Path to vulnerable library: /root/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-core/9.0.26/6312ba542bc58fa9ee789a43516ce4d862548a6b/tomcat-embed-core-9.0.26.jar,/root/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-core/9.0.26/6312ba542bc58fa9ee789a43516ce4d862548a6b/tomcat-embed-core-9.0.26.jar
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.
CVE-2020-17527 - High Severity Vulnerability
Core Tomcat implementation
Library home page: https://tomcat.apache.org/
Path to dependency file: /build.gradle
Path to vulnerable library: /root/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-core/9.0.26/6312ba542bc58fa9ee789a43516ce4d862548a6b/tomcat-embed-core-9.0.26.jar,/root/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-core/9.0.26/6312ba542bc58fa9ee789a43516ce4d862548a6b/tomcat-embed-core-9.0.26.jar
Dependency Hierarchy: - spring-boot-starter-web-2.1.9.RELEASE.jar (Root Library) - spring-boot-starter-tomcat-2.1.9.RELEASE.jar - :x: **tomcat-embed-core-9.0.26.jar** (Vulnerable Library)
Found in HEAD commit: fbe9519eb4fce8d83822469f6d5c65cccbac16a6
Found in base branch: master
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
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.Type: Upgrade version
Origin: https://lists.apache.org/thread/0nl7j4lr5j6jvwh45d2lhtjysqvnwnqx
Release Date: 2020-12-03
Fix Resolution (org.apache.tomcat.embed:tomcat-embed-core): 9.0.40
Direct dependency fix Resolution (org.springframework.boot:spring-boot-starter-web): 2.2.12.RELEASE
Step up your Open Source Security Game with Mend here