CVE-2021-26989 Denial of service in Clustered Data ONTAP

What is CVE-2021-26989?

CVE-2021-26989 is a medium-severity denial of service vulnerability in Clustered Data ONTAP, published on 4 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Clustered Data ONTAP versions prior to 9.3P21, 9.5P16, 9.6P12, 9.7P9 and 9.8 are susceptible to a vulnerability which could allow a remote authenticated attacker to cause a Denial of Service (DoS) on clustered Data ONTAP configured for SMB access.

Which versions are affected by CVE-2021-26989?

It affects 1 product.

Products include Netapp Data Ontap.

How do I fix CVE-2021-26989?

No fix has been published for CVE-2021-26989 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-2021-26989 being exploited?

There is no known exploitation of CVE-2021-26989 in the wild and no public exploit code.

Other vulnerabilities in Clustered Data ONTAP

• CVE-2008-3349 Auth bypass in n/a Critical 10.0
• CVE-2015-7746 Auth bypass in n/a Critical 9.8
• CVE-2019-5502 Weak cryptography in Data ONTAP operating in 7-Mode Critical 9.1
• CVE-2016-5374 Missing authorization in n/a High 8.8
• CVE-2015-8322 Code injection in n/a High 8.8

Sources

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

Also known as GHSA-g5xj-292f-45cf.