CVE-2016-6620 Deserialization in n/a

Critical 9.8 Published 11 Dec 2016 Updated 6 Aug 2024

Unvalidated data passed to PHP unserialize in phpMyAdmin allows remote code execution via object instantiation and autoloading.

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

What is CVE-2016-6620?

CVE-2016-6620 is a critical unsafe deserialization vulnerability in Phpmyadmin Phpmyadmin, published on 11 Dec 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in phpMyAdmin. Some data is passed to the PHP unserialize() function without verification that it's valid serialized data. The unserialization can result in code execution because of the interaction with object instantiation and autoloading. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.

Weakness: CWE-502

Which versions are affected by CVE-2016-6620?

It affects 1 product.

Products include Phpmyadmin Phpmyadmin.

How do I fix CVE-2016-6620?

Upgrade to a fixed version.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2016-6620 being exploited?

There is no known exploitation of CVE-2016-6620 in the wild and no public exploit code.

All Phpmyadmin Phpmyadmin vulnerabilities

Sources

Also known as ALPINE-CVE-2016-6620, DEBIAN-CVE-2016-6620, GHSA-cq55-4q38-jxr8, UBUNTU-CVE-2016-6620.