medium
6.3
CWE
459
Advisory Published
Advisory Published
Updated

CVE-2024-23672: Apache Tomcat: WebSocket DoS with incomplete closing handshake

First published: Wed Mar 13 2024(Updated: )

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. 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.

Credit: security@apache.org security@apache.org

Affected SoftwareAffected VersionHow to fix
redhat/Apache Tomcat<11.0.0
11.0.0
redhat/Apache Tomcat<10.1.19
10.1.19
redhat/Apache Tomcat<9.0.86
9.0.86
redhat/Apache Tomcat<8.5.99
8.5.99
maven/org.apache.tomcat.embed:tomcat-embed-websocket>=8.5.0<=8.5.98
8.5.99
maven/org.apache.tomcat.embed:tomcat-embed-websocket>=9.0.0-M1<=9.0.85
9.0.86
maven/org.apache.tomcat.embed:tomcat-embed-websocket>=10.1.0-M1<=10.1.18
10.1.19
maven/org.apache.tomcat.embed:tomcat-embed-websocket>=11.0.0-M1<=11.0.0-M16
11.0.0-M17
maven/org.apache.tomcat:tomcat-websocket>=8.5.0<=8.5.98
8.5.99
maven/org.apache.tomcat:tomcat-websocket>=9.0.0-M1<=9.0.85
9.0.86
maven/org.apache.tomcat:tomcat-websocket>=10.1.0-M1<=10.1.18
10.1.19
maven/org.apache.tomcat:tomcat-websocket>=11.0.0-M1<=11.0.0-M16
11.0.0-M17
Tomcat>=8.5.0<8.5.99
Tomcat>=9.0.0<9.0.86
Tomcat>=10.1.0<10.1.19
Tomcat=11.0.0-milestone1
Tomcat=11.0.0-milestone10
Tomcat=11.0.0-milestone11
Tomcat=11.0.0-milestone12
Tomcat=11.0.0-milestone13
Tomcat=11.0.0-milestone14
Tomcat=11.0.0-milestone15
Tomcat=11.0.0-milestone16
Tomcat=11.0.0-milestone2
Tomcat=11.0.0-milestone3
Tomcat=11.0.0-milestone4
Tomcat=11.0.0-milestone5
Tomcat=11.0.0-milestone6
Tomcat=11.0.0-milestone7
Tomcat=11.0.0-milestone8
Tomcat=11.0.0-milestone9
Debian Linux=10.0
Red Hat Fedora=39
Red Hat Fedora=40

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2024-23672?

    CVE-2024-23672 is classified as a denial of service vulnerability affecting Apache Tomcat.

  • How do I fix CVE-2024-23672?

    To fix CVE-2024-23672, upgrade Apache Tomcat to versions 8.5.99, 9.0.86, 10.1.19, or 11.0.0-M17.

  • Which Apache Tomcat versions are impacted by CVE-2024-23672?

    CVE-2024-23672 affects Apache Tomcat versions from 11.0.0-M1 through 11.0.0-M16, 10.1.0-M1 through 10.1.18, 9.0.0-M1 through 9.0.85, and 8.5.0 through 8.5.98.

  • What type of vulnerability is CVE-2024-23672?

    CVE-2024-23672 is a denial of service vulnerability due to incomplete cleanup of WebSocket connections.

  • What are the consequences of CVE-2024-23672?

    The consequences of CVE-2024-23672 include increased resource consumption, potentially affecting the availability of the affected Apache Tomcat service.

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