Description
In text_to_glyphs in sushi-font-widget.c in gnome-font-viewer 3.34.0, there is a NULL pointer dereference while parsing a TTF font file that lacks a name section (due to a g_strconcat call that returns NULL).
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 | gnome-font-viewer | 3.34.0-2 | — |
| Debian 14 | gnome-sushi | 3.38.0-1 | — |
| Debian 13 | gnome-font-viewer | 3.34.0-2 | — |
| Debian 13 | gnome-sushi | 3.38.0-1 | — |
| Debian 12 | gnome-font-viewer | 3.34.0-2 | — |
| Debian 12 | gnome-sushi | 3.38.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gnome-sushi | No fix yet | — |
| Ubuntu 26.04 LTS | gnome-sushi | No fix yet | — |
| Ubuntu 25.10 | gnome-sushi | No fix yet | — |
| Ubuntu 24.04 LTS | gnome-sushi | No fix yet | — |
| Ubuntu 22.04 LTS | gnome-sushi | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | gnome-font-viewer | 3.34.0-2 | — |
| Ubuntu 20.04 LTS | gnome-sushi | No fix yet | — |
| Ubuntu 18.04 LTS | gnome-sushi +1 | No fix yet | — |
| Ubuntu 16.04 LTS | gnome-sushi +1 | No fix yet | — |