Description
Directory traversal vulnerability in munpack in mpack 1.5 and earlier allows remote attackers to create new files in the parent directory via a ../ (dot-dot) sequence in the filename to be extracted.
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 | mpack | 1.5-9 | — |
| Debian 13 | mpack | 1.5-9 | — |
| Debian 12 | mpack | 1.5-9 | — |
| Debian 3.0 | mpack | 1.5-7woody2 | DSA-141 |
Advisories 1
- DSA-141 mpack - buffer overflow Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-141 vendor-advisory
- 5386 vdb-entry
- munpack-dotdot-directory-traversal(9748) vdb-entry