CVE-2019-2800 Denial of service in MySQL Server

High 7.1 Published 23 Jul 2019 Updated 1 Oct 2024

A low-privileged attacker can cause a complete denial of service and modify data in MySQL Server via network access.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2019-2800?

CVE-2019-2800 is a high-severity denial of service vulnerability in Oracle Mysql, published on 23 Jul 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Replication). Supported versions that are affected are 8.0.16 and prior. Easily exploitable vulnerability allows low 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.0 Base Score 7.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H).

Which versions are affected by CVE-2019-2800?

It affects 6 products.

Products include Oracle Mysql, Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Tus, Redhat Software Collections.

How do I fix CVE-2019-2800?

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-2019-2800 being exploited?

There is no known exploitation of CVE-2019-2800 in the wild and no public exploit code.

All Oracle Mysql vulnerabilities

Sources

Also known as GHSA-jqgr-wvq9-hgpr.