Xerces2 is the next generation of high performance, fully compliant XML parsers in the
Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI),
a complete framework for building parser components and configurations that is extremely
modular and easy to program.
A flaw was found in Wildfly's implementation of Xerces, specifically in the way the XMLSchemaValidator class in the JAXP component of Wildfly enforced the "use-grammar-pool-only" feature. This flaw allows a specially-crafted XML file to manipulate the validation process in certain cases. This issue is the same flaw as CVE-2020-14621, which affected OpenJDK, and uses a similar code. This flaw affects all Xerces JBoss versions before 2.12.0.SP3.
CVE-2020-14338 - Medium Severity Vulnerability
Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program.
Library home page: http://www.apache.org/
Path to vulnerable library: /target/libs/provided/xercesImpl-2.9.1.jar
Dependency Hierarchy: - :x: **xercesImpl-2.9.1.jar** (Vulnerable Library)
Found in HEAD commit: 517ce877d9ca28b78d99878eae6078eb4dbd1e1b
Found in base branch: main
A flaw was found in Wildfly's implementation of Xerces, specifically in the way the XMLSchemaValidator class in the JAXP component of Wildfly enforced the "use-grammar-pool-only" feature. This flaw allows a specially-crafted XML file to manipulate the validation process in certain cases. This issue is the same flaw as CVE-2020-14621, which affected OpenJDK, and uses a similar code. This flaw affects all Xerces JBoss versions before 2.12.0.SP3.
Publish Date: 2020-09-17
URL: CVE-2020-14338
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: Low - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Release Date: 2020-10-19
Fix Resolution: 2.12.0
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