CVE-2020-11996 (High) detected in tomcat-embed-core-9.0.29.jar

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CVE-2020-11996 - High Severity Vulnerability

Vulnerable Library - tomcat-embed-core-9.0.29.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/9.0.29/207dc9ca4215853d96ed695862f9873001f02a4b/tomcat-embed-core-9.0.29.jar

Dependency Hierarchy: - spring-boot-starter-web-2.2.2.RELEASE.jar (Root Library) - spring-boot-starter-tomcat-2.2.2.RELEASE.jar - :x: **tomcat-embed-core-9.0.29.jar** (Vulnerable Library)

Found in HEAD commit: a19b561db4b9e70ada712e7e00531afaa4faedc5

Found in base branch: master

Vulnerability Details

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.

Publish Date: 2020-06-26

URL: CVE-2020-11996

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: None - Integrity Impact: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://lists.apache.org/thread.html/r5541ef6b6b68b49f76fc4c45695940116da2bcbe0312ef204a00a2e0%40%3Cannounce.tomcat.apache.org%3E,http://tomcat.apache.org/security-10.html

Release Date: 2020-06-26

Fix Resolution (org.apache.tomcat.embed:tomcat-embed-core): 9.0.36

Direct dependency fix Resolution (org.springframework.boot:spring-boot-starter-web): 2.2.8.RELEASE

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