Undertow: learningpushhandler can lead to remote memory dos attacks

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-3653
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-07-08 22:15:02 UTC
Updated2026-09-08 23:17:20 UTC
DescriptionA vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the handler vulnerable. If someone overwrites that config, the server is not subject to the attack. The attacker needs to be able to reach the server with a normal HTTP request.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS: 0.018660000 probability, percentile 0.779270000 (date 2026-09-08)

Problem Types: CWE-401 | CWE-401 Missing Release of Memory after Effective Lifetime

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNACVSS5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Build Of Quarkus 3.8.6.redhat unaffected 5.2.4.redhat-00001 * rpm Not specified
CNA Red Hat Red Hat JBoss Enterprise Application Platform unaffected 2.2.33.SP1-redhat-00001 * rpm Not specified
CNA Red Hat Red Hat JBoss Enterprise Application Platform 7.4 For RHEL 8 unaffected 0:2.2.33-1.SP1_redhat_00001.1.el8eap * rpm Not specified
CNA Red Hat Red Hat JBoss Enterprise Application Platform 7.4 For RHEL 9 unaffected 0:2.2.33-1.SP1_redhat_00001.1.el9eap * rpm Not specified
CNA Red Hat Red Hat JBoss Enterprise Application Platform 7.4 On RHEL 7 unaffected 0:2.2.33-1.SP1_redhat_00001.1.el7eap * rpm Not specified
CNA Red Hat Red Hat JBoss Enterprise Application Platform 8 Not specified Not specified
CNA Red Hat OpenShift Serverless Not specified Not specified
CNA Red Hat Red Hat Build Of Apache Camel 4 For Quarkus 3 Not specified Not specified
CNA Red Hat Red Hat Build Of Apache Camel For Spring Boot 4 Not specified Not specified
CNA Red Hat Red Hat Build Of Apache Camel - HawtIO 4 Not specified Not specified
CNA Red Hat Red Hat Build Of Apicurio Registry 2 Not specified Not specified
CNA Red Hat Red Hat Build Of Keycloak Not specified Not specified
CNA Red Hat Red Hat Build Of OptaPlanner 8 Not specified Not specified
CNA Red Hat Red Hat Build Of Quarkus Not specified Not specified
CNA Red Hat Red Hat Data Grid 8 Not specified Not specified
CNA Red Hat Red Hat Fuse 7 Not specified Not specified
CNA Red Hat Red Hat Integration Camel K 1 Not specified Not specified
CNA Red Hat Red Hat Integration Camel Quarkus 2 Not specified Not specified
CNA Red Hat Red Hat JBoss Data Grid 7 Not specified Not specified
CNA Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack Not specified Not specified
CNA Red Hat Red Hat JBoss Fuse Service Works 6 Not specified Not specified
CNA Red Hat Red Hat Process Automation 7 Not specified Not specified
CNA Red Hat Red Hat Single Sign-On 7 Not specified Not specified
CNA Red Hat Streams For Apache Kafka Not specified Not specified

References

ReferenceSourceLinkTags
security.netapp.com/advisory/ntap-20240828-0002 af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
access.redhat.com/security/cve/CVE-2024-3653 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
bugzilla.redhat.com/show_bug.cgi af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
access.redhat.com/errata/RHSA-2024:5147 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2024:4392 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
access.redhat.com/errata/RHSA-2024:5144 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2024:6437 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2024:5143 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2024:5145 [email protected] access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Red Hat would like to thank Keke Lian, Haoran Zhao, and Yongheng Liu (Secsys Lab of Fudan University) for reporting this issue. (en)

Additional Advisory Data

SourceTimeEvent
CNA2024-04-11T00:00:00.000ZReported to Red Hat.
CNA2024-07-08T20:53:45.000ZMade public.

Workarounds

CNA: Setting the maxAge configuration is sufficient to prevent the behavior of this vulnerability being explored.

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