CVE-2019-13542 Null dereference in 3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server

Medium 6.5 Published Updated

An attacker with a trusted OPC UA client can cause a denial of service in CODESYS V3 OPC UA Server via crafted requests triggering a null pointer dereference.

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-2019-13542?

CVE-2019-13542 is a medium-severity vulnerability in 3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, published on 17 Sep 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests from a trusted OPC UA client that cause a NULL pointer dereference, which may trigger a denial-of-service condition.

Weakness: CWE-476

Which versions are affected by CVE-2019-13542?

It affects 10 products.

Products include Codesys Control for Beaglebone, Codesys Control for Empc-A\/Imx6, Codesys Control for Iot2000, Codesys Control for Pfc100, Codesys Control for Pfc200, Codesys Control for Raspberry Pi and 4 more.

How do I fix CVE-2019-13542?

No fix has been published for CVE-2019-13542 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-13542 being exploited?

There is no known exploitation of CVE-2019-13542 in the wild and no public exploit code.

Sources

Also known as GHSA-87r9-pj76-c2hq.

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