Multiple integer overflow vulnerabilities exist in the VZT vzt_rd_block_vch_decode dict parsing functionality of GTKWave 3.3.115. A specially crafted .vzt file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the integer overflow when num_time_ticks is zero.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2023-1815 | third party advisory exploit |
| https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html |