CVE-2016-8327 Denial of service in MySQL Server

What is CVE-2016-8327?

CVE-2016-8327 is a medium-severity denial of service vulnerability in Oracle Mysql, published on 27 Jan 2017. 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: Replication). Supported versions that are affected are 5.6.34 and earlier and 5.7.16 and earlier. Difficult to exploit 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 v3.0 Base Score 4.4 (Availability impacts).

Which versions are affected by CVE-2016-8327?

It affects 1 product.

Products include Oracle Mysql.

How do I fix CVE-2016-8327?

Upgrade to a fixed version.

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-2016-8327 being exploited?

There is no known exploitation of CVE-2016-8327 in the wild and no public exploit code.

Other vulnerabilities in Oracle Mysql

• CVE-2016-0639 Auth bypass in n/a Critical 9.8
• CVE-2003-0150 Privilege escalation in n/a Critical 9.0
• CVE-2005-2572 Denial of service in n/a High 8.5
• CVE-2020-14878 Auth bypass in MySQL Server High 8.0
• CVE-2002-0969 Memory corruption in n/a High 7.8

All Oracle Mysql vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6v49-7fm7-r439, UBUNTU-CVE-2016-8327.