CVE-2019-4049 Denial of service in MQ
A local user can cause a denial of service in IBM MQ by filling up the underlying filesystem via the error logging service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-4049?
CVE-2019-4049 is a medium-severity denial of service vulnerability in Ibm Mq, published on 20 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
IBM MQ 9.1.0.0, 9.1.0.1, 9.1.1, and 9.1.0.2 is vulnerable to a denial of service due to a local user being able to fill up the disk space of the underlying filesystem using the error logging service. IBM X-Force ID: 156398.
Weakness: CWE-400
Which versions are affected by CVE-2019-4049?
It affects 1 product.
Products include Ibm Mq.
How do I fix CVE-2019-4049?
No fix has been published for CVE-2019-4049 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-4049 being exploited?
There is no known exploitation of CVE-2019-4049 in the wild and no public exploit code.
Other vulnerabilities in Ibm Mq
- CVE-2026-10575 IBM MQ queue manager is vulnerable to remote code execution
- CVE-2026-11375 IBM MQ queue manager is vulnerable to remote code execution
- CVE-2026-11378 IBM MQ queue manager is vulnerable to remote code execution
- CVE-2022-22489 XML external entity in MQ
- CVE-2026-10027 IBM MQ queue manager is vulnerable to unauthenticated remote code execution
Sources
Also known as GHSA-xhm5-vcjw-g9vf.