CVE-2018-2561 Denial of service in HTTP Server

Medium 5.3 Published 18 Jan 2018 Updated 3 Oct 2024

Unauthenticated attackers can cause a partial denial of service in Oracle HTTP Server via network access.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-2561?

CVE-2018-2561 is a medium-severity denial of service vulnerability in Oracle Http Server, published on 18 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Oracle HTTP Server component of Oracle Fusion Middleware (subcomponent: Web Listener). Supported versions that are affected are 11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.2.0 and 12.2.1.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle HTTP Server. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Which versions are affected by CVE-2018-2561?

It affects 1 product.

Products include Oracle Http Server.

How do I fix CVE-2018-2561?

No fix has been published for CVE-2018-2561 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-2018-2561 being exploited?

There is no known exploitation of CVE-2018-2561 in the wild and no public exploit code.

All Oracle Http Server vulnerabilities

Sources

Also known as GHSA-hcwc-38vw-2h96.