CVE-2021-43980 (Low) detected in tomcat-embed-core-9.0.38.jar

[mend-bolt-for-github[bot]]

CVE-2021-43980 - Low Severity Vulnerability

Vulnerable Library - tomcat-embed-core-9.0.38.jar

Core Tomcat implementation

Dependency Hierarchy: - spring-boot-starter-web-2.3.4.RELEASE.jar (Root Library) - spring-boot-starter-tomcat-2.3.4.RELEASE.jar - :x: **tomcat-embed-core-9.0.38.jar** (Vulnerable Library)

Found in HEAD commit: 2817d1688b62c54e02508433b24c0e8cca0bcd57

Found in base branch: master

Vulnerability Details

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Publish Date: 2022-09-28

URL: CVE-2021-43980

CVSS 3 Score Details (3.7)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: None - Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3

Release Date: 2022-09-28

Fix Resolution (org.apache.tomcat.embed:tomcat-embed-core): 9.0.62

Direct dependency fix Resolution (org.springframework.boot:spring-boot-starter-web): 2.5.13

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