CVE-2021-4040
First published: Fri Nov 19 2021(Updated: )
A 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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Redhat Amq Broker | <7.10.0 | |
| Apache ActiveMQ Artemis | <2.19.1 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2021-4040
- https://bugzilla.redhat.com/show_bug.cgi?id=2028254
- https://github.com/apache/activemq-artemis/pull/3871/commits
- https://issues.apache.org/jira/browse/ARTEMIS-3593
- https://access.redhat.com/errata/RHSA-2022:5101
- https://access.redhat.com/security/cve/cve-2021-4040
- https://www.cve.org/CVERecord?id=CVE-2021-4040 https://nvd.nist.gov/vuln/detail/CVE-2021-4040
Frequently Asked Questions
What is CVE-2021-4040?
CVE-2021-4040 is a vulnerability found in AMQ Broker that can cause a partial interruption to the availability of the broker due to an Out of Memory (OOM) condition.
How does CVE-2021-4040 affect AMQ Broker?
CVE-2021-4040 allows an attacker to partially disrupt the availability of AMQ Broker through a sustained attack of maliciously crafted messages.
What is the severity of CVE-2021-4040?
The severity of CVE-2021-4040 is medium with a CVSS score of 5.3.
Which versions of AMQ Broker and Apache ActiveMQ Artemis are affected by CVE-2021-4040?
AMQ Broker version up to 7.10.0 and Apache ActiveMQ Artemis version up to 2.19.1 are affected by CVE-2021-4040.
How can I fix CVE-2021-4040?
To fix CVE-2021-4040, update your AMQ Broker to a version beyond 7.10.0 and Apache ActiveMQ Artemis to a version beyond 2.19.1.
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