CVE-2021-34301 Use after free in JT2Go
Attackers can execute arbitrary code by tricking users into opening malicious BMP files 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-2021-34301?
CVE-2021-34301 is a high-severity use after free 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 prior to performing further free operations on an object when parsing BMP files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13196)
Which versions are affected by CVE-2021-34301?
It affects 2 products.
Products include Siemens Jt2go, Siemens Teamcenter Visualization.
How do I fix CVE-2021-34301?
No fix has been published for CVE-2021-34301 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-34301 being exploited?
There is no known exploitation of CVE-2021-34301 in the wild and no public exploit code.
Other vulnerabilities in Siemens Jt2go
Sources
Also known as GHSA-fm88-5jvj-hhfm.