CVE-2020-2933 Denial of service in MySQL Connectors

What is CVE-2020-2933?

CVE-2020-2933 is a low-severity denial of service vulnerability in Debian Debian Linux, published on 15 Apr 2020. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 5.1.48 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Connectors. CVSS 3.0 Base Score 2.2 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).

Which versions are affected by CVE-2020-2933?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Oracle Mysql Connector\/J.

How do I fix CVE-2020-2933?

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-2020-2933 being exploited?

There is no known exploitation of CVE-2020-2933 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as GHSA-cj4p-6gr4-7rwr, UBUNTU-CVE-2020-2933.