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Improper Input Validation in Xerces

Moderate severity GitHub Reviewed Published Feb 15, 2022 to the GitHub Advisory Database • Updated Feb 2, 2023

Package

maven xerces:xercesImpl (Maven)

Affected versions

<= 2.12.0.sp2

Patched versions

2.12.0.sp3

Description

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. All xerces jboss versions before 2.12.0.SP3.

References

Published by the National Vulnerability Database Sep 17, 2020
Published to the GitHub Advisory Database Feb 15, 2022
Reviewed Jun 24, 2022
Last updated Feb 2, 2023

Severity

Moderate
5.3
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weaknesses

CVE ID

CVE-2020-14338

GHSA ID

GHSA-w4jq-qh47-hvjq

Source code

No known source code

Credits

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