GHSA-pj65-3pf6-c5q4
python-apt Does Not Check Hash Signature
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| PyPI | python-apt | < 0.8.3ubuntu7.5 | 0.8.3ubuntu7.5 |
| PyPI | python-apt | >= 0.9.0, < 0.9.3.5ubuntu3 | 0.9.3.5ubuntu3 |
| PyPI | python-apt | >= 1.2.0, < 1.6.5ubuntu0.1 | 1.6.5ubuntu0.1 |
| PyPI | python-apt | >= 1.7.0, < 1.9.0ubuntu1.2 | 1.9.0ubuntu1.2 |
| PyPI | python-apt | >= 1.9.1, < 1.9.5 | 1.9.5 |
Details
As written in the advisory (Markdown source, shown as plain text).
Python-apt doesn't check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn't be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.
References
External links from the advisory. They lead to third-party sites.