USN-4247-3

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Source
https://ubuntu.com/security/notices/USN-4247-3
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4247-3.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4247-3
Upstream
Related
Published
2020-01-23T15:11:16.264619Z
Modified
2025-10-13T04:35:02Z
Summary
python-apt vulnerabilities
Details

USN-4247-1 fixed several vulnerabilities in python-apt. This update provides the corresponding updates for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

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)

References

Affected packages

Ubuntu:Pro:14.04:LTS / python-apt

Package

Name
python-apt
Purl
pkg:deb/ubuntu/python-apt@0.9.3.5ubuntu3+esm2?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.9.3.5ubuntu3+esm2

Affected versions

0.*

0.8.9.1ubuntu1
0.9.0
0.9.1
0.9.1ubuntu1
0.9.3.2
0.9.3.2ubuntu2
0.9.3.3
0.9.3.3ubuntu1
0.9.3.4
0.9.3.4build1
0.9.3.5
0.9.3.5ubuntu1
0.9.3.5ubuntu2
0.9.3.5ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "0.9.3.5ubuntu3+esm2"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "0.9.3.5ubuntu3+esm2"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "0.9.3.5ubuntu3+esm2"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "0.9.3.5ubuntu3+esm2"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:14.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-15795",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2019-15796",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}