CVE Vulnerabilities

CVE-2020-13935

Loop with Unreachable Exit Condition ('Infinite Loop')

Published: Jul 14, 2020 | Modified: Nov 07, 2023
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

Affected Software

Name Vendor Start Version End Version
Tomcat Apache 7.0.27 (including) 7.0.104 (including)
Tomcat Apache 8.5.0 (including) 8.5.56 (including)
Tomcat Apache 9.0.1 (including) 9.0.36 (including)
Tomcat Apache 9.0.0-milestone1 (including) 9.0.0-milestone1 (including)
Tomcat Apache 9.0.0-milestone10 (including) 9.0.0-milestone10 (including)
Tomcat Apache 9.0.0-milestone11 (including) 9.0.0-milestone11 (including)
Tomcat Apache 9.0.0-milestone12 (including) 9.0.0-milestone12 (including)
Tomcat Apache 9.0.0-milestone13 (including) 9.0.0-milestone13 (including)
Tomcat Apache 9.0.0-milestone14 (including) 9.0.0-milestone14 (including)
Tomcat Apache 9.0.0-milestone15 (including) 9.0.0-milestone15 (including)
Tomcat Apache 9.0.0-milestone16 (including) 9.0.0-milestone16 (including)
Tomcat Apache 9.0.0-milestone17 (including) 9.0.0-milestone17 (including)
Tomcat Apache 9.0.0-milestone18 (including) 9.0.0-milestone18 (including)
Tomcat Apache 9.0.0-milestone19 (including) 9.0.0-milestone19 (including)
Tomcat Apache 9.0.0-milestone2 (including) 9.0.0-milestone2 (including)
Tomcat Apache 9.0.0-milestone20 (including) 9.0.0-milestone20 (including)
Tomcat Apache 9.0.0-milestone21 (including) 9.0.0-milestone21 (including)
Tomcat Apache 9.0.0-milestone22 (including) 9.0.0-milestone22 (including)
Tomcat Apache 9.0.0-milestone23 (including) 9.0.0-milestone23 (including)
Tomcat Apache 9.0.0-milestone24 (including) 9.0.0-milestone24 (including)
Tomcat Apache 9.0.0-milestone25 (including) 9.0.0-milestone25 (including)
Tomcat Apache 9.0.0-milestone26 (including) 9.0.0-milestone26 (including)
Tomcat Apache 9.0.0-milestone27 (including) 9.0.0-milestone27 (including)
Tomcat Apache 9.0.0-milestone3 (including) 9.0.0-milestone3 (including)
Tomcat Apache 9.0.0-milestone4 (including) 9.0.0-milestone4 (including)
Tomcat Apache 9.0.0-milestone5 (including) 9.0.0-milestone5 (including)
Tomcat Apache 9.0.0-milestone6 (including) 9.0.0-milestone6 (including)
Tomcat Apache 9.0.0-milestone7 (including) 9.0.0-milestone7 (including)
Tomcat Apache 9.0.0-milestone8 (including) 9.0.0-milestone8 (including)
Tomcat Apache 9.0.0-milestone9 (including) 9.0.0-milestone9 (including)
Tomcat Apache 10.0.0-milestone1 (including) 10.0.0-milestone1 (including)
Tomcat Apache 10.0.0-milestone2 (including) 10.0.0-milestone2 (including)
Tomcat Apache 10.0.0-milestone3 (including) 10.0.0-milestone3 (including)
Tomcat Apache 10.0.0-milestone4 (including) 10.0.0-milestone4 (including)
Tomcat Apache 10.0.0-milestone5 (including) 10.0.0-milestone5 (including)
Tomcat Apache 10.0.0-milestone6 (including) 10.0.0-milestone6 (including)

References