CVE-2018-3186 Denial of service in MySQL Server

Medium 4.9 Published 17 Oct 2018 Updated 2 Oct 2024

A high-privileged attacker can cause a complete denial of service in MySQL Server via the Optimizer component.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-3186?

CVE-2018-3186 is a medium-severity denial of service vulnerability in Netapp Oncommand Insight, published on 17 Oct 2018. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 8.0.12 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Which versions are affected by CVE-2018-3186?

It affects 5 products.

Products include Netapp Oncommand Insight, Netapp Oncommand Unified Manager, Netapp Oncommand Workflow Automation, Netapp Snapcenter, Oracle Mysql.

How do I fix CVE-2018-3186?

No fix has been published for CVE-2018-3186 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-2018-3186 being exploited?

There is no known exploitation of CVE-2018-3186 in the wild and no public exploit code.

All Netapp Oncommand Insight vulnerabilities

Sources

Also known as GHSA-fv5h-8c4w-qmhc.