APT before 1.0.9 does not "invalidate repository data" when moving from an unauthenticated to authenticated state, which allows remote attackers to have unspecified impact via crafted repository data.
| Software | From | Fixed in |
|---|---|---|
| debian / advanced_package_tool | 1.0.3 | 1.0.3.x |
| debian / advanced_package_tool | 1.0.7 | 1.0.7.x |