CVE-2021-33713 Denial of service in JT Utilities

Medium 5.5 Published Updated

An attacker can cause a denial-of-service condition in Siemens JT Utilities by providing a specially crafted JT file that triggers a crash.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-33713?

CVE-2021-33713 is a medium-severity denial of service vulnerability in Siemens JT Utilities, published on 13 Jul 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A vulnerability has been identified in JT Utilities (All versions < V13.0.2.0). When parsing specially crafted JT files, a hash function is called with an incorrect argument leading the application to crash. An attacker could leverage this vulnerability to cause a Denial-of-Service condition in the application.

Weakness: CWE-688

Which versions are affected by CVE-2021-33713?

It affects 1 product.

Products include Siemens Jt Utilities.

How do I fix CVE-2021-33713?

No fix has been published for CVE-2021-33713 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-2021-33713 being exploited?

There is no known exploitation of CVE-2021-33713 in the wild and no public exploit code.

Sources

Also known as GHSA-ggvg-2x6j-4xqq.

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