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Fencer Vulns
high 7.5

CVE-2023-3223 json

Undertow: outofmemoryerror due to @multipartconfig handling

published 2023-09-27 3 y ago modified 2026-06-17 4 mo ago also GHSA-65h2-wf7m-q2v8 , EUVD-2023-2441

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it's possible to bypass the limit by setting the file name in the request to null.

Patch / fix

  • maven io.undertow:undertow-parent 2.2.24.Final
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 0:2.2.25-3.SP3_redhat_00001.1.el8eap
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 0:2.2.25-3.SP3_redhat_00001.1.el9eap
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 0:2.2.25-3.SP3_redhat_00001.1.el7eap
  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 7 0:18.0.9-1.redhat_00001.1.el7sso
  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 8 0:18.0.9-1.redhat_00001.1.el8sso
  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 9 0:18.0.9-1.redhat_00001.1.el9sso
  • Red Hat RHEL-8 based Middleware Containers 7.6-27
  • undertow Debian 14 2.3.18-1

debian advisories DEBIAN-CVE-2023-3223

  • rh-sso7-keycloak red hat single sign on 7.6 18.0.9-1.redhat_00001.1.el7sso
  • rh-sso7-keycloak-server red hat single sign on 7.6 18.0.9-1.redhat_00001.1.el7sso
  • eap7-wildfly jboss enterprise application platform 7.4 7.4.12-3.GA_redhat_00003.1.el9eap
  • eap7-jettison jboss enterprise application platform 7.4 1.5.4-1.redhat_00002.1.el9eap
  • eap7-undertow jboss enterprise application platform 7.4 2.2.25-3.SP3_redhat_00001.1.el9eap
  • eap7-wildfly-modules jboss enterprise application platform 7.4 7.4.12-3.GA_redhat_00003.1.el9eap
  • eap7-wildfly-javadocs jboss enterprise application platform 7.4 7.4.12-3.GA_redhat_00003.1.el9eap
  • eap7-wildfly-java-jdk8 jboss enterprise application platform 7.4 7.4.12-3.GA_redhat_00003.1.el9eap

red hat advisories RHSA-2025:9583RHSA-2025:4226RHSA-2023:4918RHSA-2023:4507RHSA-2023:4506RHSA-2023:4505

