CVE-2020-29490 Denial of service in Unity

What is CVE-2020-29490?

CVE-2020-29490 is a high-severity denial of service vulnerability in Dell Unity, published on 5 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Dell EMC Unity, Unity XT, and UnityVSA versions prior to 5.0.4.0.5.012 contain a Denial of Service vulnerability on NAS Servers with NFS exports. A remote authenticated attacker could potentially exploit this vulnerability and cause Denial of Service (Storage Processor Panic) by sending specially crafted UDP requests.

Weakness: CWE-400

Which versions are affected by CVE-2020-29490?

It affects 3 products.

Products include Dell Emc Unity Operating Environment, Dell Emc Unity Vsa Operating Environment, Dell Emc Unity Xt Operating Environment.

How do I fix CVE-2020-29490?

No fix has been published for CVE-2020-29490 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-2020-29490 being exploited?

There is no known exploitation of CVE-2020-29490 in the wild and no public exploit code.

Other vulnerabilities in Dell Unity

• CVE-2021-36294 Auth bypass in VNX Control Station Critical 9.8
• CVE-2021-36288 Path traversal in VNX2 High 8.6
• CVE-2021-36289 Information disclosure in VNX Control Station High 7.8
• CVE-2019-3741 Information disclosure in Unity High 7.8
• CVE-2018-11064 Privilege escalation in Dell EMC Unity High 7.8

Sources

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

Also known as GHSA-fj54-mvm9-92fv.