CVE-2020-4890 Denial of service in Spectrum Scale

What is CVE-2020-4890?

CVE-2020-4890 is a medium-severity denial of service vulnerability in Ibm Spectrum Scale, published on 16 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM Spectrum Scale 5.0.0 through 5.0.5.5 and 5.1.0 through 5.1.0.2 could allow a local user with a valid role to the REST API to cause a denial of service due to weak or absense of rate limiting. IBM X-Force ID: 190973.

Which versions are affected by CVE-2020-4890?

It affects 1 product.

Products include Ibm Spectrum Scale.

How do I fix CVE-2020-4890?

No fix has been published for CVE-2020-4890 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-2020-4890 being exploited?

There is no known exploitation of CVE-2020-4890 in the wild and no public exploit code.

Other vulnerabilities in Ibm Spectrum Scale

• CVE-2019-4715 Command injection in Spectrum Scale High 8.8
• CVE-2021-29740 Other in Spectrum Scale High 8.4
• CVE-2019-4558 Privilege escalation in Spectrum Scale High 8.1
• CVE-2020-4217 Denial of service in Spectrum Scale High 7.5
• CVE-2020-4273 Command injection in Spectrum Scale High 7.4

All Ibm Spectrum Scale vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-phgx-p86h-27qm.