CVE-2021-43980 (Low) detected in tomcat-embed-core-8.5.68.jar, tomcat-embed-core-9.0.48.jar

[mend-bolt-for-github]

CVE-2021-43980 - Low Severity Vulnerability

Vulnerable Libraries - tomcat-embed-core-8.5.68.jar, tomcat-embed-core-9.0.48.jar

tomcat-embed-core-8.5.68.jar

Core Tomcat implementation

Library home page: https://tomcat.apache.org/

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-core/8.5.68/ce25d8bd7cb99e5cb92a361e9927b99c85968f15/tomcat-embed-core-8.5.68.jar

Dependency Hierarchy:

• gretty-runner-tomcat85-3.0.5.jar (Root Library)
  • ❌ tomcat-embed-core-8.5.68.jar (Vulnerable Library)

tomcat-embed-core-9.0.48.jar

Core Tomcat implementation

Library home page: https://tomcat.apache.org/

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-core/9.0.48/f112cd2380d8215e22ac40aff128a1b6daa2f0ac/tomcat-embed-core-9.0.48.jar

Dependency Hierarchy:

• gretty-runner-tomcat9-3.0.5.jar (Root Library)
  • ❌ tomcat-embed-core-9.0.48.jar (Vulnerable Library)

Found in HEAD commit: 4cb9afca7b4ab356e0863ec7515cb10a779ea02d

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:tomcat-coyote:8.5.78,9.0.62,10.0.20,10.1.0-M14

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