| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/docker/docker | < 1.3.1 | 1.3.1 |
| docker-py | < 0.5.3 | 0.5.3 |
| docker | ≤ 1.3.0 | |
| docker-py | ≤ 0.5.3 |
Docker before 1.3.1 and docker-py before 0.5.3 fall back to HTTP when the HTTPS connection to the registry fails, which allows man-in-the-middle attackers to conduct downgrade attacks and obtain authentication and image data by leveraging a network position between the client and the registry to block HTTPS traffic.
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