CVE-2023-35702 Memory corruption in GTKWave
A stack-based buffer overflow in GTKWave allows arbitrary code execution when a user opens a maliciously crafted .fst file.
- 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-2023-35702?
CVE-2023-35702 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 stack-based buffer overflow vulnerabilities exist in the FST LEB128 varint functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the fstReaderVarint32 function.
Which versions are affected by CVE-2023-35702?
It affects 1 product.
Products include Tonybybell Gtkwave.
How do I fix CVE-2023-35702?
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-2023-35702 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35702 exists.
Other vulnerabilities in Tonybybell Gtkwave
Sources
Also known as DEBIAN-CVE-2023-35702, GHSA-h2f9-xfxp-2rvx, UBUNTU-CVE-2023-35702.