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Denial of Service via incomplete cleanup vulnerability in Apache Tomcat

Moderate severity GitHub Reviewed Published Mar 13, 2024 to the GitHub Advisory Database • Updated Nov 19, 2024

Package

maven org.apache.tomcat.embed:tomcat-embed-websocket (Maven)

Affected versions

>= 11.0.0-M1, <= 11.0.0-M16
>= 10.1.0-M1, <= 10.1.18
>= 9.0.0-M1, <= 9.0.85
>= 8.5.0, <= 8.5.98

Patched versions

11.0.0-M17
10.1.19
9.0.86
8.5.99
maven org.apache.tomcat:tomcat-websocket (Maven)
>= 11.0.0-M1, <= 11.0.0-M16
>= 10.1.0-M1, <= 10.1.18
>= 9.0.0-M1, <= 9.0.85
>= 8.5.0, <= 8.5.98
11.0.0-M17
10.1.19
9.0.86
8.5.99

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.

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.

References

Published by the National Vulnerability Database Mar 13, 2024
Published to the GitHub Advisory Database Mar 13, 2024
Reviewed Mar 14, 2024
Last updated Nov 19, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS score

0.044%
(12th percentile)

Weaknesses

CVE ID

CVE-2024-23672

GHSA ID

GHSA-v682-8vv8-vpwr

Source code

Credits

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