CVE-2021-34294 Memory corruption in JT2Go
An out-of-bounds read in the GIF parser allows attackers to execute arbitrary code via malicious files in Siemens visualization tools.
- 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-2021-34294?
CVE-2021-34294 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 Gif_loader.dll library in affected applications lacks proper validation of user-supplied data when parsing GIF files. This could result in an out of bounds read past the end of an allocated buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13023
Which versions are affected by CVE-2021-34294?
It affects 2 products.
Products include Siemens Jt2go, Siemens Teamcenter Visualization.
How do I fix CVE-2021-34294?
No fix has been published for CVE-2021-34294 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-2021-34294 being exploited?
There is no known exploitation of CVE-2021-34294 in the wild and no public exploit code.
Other vulnerabilities in Siemens Jt2go
Sources
Also known as GHSA-6h9x-wrvr-pqqq.