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Fencer Intel
medium 5.3

CVE-2020-25689 json

Uncontrolled Resource Consumption in WildFly

published 6y ago modified 2mo ago also BIT-wildfly-2020-25689 , EUVD-2022-3316 , GHSA-97hp-6q9g-5cw2

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

A memory leak flaw was found in WildFly in all versions up to 21.0.0.Final, where host-controller tries to reconnect in a loop, generating new connections which are not properly closed while not able to connect to domain-controller. This flaw allows an attacker to cause an Out of memory (OOM) issue, leading to a denial of service. The highest threat from this vulnerability is to system availability.

Patch / fix

  • maven org.wildfly:wildfly-dist 21.0.1
  • bitnami wildfly 21.0.1
  • eap7-wildfly jboss enterprise application platform 7.3 7.3.5-2.GA_redhat_00001.1.el8eap
  • eap7-narayana jboss enterprise application platform 7.3 5.9.10-1.Final_redhat_00001.1.el8eap
  • eap7-resteasy jboss enterprise application platform 7.3 3.11.3-1.Final_redhat_00001.1.el8eap
  • eap7-undertow jboss enterprise application platform 7.3 2.0.33-1.SP2_redhat_00001.1.el8eap
  • eap7-hibernate jboss enterprise application platform 7.3 5.3.20-1.Final_redhat_00001.1.el8eap
  • eap7-hal-console jboss enterprise application platform 7.3 3.2.12-1.Final_redhat_00001.1.el8eap
  • eap7-resteasy-cdi jboss enterprise application platform 7.3 3.11.3-1.Final_redhat_00001.1.el8eap
  • eap7-glassfish-jsf jboss enterprise application platform 7.3 2.3.9-12.SP13_redhat_00001.1.el8eap

red hat advisories RHSA-2021:0248RHSA-2021:0247RHSA-2021:0246

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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-2020-25689 updated cvss 5.3

wildfly-core: memory leak in WildFly host-controller in domain mode while not able to reconnect to domain-controller

  • Red Hat JBoss Data Grid 7 wildfly-core wildfly-core Red Hat JBoss Fuse 6 wildfly-core wildfly-core
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Application Runtimes wildfly-core wildfly-core
    affected: no fix available
  • Red Hat Fuse 7.11
    fixed: vendor fix RHSA-2022:5532
  • Red Hat JBoss EAP 7.3 for BaseOS-8 eap7-wildfly 7.3.5-2.GA_redhat_00001.1.el8eap, eap7-undertow 2.0.33-1.SP2_redhat_00001.1.el8eap, eap7-narayana 5.9.10-1.Final_redhat_00001.1.el8eap, eap7-resteasy 3.11.3-1.Final_redhat_00001.1.el8eap, eap7-activemq-artemis 2.9.0-7.redhat_00017.1.el8eap, eap7-hibernate 5.3.20-1.Final_redhat_00001.1.el8eap, +90 more
    fixed: vendor fix RHSA-2021:0248
  • Red Hat JBoss EAP 7.3 for RHEL 6 Server eap7-wildfly 7.3.5-2.GA_redhat_00001.1.el6eap, eap7-undertow 2.0.33-1.SP2_redhat_00001.1.el6eap, eap7-narayana 5.9.10-1.Final_redhat_00001.1.el6eap, eap7-resteasy 3.11.3-1.Final_redhat_00001.1.el6eap, eap7-activemq-artemis 2.9.0-7.redhat_00017.1.el6eap, eap7-hibernate 5.3.20-1.Final_redhat_00001.1.el6eap, +90 more
    fixed: vendor fix RHSA-2021:0246
  • Red Hat JBoss EAP 7.3 for RHEL 7 Server eap7-wildfly 7.3.5-2.GA_redhat_00001.1.el7eap, eap7-undertow 2.0.33-1.SP2_redhat_00001.1.el7eap, eap7-narayana 5.9.10-1.Final_redhat_00001.1.el7eap, eap7-resteasy 3.11.3-1.Final_redhat_00001.1.el7eap, eap7-activemq-artemis 2.9.0-7.redhat_00017.1.el7eap, eap7-hibernate 5.3.20-1.Final_redhat_00001.1.el7eap, +92 more
    fixed: vendor fix RHSA-2021:0247
  • Red Hat JBoss Enterprise Application Platform 7
    fixed: vendor fix RHSA-2021:0250
  • Red Hat Single Sign-On 7.4.5
    fixed: vendor fix RHSA-2021:0327
show 2 more
  • Red Hat Text-Only RHOAR
    fixed: vendor fix RHSA-2021:0295
  • Red Hat Decision Manager 7 wildfly-core wildfly-core Red Hat Process Automation 7 wildfly-core wildfly-core
    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

Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25689 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
GitHub 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 6.8 AV:N/AC:L/Au:S/C:N/I:N/A:C
OSV 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.wildfly:wildfly-dist
<21.0.1
21.0.1
bitnami wildfly
<21.0.1
21.0.1

Affected products

  • Red Hat wildfly-core

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel 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.