CVE-2020-17527 (High) detected in tomcat-embed-core-9.0.27.jar

[mend-bolt-for-github]

CVE-2020-17527 - High Severity Vulnerability

Vulnerable Library - tomcat-embed-core-9.0.27.jar

Core Tomcat implementation

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

Path to dependency file: /pom.xml

Path to vulnerable library: /20201127105057_JYADOJ/downloadResource_XKWWQX/20201127105927/tomcat-embed-core-9.0.27.jar

Dependency Hierarchy:

• ❌ tomcat-embed-core-9.0.27.jar (Vulnerable Library)

Found in HEAD commit: 26994796809a3a8687a975e3361495d457afe47c

Found in base branch: master

Vulnerability Details

While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.

Publish Date: 2020-12-03

URL: CVE-2020-17527

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • 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/0nl7j4lr5j6jvwh45d2lhtjysqvnwnqx

Release Date: 2020-12-03

Fix Resolution: 9.0.40

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