CVE-2020-5319 Denial of service in Unity
Remote unauthenticated attackers can cause a storage processor panic and denial of service by sending malformed SSH protocol sequences to Dell EMC Unity systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5319?
CVE-2020-5319 is a high-severity denial of service vulnerability in Dell Unity, published on 6 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Dell EMC Unity, Dell EMC Unity XT, and Dell EMC UnityVSA versions prior to 5.0.2.0.5.009 contain a Denial of Service vulnerability on NAS Server SSH implementation that is used to provide SFTP service on a NAS server. A remote unauthenticated attacker may potentially exploit this vulnerability and cause a Denial of Service (Storage Processor Panic) by sending an out of order SSH protocol sequence.
Weakness: CWE-129
Which versions are affected by CVE-2020-5319?
It affects 3 products.
Products include Dell Emc Unity Operating Environment, Dell Emc Unity Xt Operating Environment, Dell Emc Unityvsa Operating Environment.
How do I fix CVE-2020-5319?
No fix has been published for CVE-2020-5319 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-2020-5319 being exploited?
There is no known exploitation of CVE-2020-5319 in the wild and no public exploit code.
Other vulnerabilities in Dell Unity
Sources
Also known as GHSA-c2m8-8qv3-5rrj.