USN-4668-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4668-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4668-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4668-1
Upstream
Related
Published
2020-12-09T16:36:45Z
Modified
2026-04-22T10:10:52.571622Z
Summary
python-apt vulnerability
Details

Kevin Backhouse discovered that python-apt incorrectly handled resources. A local attacker could possibly use this issue to cause python-apt to consume resources, leading to a denial of service.

References

Affected packages

Ubuntu:16.04:LTS / python-apt

Package

Name
python-apt
Purl
pkg:deb/ubuntu/python-apt@1.1.0~beta1ubuntu0.16.04.10?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.1.0~beta1ubuntu0.16.04.10

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
1.1.0~beta1ubuntu0.16.04.7
1.1.0~beta1ubuntu0.16.04.8
1.1.0~beta1ubuntu0.16.04.9

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.10"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.10"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "1.1.0~beta1ubuntu0.16.04.10"
        }
    ]
}

Database specific

cves_map 
{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-27351",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4668-1.json"

Ubuntu:18.04:LTS / python-apt

Package

Name
python-apt
Purl
pkg:deb/ubuntu/python-apt@1.6.5ubuntu0.4?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.5ubuntu0.4

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
1.6.5ubuntu0.1
1.6.5ubuntu0.2
1.6.5ubuntu0.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "1.6.5ubuntu0.4"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "1.6.5ubuntu0.4"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "1.6.5ubuntu0.4"
        }
    ]
}

Database specific

cves_map 
{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-27351",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4668-1.json"

Ubuntu:20.04:LTS / python-apt

Package

Name
python-apt
Purl
pkg:deb/ubuntu/python-apt@2.0.0ubuntu0.20.04.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.0.0ubuntu0.20.04.2

Affected versions

1.*
1.9.0ubuntu1
1.9.0ubuntu3
1.9.0ubuntu5
1.9.3ubuntu2
1.9.5
1.9.5build1
1.9.7
1.9.8
1.9.10
2.*
2.0.0
2.0.0ubuntu0.20.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python-apt",
            "binary_version": "2.0.0ubuntu0.20.04.2"
        },
        {
            "binary_name": "python-apt-common",
            "binary_version": "2.0.0ubuntu0.20.04.2"
        },
        {
            "binary_name": "python3-apt",
            "binary_version": "2.0.0ubuntu0.20.04.2"
        }
    ]
}

Database specific

cves_map 
{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-27351",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4668-1.json"