Description
unalz 0.53 allows user-assisted attackers to overwrite arbitrary files via an ALZ archive with ".." (dot dot) sequences in a filename.
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 | unalz | 0.55-1 | — |
| Debian 13 | unalz | 0.55-1 | — |
| Debian 12 | unalz | 0.55-1 | — |
References
- ADV-2006-0938 vdb-entry
- 20060313 Secunia Research: unalz Filename Handling mailing-list
- 17105 vdb-entry
- 23835 vdb-entry
- 19063 third-party-advisory
- 575 third-party-advisory
- 1015780 vdb-entry
- unalz-archive-directory-traversal(25171) vdb-entry
- http://secunia.com/secunia_research/2006-16/
- 20060313 Secunia Research: unalz Filename Handling Directory TraversalVulnerability mailing-list