CVE-2016-8318 Denial of service in MySQL Server

Medium 6.8 Published 27 Jan 2017 Updated 9 Oct 2024

A low-privileged attacker can cause a complete denial of service in MySQL Server via network access, requiring human interaction.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2016-8318?

CVE-2016-8318 is a medium-severity denial of service vulnerability in Oracle Mysql, published on 27 Jan 2017. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Security: Encryption). Supported versions that are affected are 5.6.34 and earlier and 5.7.16 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in MySQL Server, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS v3.0 Base Score 6.8 (Availability impacts).

Which versions are affected by CVE-2016-8318?

It affects 1 product.

Products include Oracle Mysql.

How do I fix CVE-2016-8318?

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-2016-8318 being exploited?

There is no known exploitation of CVE-2016-8318 in the wild and no public exploit code.

All Oracle Mysql vulnerabilities

Sources

Also known as GHSA-h7ch-gxfm-c596, UBUNTU-CVE-2016-8318.