Description
Multiple use-after-free vulnerabilities exist in the VCD get_vartoken realloc functionality of GTKWave 3.3.115. A specially crafted .vcd file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the use-after-free when triggered via the GUI's interactive VCD parsing code.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GTKWave | GTKWave | 3.3.115 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gtkwave | 3.3.118-0.1 | — |
| Debian 13 | gtkwave | 3.3.118-0.1 | — |
| Debian 12 | gtkwave | 3.3.118-0.1~deb12u1 | DSA-5653-1 |
| Debian 11 | gtkwave | 3.3.104+really3.3.118-0+deb11u1 | DSA-5653-1 |
| Debian 10 | gtkwave | 3.3.98+really3.3.118-0+deb10u1 | DLA-3785-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gtkwave | No fix yet | — |
| Ubuntu 26.04 LTS | gtkwave | No fix yet | — |
| Ubuntu 25.10 | gtkwave | No fix yet | — |
| Ubuntu 24.04 LTS | gtkwave | No fix yet | — |
| Ubuntu 22.04 LTS | gtkwave | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | gtkwave | No fix yet | — |
| Ubuntu 18.04 LTS | gtkwave | No fix yet | — |
| Ubuntu 16.04 LTS | gtkwave | No fix yet | — |
Advisories 2
- DSA-5653-1 gtkwave - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3785-1 gtkwave - security update Debian Security (DSA / DLA) · Mar 9, 2026