Description
A cron job in fcheck before 2.7.59 allows local users to overwrite arbitrary files via a symlink attack on a temporary file.
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 | fcheck | 2.7.59-8 | — |
| Debian 13 | fcheck | 2.7.59-8 | — |
| Debian 12 | fcheck | 2.7.59-8 | — |
| Debian 3.1 | fcheck | 2.7.59-7sarge1 | DSA-1035-1 |
Advisories 1
- DSA-1035-1 fcheck - insecure temporary file Debian Security (DSA / DLA) · Mar 9, 2026
References
- 19675 third-party-advisory
- 17524 vdb-entry
- DSA-1035 vendor-advisory
- fcheck-tmpfile-symlink(25830) vdb-entry