CVE-2023-35969 Memory corruption in GTKWave
A heap-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-2023-35969?
CVE-2023-35969 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 heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 chain_table parsing 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 chain_table of `FST_BL_VCDATA` and `FST_BL_VCDATA_DYN_ALIAS` section types.
Which versions are affected by CVE-2023-35969?
It affects 1 product.
Products include Tonybybell Gtkwave.
How do I fix CVE-2023-35969?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-35969 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35969 exists.
Other vulnerabilities in Tonybybell Gtkwave
Sources
Also known as DEBIAN-CVE-2023-35969, GHSA-hp86-fc6r-wg46, UBUNTU-CVE-2023-35969.