Description
updatejail in jailer 0.4 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/#####.updatejail 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 4.0 | jailer | 0.4-9+etch1 | DSA-1674-1 |
Advisories 1
- DSA-1674-1 jailer - denial of service Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-1674 vendor-advisory
- 32413 vdb-entry
- 32959 third-party-advisory
- [debian-devel] 20080811 Re: Possible mass bug filing: The possibility of attack with the help of symlinks in some Debian packages mailing-list
- 32943 third-party-advisory