CVE-2018-13441 Null dereference in n/a

Medium 5.5 Published 12 Jul 2018 Updated 5 Aug 2024

A local attacker can cause a denial of service in Nagios Core by sending a crafted payload to the UNIX socket, triggering a NULL pointer dereference.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2018-13441?

CVE-2018-13441 is a medium-severity vulnerability in n/a, published on 12 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

qh_help in Nagios Core version 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attacker to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket.

Weakness: CWE-476

Which versions are affected by CVE-2018-13441?

It affects 1 product.

Products include Nagios Nagios.

How do I fix CVE-2018-13441?

Upgrade to a fixed version.

Is CVE-2018-13441 being exploited?

There is no known exploitation of CVE-2018-13441 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as DEBIAN-CVE-2018-13441, GHSA-vcwh-ghpm-79h9.