CVE-2020-6867 Denial of service in ZENIC ONE R22b
Frequent RPC calls under heavy traffic cause long unresponsiveness and memory overflow in ZTE SDON controllers, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-6867?
CVE-2020-6867 is a medium-severity denial of service vulnerability in ZENIC ONE R22b, published on 30 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ZTE's SDON controller is impacted by the resource management error vulnerability. When RPC is frequently called by other applications in the case of mass traffic data in the system, it will result in no response for a long time and memory overflow risk. This affects: ZENIC ONE R22b versions V16.19.10P02SP002 and V16.19.10P02SP005.
Weakness: CWE-119
Which versions are affected by CVE-2020-6867?
It affects 1 product.
Products include Zte Zenic One R22b.
How do I fix CVE-2020-6867?
No fix has been published for CVE-2020-6867 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-2020-6867 being exploited?
There is no known exploitation of CVE-2020-6867 in the wild and no public exploit code.
Sources
Also known as GHSA-w2gh-fr9p-56v5.