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-2023-3223 updated cvss 7.5

undertow: OutOfMemoryError due to @MultipartConfig handling

  • Red Hat build of Apicurio Registry 2 undertow undertow Red Hat Decision Manager 7 undertow undertow Red Hat Integration Camel K 1 undertow undertow
    affected: no fix available
  • Red Hat JBoss Data Grid 7 undertow undertow Red Hat JBoss Fuse 6 undertow undertow Red Hat OpenStack Platform 13 (Queens) Operational Tools undertow
    affected: no fix planned “Out of support scope”
  • Red Hat Process Automation 7 undertow undertow
    affected: no fix available
  • Red Hat Middleware Containers for OpenShift rh-sso-7/sso76-openshift-rhel8 7.6-27
    fixed: vendor fix RHSA-2023:4921
  • Red Hat Fuse 7.12.1
    fixed: vendor fix RHSA-2023:7247
  • Red Hat Fuse 7.13.0
    fixed: vendor fix RHSA-2024:3354
  • Red Hat JBoss EAP 7.4 for RHEL 7 Server eap7-undertow 2.2.25-3.SP3_redhat_00001.1.el7eap
    fixed: vendor fix RHSA-2023:4505
  • Red Hat JBoss EAP 7.4 for RHEL 8 eap7-undertow 2.2.25-3.SP3_redhat_00001.1.el8eap
    fixed: vendor fix RHSA-2023:4506
show 9 more
  • Red Hat JBoss EAP 7.4 for RHEL 9 eap7-undertow 2.2.25-3.SP3_redhat_00001.1.el9eap
    fixed: vendor fix RHSA-2023:4507
  • Red Hat JBoss Enterprise Application Platform undertow-core 2.2.25.SP3-redhat-00001
    fixed: vendor fix RHSA-2023:4509
  • Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server eap7-jsoup 1.14.2-1.redhat_00002.1.ep7.el7, eap7-wildfly 7.1.10-2.GA_redhat_00002.1.ep7.el7, eap7-woodstox-core 5.0.3-2.redhat_00002.1.ep7.el7, eap7-xml-security 2.0.10-2.redhat_00002.1.ep7.el7, eap7-undertow 1.4.18-14.SP13_redhat_00001.1.ep7.el7, eap7-artemis-native 1.5.5.016-1.redhat_00001.1.ep7.el7, +19 more
    fixed: vendor fix RHSA-2025:4226
  • Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 Server eap7-wildfly 7.3.14-3.GA_redhat_00002.1.el7eap, eap7-netty 4.1.63-5.Final_redhat_00003.1.el7eap, eap7-jackson-core 2.10.4-3.redhat_00006.1.el7eap, eap7-undertow 2.0.41-4.SP5_redhat_00001.1.el7eap, eap7-netty-all 4.1.63-5.Final_redhat_00003.1.el7eap, eap7-jackson-databind 2.10.4-5.redhat_00006.1.el7eap, +37 more
    fixed: vendor fix RHSA-2025:9583
  • Red Hat Single Sign-On 7.6 for RHEL 7 Server rh-sso7-keycloak 18.0.9-1.redhat_00001.1.el7sso, rh-sso7-keycloak-server 18.0.9-1.redhat_00001.1.el7sso
    fixed: vendor fix RHSA-2023:4918
  • Red Hat Single Sign-On 7.6 for RHEL 8 rh-sso7-keycloak 18.0.9-1.redhat_00001.1.el8sso, rh-sso7-keycloak-server 18.0.9-1.redhat_00001.1.el8sso
    fixed: vendor fix RHSA-2023:4919
  • Red Hat Single Sign-On 7.6 for RHEL 9 rh-sso7-keycloak 18.0.9-1.redhat_00001.1.el9sso, rh-sso7-keycloak-server 18.0.9-1.redhat_00001.1.el9sso
    fixed: vendor fix RHSA-2023:4920
  • Red Hat Single Sign-On 7.6.5
    fixed: vendor fix RHSA-2023:4924
  • Red Hat build of Quarkus quarkus-undertow Red Hat Data Grid 8 undertow undertow Red Hat JBoss EAP 7.4 for RHEL 7 Server eap7-jettison 1.5.4-1.redhat_00002.1.el7eap, eap7-xalan-j2 2.7.1-36.redhat_00014.1.el7eap, eap7-wildfly 7.4.12-3.GA_redhat_00003.1.el7eap, eap7-glassfish-jaf 1.2.2-2.redhat_00002.1.el7eap, eap7-hibernate 5.3.30-1.Final_redhat_00001.1.el7eap, eap7-jboss-cert-helper 1.0.9-1.redhat_00001.1.el7eap, +44 more Red Hat JBoss EAP 7.4 for RHEL 8 eap7-jettison 1.5.4-1.redhat_00002.1.el8eap, eap7-xalan-j2 2.7.1-36.redhat_00014.1.el8eap, eap7-wildfly 7.4.12-3.GA_redhat_00003.1.el8eap, eap7-glassfish-jaf 1.2.2-2.redhat_00002.1.el8eap, eap7-hibernate 5.3.30-1.Final_redhat_00001.1.el8eap, eap7-jboss-cert-helper 1.0.9-1.redhat_00001.1.el8eap, +45 more Red Hat JBoss EAP 7.4 for RHEL 9 eap7-jettison 1.5.4-1.redhat_00002.1.el9eap, eap7-xalan-j2 2.7.1-36.redhat_00014.1.el9eap, eap7-wildfly 7.4.12-3.GA_redhat_00003.1.el9eap, eap7-glassfish-jaf 1.2.2-2.redhat_00002.1.el9eap, eap7-hibernate 5.3.30-1.Final_redhat_00001.1.el9eap, eap7-jboss-cert-helper 1.0.9-1.redhat_00001.1.el9eap, +43 more Red Hat JBoss Enterprise Application Platform pom.xml, c3 0.6.0, c3 0.7.1, d3 5.9.2, fs 2.1.2, ip 2.0.0, +1542 more
    +2 more products
    Red Hat JBoss Enterprise Application Platform Expansion Pack undertow undertow Red Hat support for Spring Boot undertow undertow
    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
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

2.66% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven io.undertow:undertow-parent
<2.2.24.Final
2.2.24.Final

Affected products

  • Red Hat Red Hat Fuse 7.12.1
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.1.0
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9
  • Red Hat Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7
  • Red Hat Red Hat Single Sign-On 7.6.5
  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 7
  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 8
  • Red Hat Red Hat Single Sign-On 7.6 for RHEL 9
  • Red Hat RHEL-8 based Middleware Containers
  • Red Hat Red Hat build of Quarkus
  • Red Hat Red Hat Data Grid 8
  • Red Hat Red Hat Decision Manager 7
  • Red Hat Red Hat Integration Camel K
  • Red Hat Red Hat Integration Service Registry
  • Red Hat Red Hat JBoss Data Grid 7
  • Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack
  • Red Hat Red Hat JBoss Fuse 6
  • Red Hat Red Hat OpenStack Platform 13 (Queens) Operational Tools
  • Red Hat Red Hat Process Automation 7
  • Red Hat Red Hat support for Spring Boot

Classification

Weakness
  • CWE-789 Memory Allocation with Excessive Size Value
  • CWE-400 Uncontrolled Resource Consumption
Technology feeds

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.