CVE-2022-21556 Denial of service in MySQL Server

Medium 6.5 Published 19 Jul 2022 Updated 24 Sep 2024

High-privileged attackers can modify critical data or 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: Available

What is CVE-2022-21556?

CVE-2022-21556 is a medium-severity denial of service vulnerability in Netapp Active Iq Unified Manager, published on 19 Jul 2022. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.28 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 creation, deletion or modification access to critical data or all MySQL Server accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H).

Which versions are affected by CVE-2022-21556?

It affects 5 products.

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

How do I fix CVE-2022-21556?

Apply the vendor's patch.

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-2022-21556 being exploited?

There is no known exploitation of CVE-2022-21556 in the wild and no public exploit code.

All Netapp Active Iq Unified Manager vulnerabilities

Sources

Also known as GHSA-w7mf-c4fv-c7rx, UBUNTU-CVE-2022-21556.