USN-4333-1

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Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4333-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4333-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4333-1
Upstream
Related
Published
2020-04-21T12:15:21.889423Z
Modified
2025-10-13T04:35:06Z
Summary
python2.7, python3.4, python3.5, python3.6, python3.7 vulnerabilities
Details

It was discovered that Python incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-18348)

It was discovered that Python incorrectly handled certain HTTP requests. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-8492)

References

Affected packages

Ubuntu:16.04:LTS

python2.7

Package

Name
python2.7
Purl
pkg:deb/ubuntu/python2.7@2.7.12-1ubuntu0~16.04.11?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7.12-1ubuntu0~16.04.11

Affected versions

2.*

2.7.10-4ubuntu1
2.7.10-4ubuntu2
2.7.11-2
2.7.11-3
2.7.11-4
2.7.11-6
2.7.11-7
2.7.11-7ubuntu1
2.7.12-1~16.04
2.7.12-1ubuntu0~16.04.1
2.7.12-1ubuntu0~16.04.2
2.7.12-1ubuntu0~16.04.3
2.7.12-1ubuntu0~16.04.4
2.7.12-1ubuntu0~16.04.8
2.7.12-1ubuntu0~16.04.9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idle-python2.7",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "libpython2.7",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "libpython2.7-dev",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "libpython2.7-minimal",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "libpython2.7-stdlib",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "libpython2.7-testsuite",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "python2.7",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "python2.7-dev",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "python2.7-examples",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        },
        {
            "binary_name": "python2.7-minimal",
            "binary_version": "2.7.12-1ubuntu0~16.04.11"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-18348",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-8492",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

python3.5

Package

Name
python3.5
Purl
pkg:deb/ubuntu/python3.5@3.5.2-2ubuntu0~16.04.10?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.2-2ubuntu0~16.04.10

Affected versions

3.*

3.5.0-3
3.5.0-3ubuntu1
3.5.1~rc1-2ubuntu1
3.5.1-1
3.5.1-2
3.5.1-3
3.5.1-5
3.5.1-6ubuntu1
3.5.1-6ubuntu2
3.5.1-9ubuntu1
3.5.1-10
3.5.2-2~16.01
3.5.2-2~16.04
3.5.2-2ubuntu0~16.04.1
3.5.2-2ubuntu0~16.04.2
3.5.2-2ubuntu0~16.04.3
3.5.2-2ubuntu0~16.04.4
3.5.2-2ubuntu0~16.04.5
3.5.2-2ubuntu0~16.04.8
3.5.2-2ubuntu0~16.04.9

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idle-python3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "libpython3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "libpython3.5-dev",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "libpython3.5-minimal",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "libpython3.5-stdlib",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "libpython3.5-testsuite",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "python3.5",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "python3.5-dev",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "python3.5-examples",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "python3.5-minimal",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        },
        {
            "binary_name": "python3.5-venv",
            "binary_version": "3.5.2-2ubuntu0~16.04.10"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-18348",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-8492",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:18.04:LTS

python2.7

Package

Name
python2.7
Purl
pkg:deb/ubuntu/python2.7@2.7.17-1~18.04ubuntu1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7.17-1~18.04ubuntu1

Affected versions

2.*

2.7.14-2ubuntu2
2.7.14-4
2.7.14-6
2.7.14-7
2.7.14-8
2.7.15~rc1-1
2.7.15~rc1-1ubuntu0.1
2.7.15-4ubuntu4~18.04
2.7.15-4ubuntu4~18.04.1
2.7.15-4ubuntu4~18.04.2
2.7.17-1~18.04

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idle-python2.7",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython2.7",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython2.7-dev",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython2.7-minimal",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython2.7-stdlib",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython2.7-testsuite",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "python2.7",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "python2.7-dev",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "python2.7-examples",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        },
        {
            "binary_name": "python2.7-minimal",
            "binary_version": "2.7.17-1~18.04ubuntu1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-18348",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-8492",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

python3.6

Package

Name
python3.6
Purl
pkg:deb/ubuntu/python3.6@3.6.9-1~18.04ubuntu1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.9-1~18.04ubuntu1

Affected versions

3.*

3.6.3-1ubuntu1
3.6.4~rc1-1
3.6.4~rc1-2
3.6.4-1
3.6.4-2
3.6.4-3build1
3.6.4-4
3.6.5~rc1-1
3.6.5-3
3.6.6-1~18.04
3.6.7-1~18.04
3.6.8-1~18.04.1
3.6.8-1~18.04.2
3.6.8-1~18.04.3
3.6.9-1~18.04

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idle-python3.6",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython3.6",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython3.6-dev",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython3.6-minimal",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython3.6-stdlib",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "libpython3.6-testsuite",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "python3.6",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "python3.6-dev",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "python3.6-examples",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "python3.6-minimal",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        },
        {
            "binary_name": "python3.6-venv",
            "binary_version": "3.6.9-1~18.04ubuntu1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-18348",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-8492",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:Pro:14.04:LTS

python2.7

Package

Name
python2.7
Purl
pkg:deb/ubuntu/python2.7@2.7.6-8ubuntu0.6+esm5?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7.6-8ubuntu0.6+esm5

Affected versions

2.*

2.7.5-8ubuntu3
2.7.5-8ubuntu4
2.7.6-2
2.7.6-2ubuntu1
2.7.6-3
2.7.6-3ubuntu1
2.7.6-4
2.7.6-4ubuntu1
2.7.6-5
2.7.6-7
2.7.6-8
2.7.6-8ubuntu0.2
2.7.6-8ubuntu0.3
2.7.6-8ubuntu0.4
2.7.6-8ubuntu0.5
2.7.6-8ubuntu0.6+esm2
2.7.6-8ubuntu0.6+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idle-python2.7",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "libpython2.7",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "libpython2.7-dev",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "libpython2.7-minimal",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "libpython2.7-stdlib",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "libpython2.7-testsuite",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "python2.7",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "python2.7-dev",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "python2.7-examples",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        },
        {
            "binary_name": "python2.7-minimal",
            "binary_version": "2.7.6-8ubuntu0.6+esm5"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:14.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-18348",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-8492",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

python3.4

Package

Name
python3.4
Purl
pkg:deb/ubuntu/python3.4@3.4.3-1ubuntu1~14.04.7+esm6?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4.3-1ubuntu1~14.04.7+esm6

Affected versions

3.*

3.4~b1-0ubuntu3
3.4~b1-4ubuntu4
3.4~b1-4ubuntu6
3.4~b1-5ubuntu2
3.4~b2-1
3.4~b3-1ubuntu1
3.4~rc1-1build1
3.4~rc2-1
3.4~rc3-0ubuntu1
3.4.0-1
3.4.0-2ubuntu1
3.4.0-2ubuntu1.1
3.4.3-1ubuntu1~14.04.1
3.4.3-1ubuntu1~14.04.3
3.4.3-1ubuntu1~14.04.4
3.4.3-1ubuntu1~14.04.5
3.4.3-1ubuntu1~14.04.6
3.4.3-1ubuntu1~14.04.7
3.4.3-1ubuntu1~14.04.7+esm2
3.4.3-1ubuntu1~14.04.7+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "idle-python3.4",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "libpython3.4",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "libpython3.4-dev",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "libpython3.4-minimal",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "libpython3.4-stdlib",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "libpython3.4-testsuite",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "python3.4",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "python3.4-dev",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "python3.4-examples",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "python3.4-minimal",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        },
        {
            "binary_name": "python3.4-venv",
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm6"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:14.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-18348",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-8492",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}