CVE-2021-4040

Description

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.

Categories

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.17%
Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a AMQ Broker
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2028254 issue tracking vendor advisory
https://access.redhat.com/security/cve/CVE-2021-4040 vendor advisory
https://issues.apache.org/jira/browse/ARTEMIS-3593 third party advisory patch
https://github.com/apache/activemq-artemis/pull/3871/commits third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-4040?
CVE-2021-4040 has been scored as a medium severity vulnerability.
How to fix CVE-2021-4040?
To fix CVE-2021-4040, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4040 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-4040 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4040?
CVE-2021-4040 affects n/a AMQ Broker.
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