CVE-2024-1023

Io.vertx/vertx-core: memory leak due to the use of netty fastthreadlocal data structures in vertx

publishedCWE-401

A vulnerability in the Eclipse Vert.x toolkit results in a memory leak due to using Netty FastThreadLocal data structures. Specifically, when the Vert.x HTTP client establishes connections to different hosts, triggering the memory leak. The leak can be accelerated with intimate runtime knowledge, allowing an attacker to exploit this vulnerability. For instance, a server accepting arbitrary internet addresses could serve as an attack vector by connecting to these addresses, thereby accelerating the memory leak.

Technical severity6.5 mediumCVSS 3.1 · CNA: redhat

Published2024-03-27Source updated 2026-11-05

Collected2026-11-052 attributed sources

Fixes and workarounds

Workaround

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Source: CNA: redhat

Affected products and versions

Affected products, source version ranges and reporting authorities
Product	Versions	Authority
`vertx-core` https://mvnrepository.com/artifact/io.vertx	4.4.5 (affected) 4.4.6 (affected) 4.5.0 (affected) 4.5.1 (affected) Other versions: unaffected	CNA: redhat
CEQ 3.2 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Cryostat 2 on RHEL 8 Red Hat `cryostat-tech-preview/cryostat-grafana-dashboard-rhel8` https://catalog.redhat.com/software/containers/	≥ 2.4.0-7; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Cryostat 2 on RHEL 8 Red Hat `cryostat-tech-preview/cryostat-operator-bundle` https://catalog.redhat.com/software/containers/	≥ 2.4.0-4; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Cryostat 2 on RHEL 8 Red Hat `cryostat-tech-preview/cryostat-reports-rhel8` https://catalog.redhat.com/software/containers/	≥ 2.4.0-4; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Cryostat 2 on RHEL 8 Red Hat `cryostat-tech-preview/cryostat-rhel8` https://catalog.redhat.com/software/containers/	≥ 2.4.0-4; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Cryostat 2 on RHEL 8 Red Hat `cryostat-tech-preview/cryostat-rhel8-operator` https://catalog.redhat.com/software/containers/	≥ 2.4.0-9; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Cryostat 2 on RHEL 8 Red Hat `cryostat-tech-preview/jfr-datasource-rhel8` https://catalog.redhat.com/software/containers/	≥ 2.4.0-4; < * (unaffected, rpm) Other versions: affected	CNA: redhat
MTA-6.2-RHEL-9 Red Hat `mta/mta-windup-addon-rhel9` https://catalog.redhat.com/software/containers/	≥ 6.2.3-2; < * (unaffected, rpm) Other versions: affected	CNA: redhat
Red Hat AMQ Streams 2.7.0 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat build of Apache Camel 4.4.1 for Spring Boot 3.2 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat build of Quarkus 3.2.11.Final Red Hat `io.vertx/vertx-core` https://access.redhat.com/downloads/content/package-browser/	≥ 4.4.8.redhat-00001; < * (unaffected, rpm) Other versions: affected	CNA: redhat
RHINT Service Registry 2.5.11 GA Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
A-MQ Clients 2 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Migration Toolkit for Runtimes Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
OpenShift Serverless Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat AMQ Broker 7 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat build of Apache Camel 4 for Quarkus 3 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
Red Hat build of Apache Camel for Spring Boot 3 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
Red Hat Build of Keycloak Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
Red Hat build of OptaPlanner 8 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
Red Hat build of Quarkus Red Hat `vertx-core` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat Data Grid 8 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
Red Hat Fuse 7 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat
Red Hat Integration Camel K 1 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
Red Hat Integration Camel Quarkus 2 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: affected	CNA: redhat
Red Hat JBoss Data Grid 7 Red Hat `vert.x` https://access.redhat.com/jbossnetwork/restricted/listSoftware.html	Range not reported Other versions: affected	CNA: redhat
Red Hat JBoss Enterprise Application Platform 7 Red Hat `vert.x` https://access.redhat.com/jbossnetwork/restricted/listSoftware.html	Range not reported Other versions: unaffected	CNA: redhat
Red Hat JBoss Enterprise Application Platform 8 Red Hat `vert.x` https://access.redhat.com/jbossnetwork/restricted/listSoftware.html	Range not reported Other versions: unaffected	CNA: redhat
Red Hat JBoss Enterprise Application Platform Expansion Pack Red Hat `vert.x` https://access.redhat.com/jbossnetwork/restricted/listSoftware.html	Range not reported Other versions: unaffected	CNA: redhat
Red Hat Process Automation 7 Red Hat `vert.x` https://access.redhat.com/downloads/content/package-browser/	Range not reported Other versions: unaffected	CNA: redhat

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / score	Vector	Authority
3.1 / 6.5 medium	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`	CNA: redhat

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

https://access.redhat.com/errata/RHSA-2024:1662CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1706CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2088CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2833CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3527CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3989CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:4884CNA: redhat · vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2024-1023CNA: redhat · vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2260840CNA: redhat · issue-tracking, x_refsource_REDHAT
https://github.com/eclipse-vertx/vert.x/issues/5078CNA: redhat
https://github.com/eclipse-vertx/vert.x/pull/5080CNA: redhat
https://github.com/eclipse-vertx/vert.x/pull/5082CNA: redhat
https://access.redhat.com/errata/RHSA-2024:1662ADP: CVE · vendor-advisory, x_refsource_REDHAT, x_transferred
https://access.redhat.com/errata/RHSA-2024:1706ADP: CVE · vendor-advisory, x_refsource_REDHAT, x_transferred
https://access.redhat.com/errata/RHSA-2024:2088ADP: CVE · vendor-advisory, x_refsource_REDHAT, x_transferred
https://access.redhat.com/errata/RHSA-2024:2833ADP: CVE · vendor-advisory, x_refsource_REDHAT, x_transferred
https://access.redhat.com/errata/RHSA-2024:3527ADP: CVE · vendor-advisory, x_refsource_REDHAT, x_transferred
https://access.redhat.com/errata/RHSA-2024:3989ADP: CVE · vendor-advisory, x_refsource_REDHAT, x_transferred
https://access.redhat.com/errata/RHSA-2024:4884ADP: CVE · vendor-advisory, x_refsource_REDHAT, x_transferred
https://access.redhat.com/security/cve/CVE-2024-1023ADP: CVE · vdb-entry, x_refsource_REDHAT, x_transferred
https://bugzilla.redhat.com/show_bug.cgi?id=2260840ADP: CVE · issue-tracking, x_refsource_REDHAT, x_transferred
https://github.com/eclipse-vertx/vert.x/issues/5078ADP: CVE · x_transferred
https://github.com/eclipse-vertx/vert.x/pull/5080ADP: CVE · x_transferred
https://github.com/eclipse-vertx/vert.x/pull/5082ADP: CVE · x_transferred

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