CVE-2023-5379

highpriority · track · 30EPSS 0.010 · 63 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.03% (63rd) EPSS

CVSS 7.5 · high

Is it mine?

25 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-28

A flaw was found in Undertow. When an AJP request is sent that exceeds the max-header-size attribute in ajp-listener, JBoss EAP is marked in an error state by mod_cluster in httpd, causing JBoss EAP to close the TCP connection without returning an AJP response. This happens because mod_proxy_cluster marks the JBoss EAP instance as an error worker when the TCP connection is closed from the backend after sending the AJP request without receiving an AJP response, and stops forwarding. This issue could allow a malicious user could to repeatedly send requests that exceed the max-header-size, causing a Denial of Service (DoS).

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · secalert@redhat.com USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USprimary

affected products (25)

Products and version ranges known to be affected.

NetApp ActiveIQ Unified Managerall versionscert_bundDEcpe:/a:netapp:active_iq_unified_manager:-
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:1.0.12-1.Final_redhat_00001.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:1.0.12-6.Final_redhat_00001.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:1.0.13-1.Final_redhat_00001.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:1.0.21-1.Final_redhat_00001.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:1.1.14-1.Final_redhat_00001.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:1.4.18-16.SP14_redhat_00001.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:2.8.11.6-3.SP1_redhat_00003.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:3.0.1-4.b08_redhat_00005.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:4.0.12-1.Final_redhat_00002.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:4.1.63-2.Final_redhat_00003.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:5.1.17-3.Final_redhat_00004.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7< 0:7.1.11-4.GA_redhat_00002.1.ep7.el7enisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7< 0:1.10.17-1.Final_redhat_00001.1.el7eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7< 0:1.7.2-16.Final_redhat_00017.1.el7eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7< 0:2.0.41-4.SP5_redhat_00001.1.el7eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7< 0:2.10.4-2.redhat_00006.1.el7eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7< 0:2.10.4-3.redhat_00006.1.el7eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7< 0:2.10.4-5.redhat_00006.1.el7eapenisa_euvdEU
Red Hat Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7< 0:4.1.63-5.Final_redhat_00003.1.el7eapenisa_euvdEU

showing 20 of 25

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1203NetApp ActiveIQ Unified Manager: Schwachstelle ermöglicht Denial of ServiceDeutsch2025-06-01csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in NetApp ActiveIQ Unified Manager ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2023-12-12modified 2026-08-04

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+3269 more

references (14)

External citations — patches, advisories, analysis.

scry

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