- Vulnerability/
- USN-4247-1
USN-4247-1: python-apt vulnerabilities
First published: Wed Jan 22 2020(Updated: )
It was discovered that python-apt would still use MD5 hashes to validate certain downloaded packages. If a remote attacker were able to perform a machine-in-the-middle attack, this flaw could potentially be used to install altered packages. (CVE-2019-15795) It was discovered that python-apt could install packages from untrusted repositories, contrary to expectations. (CVE-2019-15796)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/python-apt | <1.9.0ubuntu1.2 | 1.9.0ubuntu1.2 |
| Ubuntu Linux | =19.10 | |
| All of | ||
| ubuntu/python3-apt | <1.9.0ubuntu1.2 | 1.9.0ubuntu1.2 |
| Ubuntu Linux | =19.10 | |
| All of | ||
| ubuntu/python-apt | <1.8.5~ubuntu0.2 | 1.8.5~ubuntu0.2 |
| Ubuntu Linux | =19.04 | |
| All of | ||
| ubuntu/python3-apt | <1.8.5~ubuntu0.2 | 1.8.5~ubuntu0.2 |
| Ubuntu Linux | =19.04 | |
| All of | ||
| ubuntu/python-apt | <1.6.5ubuntu0.1 | 1.6.5ubuntu0.1 |
| Ubuntu Linux | =18.04 | |
| All of | ||
| ubuntu/python3-apt | <1.6.5ubuntu0.1 | 1.6.5ubuntu0.1 |
| Ubuntu Linux | =18.04 | |
| All of | ||
| ubuntu/python-apt | <1.1.0~beta1ubuntu0.16.04.7 | 1.1.0~beta1ubuntu0.16.04.7 |
| Ubuntu Linux | =16.04 | |
| All of | ||
| ubuntu/python3-apt | <1.1.0~beta1ubuntu0.16.04.7 | 1.1.0~beta1ubuntu0.16.04.7 |
| Ubuntu Linux | =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2019-15795
- https://ubuntu.com/security/CVE-2019-15796
- https://ubuntu.com/security/notices/{'id': 'USN-4247-3', 'packages': 'python-apt, python-apt-doc, python-apt-common, python-apt-dev, python3-apt'}
- https://launchpad.net/ubuntu/+source/python-apt/1.9.0ubuntu1.2
- https://launchpad.net/ubuntu/+source/python-apt/1.8.5~ubuntu0.2
- https://launchpad.net/ubuntu/+source/python-apt/1.6.5ubuntu0.1
- https://launchpad.net/ubuntu/+source/python-apt/1.1.0~beta1ubuntu0.16.04.7
- https://ubuntu.com/security/notices/USN-4247-1 (Advisory)
Frequently Asked Questions
What is the severity of USN-4247-1?
The severity of USN-4247-1 is considered important as it allows for potential remote package alteration.
How do I fix USN-4247-1?
To fix USN-4247-1, upgrade the python-apt or python3-apt package to the versions specified in the notice.
What versions of python-apt are affected by USN-4247-1?
USN-4247-1 affects python-apt versions prior to 1.9.0ubuntu1.2 on specific Ubuntu releases.
What is CVE-2019-15795 related to USN-4247-1?
CVE-2019-15795 is the identifier for the vulnerability that allows attackers to alter package installations.
What should I do if I'm unable to upgrade python-apt as per USN-4247-1?
If you cannot upgrade python-apt, consider implementing network measures to mitigate the risk of man-in-the-middle attacks.
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