CVE-2021-44447 Use after free in JT Utilities
A use-after-free vulnerability in the Siemens JTTK library allows attackers to execute arbitrary code by tricking users into opening specially crafted JT files.
- 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-2021-44447?
CVE-2021-44447 is a high-severity use after free vulnerability in Siemens JT Utilities, published on 14 Dec 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 < V13.0.3.0), JTTK (All versions < V11.0.3.0). JTTK library in affected products contains a use-after-free vulnerability that could be triggered while parsing specially crafted JT files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-14911)
Weakness: CWE-416
Which versions are affected by CVE-2021-44447?
It affects 2 products.
Products include Siemens Jt Open Toolkit, Siemens Jt Utilities.
How do I fix CVE-2021-44447?
No fix has been published for CVE-2021-44447 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-2021-44447 being exploited?
There is no known exploitation of CVE-2021-44447 in the wild and no public exploit code.
Other vulnerabilities in Siemens JT Utilities
Sources
Also known as GHSA-prj9-vfhq-9g4m.