Irssi 1.1.x before 1.1.2 has a use after free when hidden lines are expired from the scroll buffer.
| Software | From | Fixed in |
|---|---|---|
| irssi / irssi | 1.1.0 | 1.1.2 |
| canonical / ubuntu_linux | 16.04 | 16.04.x |
| canonical / ubuntu_linux | 14.04 | 14.04.x |
| canonical / ubuntu_linux | 18.04 | 18.04.x |
| canonical / ubuntu_linux | 18.10 | 18.10.x |