CVE-2020-14297: Jboss ejb client Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-qcch-9268-59jw
CVSS 6.5
CWE-400
Published
Advisory Summary

CVE-2020-14297 is a MODERATE (CVSS 6.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Jboss ejb client libraries in the Maven ecosystem. The issue involves wildfly ejb client causes dos. Remediation is available by upgrading affected packages to version 4.0.34.Final.

CVE-2020-14297 at a Glance

CVE Identifier CVE-2020-14297
GHSA Identifier GHSA-qcch-9268-59jw
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Jboss ejb client
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2020-14297

To remediate this vulnerability, upgrade all affected Jboss ejb client dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.jboss:jboss-ejb-client fixed: 4.0.34.Final
<dependency>
    <groupId>org.jboss</groupId>
    <artifactId>jboss-ejb-client</artifactId>
    <version>4.0.34.Final</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree -Dincludes=org.jboss

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-14297, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jboss

Analyze the terminal output to locate any version of Jboss ejb client in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.34.Final), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jboss command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Jboss ejb client, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A flaw was discovered in Wildfly's EJB Client as shipped with Red Hat JBoss EAP 7, where some specific EJB transaction objects may get accumulated over the time and can cause services to slow down and eventually unavailable. An attacker can take advantage and cause denial of service attack and make services unavailable.

CVE-2020-14297 Affected Jboss ejb client Versions

1 component(s)
Fixed Versions:
4.0.34.Final
Product / Package Ecosystem Affected Versions Fixed Version
org.jboss:jboss-ejb-client
Maven
< 4.0.34.Final
4.0.34.Final

References

NVD — CVE-2020-14297 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14297
Security Fix Commit FIX COMMIT
https://github.com/wildfly/jboss-ejb-client/commit/e5f8e4b591f1698a53adc7e430584ca2a8fc9f1b
Jboss ejb client Source Repository REPOSITORY
https://github.com/wildfly/jboss-ejb-client/commits/4.0.34.Final
Jboss ejb client Source Repository REPOSITORY
https://github.com/wildfly/jboss-ejb-client
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14297
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1853595
access.redhat.com/solutions/21906 WEB
https://access.redhat.com/solutions/21906
Jboss ejb client Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2020-14297
access.redhat.com/errata/rhsa-2021:31... WEB
https://access.redhat.com/errata/RHSA-2021:3140
access.redhat.com/errata/rhsa-2020:38... WEB
https://access.redhat.com/errata/RHSA-2020:3817
access.redhat.com/errata/rhsa-2020:36... WEB
https://access.redhat.com/errata/RHSA-2020:3642
access.redhat.com/errata/rhsa-2020:36... WEB
https://access.redhat.com/errata/RHSA-2020:3639
access.redhat.com/errata/rhsa-2020:36... WEB
https://access.redhat.com/errata/RHSA-2020:3638
access.redhat.com/errata/rhsa-2020:36... WEB
https://access.redhat.com/errata/RHSA-2020:3637
access.redhat.com/errata/rhsa-2020:35... WEB
https://access.redhat.com/errata/RHSA-2020:3539
access.redhat.com/errata/rhsa-2020:35... WEB
https://access.redhat.com/errata/RHSA-2020:3501
access.redhat.com/errata/rhsa-2020:34... WEB
https://access.redhat.com/errata/RHSA-2020:3464
access.redhat.com/errata/rhsa-2020:34... WEB
https://access.redhat.com/errata/RHSA-2020:3463
access.redhat.com/errata/rhsa-2020:34... WEB
https://access.redhat.com/errata/RHSA-2020:3462
access.redhat.com/errata/rhsa-2020:34... WEB
https://access.redhat.com/errata/RHSA-2020:3461
access.redhat.com/errata/rhsa-2020:31... WEB
https://access.redhat.com/errata/RHSA-2020:3144
access.redhat.com/errata/rhsa-2020:31... WEB
https://access.redhat.com/errata/RHSA-2020:3143
access.redhat.com/errata/rhsa-2020:31... WEB
https://access.redhat.com/errata/RHSA-2020:3142
access.redhat.com/errata/rhsa-2020:31... WEB
https://access.redhat.com/errata/RHSA-2020:3141

Frequently Asked Questions

What is CVE-2020-14297?
CVE-2020-14297 is a security vulnerability in Jboss ejb client involving Wildfly EJB Client causes DoS under CWE-400: Uncontrolled Resource Consumption.
Which Jboss ejb client versions are affected?
Affected versions include releases prior to 4.0.34.Final across affected packages: org.jboss:jboss-ejb-client.
What version fixes CVE-2020-14297?
Upgrading to 4.0.34.Final (or the latest patched release for your respective branch) resolves the vulnerability.
Is jboss-ejb-client affected?
Yes, org.jboss:jboss-ejb-client is affected in releases prior to 4.0.34.Final. Upgrade your dependency to 4.0.34.Final or later.
What is the CVSS score of CVE-2020-14297?
CVE-2020-14297 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2020-14297?
CVE-2020-14297 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check Maven dependencies for CVE-2020-14297?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jboss'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qcch-9268-59jw",
  "modified" : "2023-08-22T21:54:12Z",
  "published" : "2022-05-24T17:24:17Z",
  "aliases" : [ "CVE-2020-14297" ],
  "summary" : "Wildfly EJB Client causes DoS",
  "details" : "A flaw was discovered in Wildfly's EJB Client as shipped with Red Hat JBoss EAP 7, where some specific EJB transaction objects may get accumulated over the time and can cause services to slow down and eventually unavailable. An attacker can take advantage and cause denial of service attack and make services unavailable.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
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    },
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      } ]
    } ]
  } ],
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    "url" : "https://access.redhat.com/errata/RHSA-2020:3642"
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    "url" : "https://access.redhat.com/errata/RHSA-2020:3463"
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    "url" : "https://access.redhat.com/errata/RHSA-2020:3462"
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    "url" : "https://access.redhat.com/errata/RHSA-2020:3461"
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    "url" : "https://access.redhat.com/errata/RHSA-2020:3142"
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  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-13T21:16:34Z",
    "nvd_published_at" : "2020-07-24T16:15:00Z"
  }
}