USN-4247-1

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Source
https://ubuntu.com/security/notices/USN-4247-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4247-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4247-1
Upstream
Related
Published
2020-01-22T18:15:12.328809Z
Modified
2025-10-13T04:35:02Z
Summary
python-apt vulnerabilities
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:16.04:LTS / python-apt

Package

Name
python-apt
Purl
pkg:deb/ubuntu/python-apt@1.1.0~beta1ubuntu0.16.04.7?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.0~beta1ubuntu0.16.04.7

Affected versions

1.*

1.0.1build1
1.0.1ubuntu2
1.1.0~beta1
1.1.0~beta1build1
1.1.0~beta1ubuntu0.16.04.1
1.1.0~beta1ubuntu0.16.04.2
1.1.0~beta1ubuntu0.16.04.4
1.1.0~beta1ubuntu0.16.04.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.7"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.7"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.7"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.7"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "cves": [
        {
            "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-2019-15795"
        },
        {
            "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"
        }
    ],
    "ecosystem": "Ubuntu:16.04:LTS"
}

Ubuntu:18.04:LTS / python-apt

Package

Name
python-apt
Purl
pkg:deb/ubuntu/python-apt@1.6.5ubuntu0.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.5ubuntu0.1

Affected versions

1.*

1.4.0~beta3build2
1.4.0~beta3ubuntu1
1.6.0~rc2ubuntu1
1.6.0~rc2ubuntu2
1.6.0
1.6.1
1.6.2
1.6.3
1.6.3ubuntu1
1.6.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "1.6.5ubuntu0.1"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "1.6.5ubuntu0.1"
        },
        {
            "binary_name": "python-apt-dev",
            "binary_version": "1.6.5ubuntu0.1"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "1.6.5ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "cves": [
        {
            "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-2019-15795"
        },
        {
            "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"
        }
    ],
    "ecosystem": "Ubuntu:18.04:LTS"
}