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Fencer Vulns
medium 6.5

CVE-2020-14297 json

Wildfly EJB Client causes DoS

published 2020-07-24 6 y ago modified 2026-06-17 4 mo ago also GHSA-qcch-9268-59jw , EUVD-2022-4947

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

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 eventaully unavailable. An attacker can take advantage and cause denial of service attack and make services unavailable.

Patch / fix

  • maven org.jboss:jboss-ejb-client 4.0.34.Final
  • redhat jboss-ejb-client 4.0.34
  • qpid-cpp a mq clients 2 1.36.0-31.el6_10amq
  • qpid-cpp a mq clients 2 1.36.0-31.el7amq
  • nodejs-rhea a mq clients 2 1.0.24-1.el8
  • qpid-proton a mq clients 2 0.32.0-1.el6_10
  • qpid-proton a mq clients 2 0.32.0-2.el7
  • qpid-proton a mq clients 2 0.32.0-2.el8
  • qpid-proton-c a mq clients 2 0.32.0-1.el6_10
  • qpid-proton-c a mq clients 2 0.32.0-2.el7

red hat advisories RHSA-2020:3817RHSA-2020:3639RHSA-2020:3638RHSA-2020:3637RHSA-2020:3463RHSA-2020:3462

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-14297 updated cvss 6.5

wildfly: Some EJB transaction objects may get accumulated causing Denial of Service

  • Red Hat BPM Suite 6 jboss-ejb-client Red Hat JBoss Data Grid 7 jboss-ejb-client Red Hat JBoss Enterprise Application Platform 6 jboss-ejb-client Red Hat JBoss Enterprise Application Platform Continuous Delivery jboss-ejb-client Red Hat JBoss Fuse 6 jboss-ejb-client Red Hat JBoss Operations Network 3 jboss-ejb-client
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Application Runtimes jboss-ejb-client Red Hat Single Sign-On 7 jboss-ejb-client
    affected: no fix available
  • Red Hat AMQ Clients 2 nodejs-rhea 1.0.24-1.el8, qpid-proton 0.32.0-2.el7, qpid-proton 0.32.0-2.el8, qpid-cpp 1.36.0-31.el7amq, qpid-proton-c 0.32.0-2.el7, qpid-proton-c 0.32.0-2.el8, +16 more
    fixed: vendor fix RHSA-2020:3817
  • Red Hat Fuse 7.9
    fixed: vendor fix RHSA-2021:3140
  • Red Hat JBoss EAP 7.2
    fixed: vendor fix RHSA-2020:3144
  • Red Hat JBoss EAP 7.2 for RHEL 6 Server eap7-dom4j 2.1.3-1.redhat_00001.1.el6eap, eap7-wildfly 7.2.8-6.GA_redhat_00003.1.el6eap, eap7-wildfly 7.2.9-4.GA_redhat_00003.1.el6eap, eap7-resteasy 3.6.1-10.SP9_redhat_00001.1.el6eap, eap7-undertow 2.0.30-4.SP4_redhat_00001.1.el6eap, eap7-weld-ejb 3.0.6-4.Final_redhat_00004.1.el6eap, +93 more
    fixed: vendor fix RHSA-2020:3637
  • Red Hat JBoss EAP 7.2 for RHEL 7 Server eap7-dom4j 2.1.3-1.redhat_00001.1.el7eap, eap7-wildfly 7.2.8-6.GA_redhat_00003.1.el7eap, eap7-wildfly 7.2.9-4.GA_redhat_00003.1.el7eap, eap7-resteasy 3.6.1-10.SP9_redhat_00001.1.el7eap, eap7-undertow 2.0.30-4.SP4_redhat_00001.1.el7eap, eap7-weld-ejb 3.0.6-4.Final_redhat_00004.1.el7eap, +97 more Red Hat JBoss EAP 7.2 for RHEL 8 eap7-dom4j 2.1.3-1.redhat_00001.1.el8eap, eap7-wildfly 7.2.8-6.GA_redhat_00003.1.el8eap, eap7-wildfly 7.2.9-4.GA_redhat_00003.1.el8eap, eap7-resteasy 3.6.1-10.SP9_redhat_00001.1.el8eap, eap7-undertow 2.0.30-4.SP4_redhat_00001.1.el8eap, eap7-weld-ejb 3.0.6-4.Final_redhat_00004.1.el8eap, +93 more
    fixed: vendor fix RHSA-2020:3142
  • Red Hat JBoss EAP 7.3 for BaseOS-8 eap7-dom4j 2.1.3-1.redhat_00001.1.el8eap, eap7-wildfly 7.3.1-7.GA_redhat_00004.1.el8, eap7-wildfly 7.3.2-4.GA_redhat_00002.1.el8eap, eap7-netty 4.1.48-1.Final_redhat_00001.1.el8eap, eap7-jackson-core 2.10.4-1.redhat_00001.1.el8eap, eap7-undertow 2.0.30-4.SP4_redhat_00001.1.el8eap, +85 more
    fixed: vendor fix RHSA-2020:3141
show 6 more
  • Red Hat JBoss EAP 7.3 for RHEL 6 Server eap7-dom4j 2.1.3-1.redhat_00001.1.el6eap, eap7-wildfly 7.3.1-7.GA_redhat_00004.1.el6eap, eap7-wildfly 7.3.2-4.GA_redhat_00002.1.el6eap, eap7-netty 4.1.48-1.Final_redhat_00001.1.el6eap, eap7-jackson-core 2.10.4-1.redhat_00001.1.el6eap, eap7-undertow 2.0.30-4.SP4_redhat_00001.1.el6eap, +85 more
    fixed: vendor fix RHSA-2020:3461
  • Red Hat JBoss EAP 7.3 for RHEL 7 Server eap7-dom4j 2.1.3-1.redhat_00001.1.el7eap, eap7-wildfly 7.3.1-7.GA_redhat_00004.1.el7eap, eap7-wildfly 7.3.2-4.GA_redhat_00002.1.el7eap, eap7-netty 4.1.48-1.Final_redhat_00001.1.el7eap, eap7-jackson-core 2.10.4-1.redhat_00001.1.el7eap, eap7-undertow 2.0.30-4.SP4_redhat_00001.1.el7eap, +89 more
    fixed: vendor fix RHSA-2020:3141
  • Red Hat JBoss Enterprise Application Platform 7
    fixed: vendor fix RHSA-2020:3143
  • Red Hat Single Sign-On 7.4.2
    fixed: vendor fix RHSA-2020:3501
  • Red Hat Text-Only RHOAR
    fixed: vendor fix RHSA-2020:3539
  • Red Hat Data Grid 8 wildfly wildfly Red Hat Decision Manager 7 jboss-ejb-client Red Hat Process Automation 7 jboss-ejb-client
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.jboss:jboss-ejb-client
<4.0.34.Final
4.0.34.Final

Affected products

  • Red Hat wildfly

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.