Improper input validation in Red Hat Xerces

CVE-2020-14338

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (69.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-14338: held from 0.013 to 0.013.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

  • Red Hat Xerces — versions 2.12.0
  • Wildfly — versions All xerces jboss versions before 2.12.0.SP3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-14338?
CVE-2020-14338 is a medium-severity vulnerability in Red Hat Xerces, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2020-09-17.
How severe is CVE-2020-14338?
Medium severity. CVSS v3 base score is 5.3 out of 10.