Description
Flexbackup 1.2.1 and earlier allows local users to overwrite files and execute code via a symlink attack on temporary files. NOTE: the raw source referenced an incorrect candidate number; this is the correct number to use.
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 11 | flexbackup | 1.2.1-3 | — |
| Debian 3.1 | flexbackup | 1.2.1-2sarge1 | DSA-1216-1 |
Advisories 1
- DSA-1216-1 flexbackup Debian Security (DSA / DLA) · Mar 9, 2026
References
- 20051017 flexbackup default config insecure temporary file creation mailing-list
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=334350
- http://www.zataz.net/adviso/flexbackup-09192005.txt
- DSA-1216 vendor-advisory
- 17209 third-party-advisory
- 23008 third-party-advisory
- 1015068 vdb-entry