CVE-2021-4040

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Summary

CVECVE-2021-4040
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-24 16:15:09 UTC
Updated2026-06-15 13:03:40 UTC
DescriptionA flaw was found in AMQ Broker. This issue can cause a partial interruption to the availability of AMQ Broker via an Out of memory (OOM) condition. This flaw allows an attacker to partially disrupt availability to the broker through a sustained attack of maliciously crafted messages. The highest threat from this vulnerability is system availability.

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: 0.024090000 probability, percentile 0.819370000 (date 2026-06-21)

Problem Types: CWE-400 | CWE-787 | CWE-400 CWE-400 - Uncontrolled Resource Consumption

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Artemis All All All All
Application Redhat Amq Broker All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na AMQ Broker affected Fixed in v2.19.1, v2.20.0 Not specified

References

ReferenceSourceLinkTags
[ARTEMIS-3593] OOM error on rogue message to Artemis Broker - ASF JIRA af854a3a-2127-422b-91ae-364da2661108 issues.apache.org Patch, Third Party Advisory
Red Hat Customer Portal - Access to 24x7 support and knowledge af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
ARTEMIS-3593 Defense against OME on parsing XID by clebertsuconic · Pull Request #3871 · apache/activemq-artemis · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
2028254 – (CVE-2021-4040) CVE-2021-4040 AMQ Broker: Malformed message can result in partial DoS (OOM) af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Vendor Advisory
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