CVE-2023-38649 Memory corruption in GTKWave
An attacker can execute arbitrary code by tricking a user into opening a malicious VZT file in GTKWave due to an out-of-bounds write.
- 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
- Available
What is CVE-2023-38649?
CVE-2023-38649 is a high-severity memory corruption vulnerability in Tonybybell Gtkwave, published on 8 Jan 2024. 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
Multiple out-of-bounds write vulnerabilities exist in the VZT vzt_rd_get_facname decompression functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the out-of-bounds write perfomed by the string copy loop.
Which versions are affected by CVE-2023-38649?
It affects 1 product.
Products include Tonybybell Gtkwave.
How do I fix CVE-2023-38649?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-38649 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38649 exists.
Other vulnerabilities in Tonybybell Gtkwave
Sources
Also known as DEBIAN-CVE-2023-38649, GHSA-x9j3-j6j9-8j5g, UBUNTU-CVE-2023-38649.