CVE-2021-44433 Use after free in JT Utilities
An attacker can execute arbitrary code by tricking a user into opening a specially crafted JT file using the vulnerable JTTK library.
- 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-2021-44433?
CVE-2021-44433 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 < V13.1.1.0), JTTK (All versions < V11.1.1.0). 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-14900)
Weakness: CWE-416
Which versions are affected by CVE-2021-44433?
It affects 2 products.
Products include Siemens Jt Open Toolkit, Siemens Jt Utilities.
How do I fix CVE-2021-44433?
No fix has been published for CVE-2021-44433 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-2021-44433 being exploited?
There is no known exploitation of CVE-2021-44433 in the wild and no public exploit code.
Other vulnerabilities in Siemens JT Utilities
Sources
Also known as GHSA-98f9-vw78-c4rg.