CVE-2020-4925 Denial of service in Spectrum Scale

Medium 6.2 Published Updated

A non-root user can overflow the mmfsd daemon with requests, causing a denial of service for other users in IBM Spectrum Scale.

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-2020-4925?

CVE-2020-4925 is a medium-severity denial of service vulnerability in Ibm Spectrum Scale, published on 1 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A security vulnerability in the Spectrum Scale 5.0 and 5.1 allows a non-root user to overflow the mmfsd daemon with requests and preventing the daemon to service other requests. IBM X-Force ID: 191599.

Which versions are affected by CVE-2020-4925?

It affects 1 product.

Products include Ibm Spectrum Scale.

How do I fix CVE-2020-4925?

No fix has been published for CVE-2020-4925 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-2020-4925 being exploited?

There is no known exploitation of CVE-2020-4925 in the wild and no public exploit code.

All Ibm Spectrum Scale vulnerabilities

Sources

Also known as GHSA-x68f-c227-67vj.

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