Buffer overflow in Apache Artemis
CVE-2021-4040
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.032 (87.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.032 · change: +0.001
Affected products
- Apache Artemis
- Red Hat Amq Broker
- Amq Broker — versions Fixed in v2.19.1, v2.20.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)
- access.redhat.com/security/cve/CVE-2021-4040 (Vendor Advisory)
- issues.apache.org/jira/browse/ARTEMIS-3593 (Patch, Third Party Advisory)
- github.com/apache/activemq-artemis/pull/3871/commits (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-4040?
- CVE-2021-4040 is a medium-severity vulnerability in Apache Artemis, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2022-08-24.
- How severe is CVE-2021-4040?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-4040 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.