CVE-2021-34297 Memory corruption in JT2Go

High 7.8 Published Updated

An attacker can execute arbitrary code by tricking a user into opening a malicious BMP file in Siemens JT2Go or Teamcenter Visualization.

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-2021-34297?

CVE-2021-34297 is a high-severity memory corruption vulnerability in Siemens Jt2go, 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 JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The BMP_Loader.dll library in affected applications lacks proper validation of user-supplied data when parsing BMP files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13059)

Weakness: CWE-20, CWE-787

Which versions are affected by CVE-2021-34297?

It affects 2 products.

Products include Siemens Jt2go, Siemens Teamcenter Visualization.

How do I fix CVE-2021-34297?

No fix has been published for CVE-2021-34297 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-34297 being exploited?

There is no known exploitation of CVE-2021-34297 in the wild and no public exploit code.

All Siemens Jt2go vulnerabilities

Sources

Also known as GHSA-5f3w-43f5-g5g2.

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