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The vulnerability description explicitly names Version.fetch_binary(), Version.fetch_source() in apt/package.py and _fetch_archives() in apt/cache.py as functions that lacked hash signature verification. Multiple authoritative sources (CVE, GHSA, Ubuntu security notices) confirm these entry points failed to enforce cryptographic signature checks, which is directly tied to CWE-347. The functions' roles in package fetching operations make them logical points for this vulnerability.
| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| python-apt | pip | < 0.8.3ubuntu7.5 | 0.8.3ubuntu7.5 |
| python-apt | pip | >= 0.9.0, < 0.9.3.5ubuntu3 | 0.9.3.5ubuntu3 |
| python-apt | pip | >= 1.2.0, < 1.6.5ubuntu0.1 | 1.6.5ubuntu0.1 |
| python-apt | pip | >= 1.7.0, < 1.9.0ubuntu1.2 | 1.9.0ubuntu1.2 |
| python-apt | pip | >= 1.9.1, < 1.9.5 | 1.9.5 |
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