CVE-2021-44442 Memory corruption in JT Utilities
An out-of-bounds write in the JTTK library allows attackers to execute arbitrary code via 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-2021-44442?
CVE-2021-44442 is a high-severity memory corruption 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 an out of bounds write past the fixed-length heap-based buffer while parsing specially crafted JT files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-14995)
Weakness: CWE-122
Which versions are affected by CVE-2021-44442?
It affects 2 products.
Products include Siemens Jt Open Toolkit, Siemens Jt Utilities.
How do I fix CVE-2021-44442?
No fix has been published for CVE-2021-44442 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-2021-44442 being exploited?
There is no known exploitation of CVE-2021-44442 in the wild and no public exploit code.
Other vulnerabilities in Siemens JT Utilities
Sources
Also known as GHSA-6fcc-5qwj-946f.