CVE-2021-2438 Denial of service in Database - Enterprise Edition

Medium 4.3 Published 20 Jul 2021 Updated 25 Sep 2024

A low-privileged attacker can cause a partial denial of service in the Java VM component of Oracle Database 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: None listed

What is CVE-2021-2438?

CVE-2021-2438 is a medium-severity denial of service vulnerability in Oracle Corporation Database - Enterprise Edition, published on 20 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Vulnerability in the Java VM component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1 and 19c. Easily exploitable vulnerability allows low privileged attacker having Create Procedure privilege with network access via Oracle Net to compromise Java VM. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java VM. CVSS 3.1 Base Score 4.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).

Which versions are affected by CVE-2021-2438?

It affects 1 product.

Products include Oracle Java Virtual Machine.

How do I fix CVE-2021-2438?

No fix has been published for CVE-2021-2438 yet. Limit exposure of the affected software until one is available.

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-2021-2438 being exploited?

There is no known exploitation of CVE-2021-2438 in the wild and no public exploit code.

Sources

Also known as GHSA-vmp7-4vvc-hc9j.