Description
The fbgs script in the fbi package 2.01-1.4, when the TMPDIR environment variable is not defined, allows local users to overwrite arbitrary files via a symlink attack on temporary files in /var/tmp/fbps-[PID].
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 | fbi | 2.05-1 | — |
| Debian 13 | fbi | 2.05-1 | — |
| Debian 12 | fbi | 2.05-1 | — |
| Debian 3.1 | fbi | 2.01-1.2sarge1 | DSA-1068-1 |
| Debian 3.0 | fbi | 1.23woody1 | DSA-1068-1 |
Advisories 1
- DSA-1068-1 fbi - insecure temporary file Debian Security (DSA / DLA) · Mar 9, 2026
References
- ADV-2006-1281 vdb-entry
- DSA-1068 vendor-advisory
- fbida-fbgs-tmpdir-symlink(25729) vdb-entry
- 17436 vdb-entry
- 20166 third-party-advisory
- 21459 third-party-advisory
- SUSE-SR:2006:019 vendor-advisory
- GLSA-200604-13 vendor-advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=361370
- 19559 third-party-advisory
- 19766 third-party-advisory