CVE-2022-21535 Denial of service in MySQL Server

Low 2.5 Published 19 Jul 2022 Updated 24 Sep 2024

An unauthenticated attacker with local access can cause a partial denial of service in MySQL Shell through difficult-to-exploit means requiring user interaction.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2022-21535?

CVE-2022-21535 is a low-severity denial of service vulnerability in Oracle Corporation MySQL Server, published on 19 Jul 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: General/Core Client). Supported versions that are affected are 8.0.28 and prior. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where MySQL Shell executes to compromise MySQL Shell. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Shell. CVSS 3.1 Base Score 2.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L).

Which versions are affected by CVE-2022-21535?

1 open source package ship an affected version, including mysql-shell. It affects 1 product.

Package	Affected	Fixed in
`mysql-shell` Bitnami	All versions	`8.0.29`

Products include Oracle Mysql Shell.

How do I fix CVE-2022-21535?

Upgrade mysql-shell to 8.0.29 or later.

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-2022-21535 being exploited?

There is no known exploitation of CVE-2022-21535 in the wild and no public exploit code.

Sources

Also known as BIT-mysql-shell-2022-21535, GHSA-wmc6-mxq3-q9c7.