GitHub Advisoryadvisory · Maven

GHSA-m7jv-hq7h-mq7c Infinite Loop in Apache Tomcat

HIGH Published 2022-02-08 Modified 2026-08-25 Official page ↗
Aliases
CVE-2020-13935
Ecosystem
Maven
Packages
org.apache.tomcat:tomcat, org.apache.tomcat.embed:tomcat-embed-websocket, org.apache.tomcat:tomcat-websocket
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-835
Reviewed
2021-04-12

Affected packages

• Maven org.apache.tomcat:tomcat: >= 10.0.0-M1, < 10.0.0-M7 → fixed in 10.0.0-M7 • Maven org.apache.tomcat:tomcat: >= 9.0.0.M1, < 9.0.37 → fixed in 9.0.37 • Maven org.apache.tomcat:tomcat: >= 8.5.0, < 8.5.57 → fixed in 8.5.57 • Maven org.apache.tomcat:tomcat: >= 7.0.27, < 7.0.105 → fixed in 7.0.105 • Maven org.apache.tomcat.embed:tomcat-embed-websocket: >= 7.0.27, < 7.0.105 → fixed in 7.0.105 • Maven org.apache.tomcat.embed:tomcat-embed-websocket: >= 8.5.0, < 8.5.57 → fixed in 8.5.57 • Maven org.apache.tomcat.embed:tomcat-embed-websocket: >= 9.0.0.M1, < 9.0.37 → fixed in 9.0.37 • Maven org.apache.tomcat.embed:tomcat-embed-websocket: >= 10.0.0-M1, < 10.0.0-M7 → fixed in 10.0.0-M7 • Maven org.apache.tomcat:tomcat-websocket: >= 10.0.0-M1, < 10.0.0-M7 → fixed in 10.0.0-M7 • Maven org.apache.tomcat:tomcat-websocket: >= 9.0.0.M1, < 9.0.37 → fixed in 9.0.37 • Maven org.apache.tomcat:tomcat-websocket: >= 8.5.0, < 8.5.57 → fixed in 8.5.57 • Maven org.apache.tomcat:tomcat-websocket: >= 7.0.27, < 7.0.105 → fixed in 7.0.105

Description

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

Related

Alias · CVE (1)

  • CVE-2020-13935 The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to… vulnerability

Weakness · CWE (1)

  • CWE-835 Loop with Unreachable Exit Condition weakness

References