CVE-2020-4466 Denial of service in MQ for HPE NonStop

Medium 6.5 Published 20 Jul 2020 Updated 16 Sep 2024

A remote authenticated attacker can cause a denial of service in IBM MQ for HPE NonStop via a queue processing error.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-4466?

CVE-2020-4466 is a medium-severity denial of service vulnerability in IBM MQ for HPE NonStop, published on 20 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM MQ for HPE NonStop 8.0.4 and 8.1.0 could allow a remote authenticated attacker could cause a denial of service due to an error within the Queue processing function. IBM X-Force ID: 181563.

Which versions are affected by CVE-2020-4466?

It affects 1 product.

Products include Ibm Mq for Hpe Nonstop.

How do I fix CVE-2020-4466?

No fix has been published for CVE-2020-4466 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-2020-4466 being exploited?

There is no known exploitation of CVE-2020-4466 in the wild and no public exploit code.

Sources

Also known as GHSA-hwcv-f7qg-ch9g.