CVE-2021-4040
org.apache.activemq:artemis-core-client Vulnerable to Out-of-Bounds Write
5.3
MEDIUM
CVSS 3.1
EPSS 4.2%
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.
How to fix CVE-2021-4040
To remediate CVE-2021-4040, upgrade the affected package to a fixed version below.
- —upgrade to 2.19.1 or later
Is CVE-2021-4040 being exploited?
Low — EPSS is 4.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.19.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |