, apache httpd

tomcatOn-premWeb App

Networking Infrastructure / load-balancer-proxy

debian

oss-project·GBaka debian gnu/linux

debian linuxOn-premOS

Operating Systems / linux-distro

fedoraproject

oss-project·USaka fedora project

fedoraOn-premOS

Operating Systems / linux-distro

and 9 more affected products View all →

Exploitability

Official Patch Available

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References

https://lists.apache.org/thread/cmpswfx6tj4s7x0nxxosvfqs11lvdx2f

lists.apache.org

http://www.openwall.com/lists/oss-security/2024/03/13/4

openwall.com

https://lists.debian.org/debian-lts-announce/2024/04/msg00001.html

lists.debian.org

and 20 more references View all →

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