CVE-2018-2439 Denial of service in SAP Internet Graphics Server (IGS)

Medium 5.9 Published 10 Jul 2018 Updated 5 Aug 2024

Attackers can crash the SAP Internet Graphics Server by sending malformed data packets due to insufficient input validation in HTTP, RFC, and portwatcher components.

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-2018-2439?

CVE-2018-2439 is a medium-severity denial of service vulnerability in SAP Internet Graphics Server (IGS), published on 10 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The SAP Internet Graphics Server (IGS), 7.20, 7.20EXT, 7.45, 7.49, 7.53, has insufficient request validation (for example, where the request is validated for authenticity and validity) and under certain conditions, will process invalid requests. Several areas of the SAP Internet Graphics Server (IGS) did not require sufficient input validation. Namely, the SAP Internet Graphics Server (IGS) HTTP and RFC listener, SAP Internet Graphics Server (IGS) portwatcher when registering a portwatcher to the multiplexer and the SAP Internet Graphics Server (IGS) multiplexer had insufficient input validation and thus allowing a malformed data packet to cause a crash.

Weakness: CWE-20

Which versions are affected by CVE-2018-2439?

It affects 1 product.

Products include Sap Internet Graphics Server.

How do I fix CVE-2018-2439?

No fix has been published for CVE-2018-2439 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-2018-2439 being exploited?

There is no known exploitation of CVE-2018-2439 in the wild and no public exploit code.

Sources

Also known as GHSA-4pmw-67xf-m59m.