Description
Xfce Thunar 1.6.15, when Xfce 4.12 is used, mishandles the IBus-Unikey input method for file searches within File Manager, leading to an out-of-bounds read and SEGV. This could potentially be exploited by an arbitrary local user who creates files in /tmp before the victim uses this input method.
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 | thunar | No fix yet | — |
| Debian 13 | thunar | No fix yet | — |
| Debian 12 | thunar | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | thunar | No fix yet | — |
| Ubuntu 26.04 LTS | thunar | No fix yet | — |
| Ubuntu 25.10 | thunar | No fix yet | — |
| Ubuntu 24.04 LTS | thunar | No fix yet | — |
| Ubuntu 22.04 LTS | thunar | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | thunar | No fix yet | — |
| Ubuntu 18.04 LTS | thunar | No fix yet | — |
| Ubuntu 16.04 LTS | thunar | No fix yet | — |