Description
A directory traversal bug was discovered when unpacking 3.0 (quilt) source packages, where the packaging tarball could contain the quilt database directory (.pc) with attacker controlled symlinks, where that in combination with patches that would fail to apply, could be used to make the code used to restore the backup files to either modify or remove the files pointed to by the attacker controlled symlinks.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Debian | dpkg | < 1.23.12 | 1.23.12 |
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 | dpkg | No fix yet | — |
| Debian 13 | dpkg | No fix yet | — |
| Debian 12 | dpkg | No fix yet | — |