UBUNTU-CVE-2019-16056

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Source
https://ubuntu.com/security/CVE-2019-16056
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16056.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2019-16056
Upstream
Downstream
Related
Published
2019-09-06T18:15:00Z
Modified
2025-09-08T16:45:35Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.

References

Affected packages

Ubuntu:16.04:LTS

python2.7

Package

Name
python2.7
Purl
pkg:deb/ubuntu/python2.7@2.7.12-1ubuntu0~16.04.9?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7.12-1ubuntu0~16.04.9

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "idle-python2.7"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "libpython2.7"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "libpython2.7-dev"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "libpython2.7-minimal"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "libpython2.7-stdlib"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "libpython2.7-testsuite"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "python2.7"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "python2.7-dev"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "python2.7-examples"
        },
        {
            "binary_version": "2.7.12-1ubuntu0~16.04.9",
            "binary_name": "python2.7-minimal"
        }
    ],
    "availability": "No subscription required"
}

python3.5

Package

Name
python3.5
Purl
pkg:deb/ubuntu/python3.5@3.5.2-2ubuntu0~16.04.9?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.2-2ubuntu0~16.04.9

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "idle-python3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "libpython3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "libpython3.5-dev"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "libpython3.5-minimal"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "libpython3.5-stdlib"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "libpython3.5-testsuite"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "python3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "python3.5-dev"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "python3.5-examples"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "python3.5-minimal"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.9",
            "binary_name": "python3.5-venv"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS

python2.7

Package

Name
python2.7
Purl
pkg:deb/ubuntu/python2.7@2.7.15-4ubuntu4~18.04.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7.15-4ubuntu4~18.04.2

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "idle-python2.7"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "libpython2.7"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "libpython2.7-dev"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "libpython2.7-minimal"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "libpython2.7-stdlib"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "libpython2.7-testsuite"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "python2.7"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "python2.7-dev"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "python2.7-examples"
        },
        {
            "binary_version": "2.7.15-4ubuntu4~18.04.2",
            "binary_name": "python2.7-minimal"
        }
    ],
    "availability": "No subscription required"
}

python3.6

Package

Name
python3.6
Purl
pkg:deb/ubuntu/python3.6@3.6.8-1~18.04.3?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6.8-1~18.04.3

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "idle-python3.6"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "libpython3.6"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "libpython3.6-dev"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "libpython3.6-minimal"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "libpython3.6-stdlib"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "libpython3.6-testsuite"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "python3.6"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "python3.6-dev"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "python3.6-examples"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "python3.6-minimal"
        },
        {
            "binary_version": "3.6.8-1~18.04.3",
            "binary_name": "python3.6-venv"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:Pro:14.04:LTS

python2.7

Package

Name
python2.7
Purl
pkg:deb/ubuntu/python2.7@2.7.6-8ubuntu0.6+esm3?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+esm3

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "idle-python2.7"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "libpython2.7"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "libpython2.7-dev"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "libpython2.7-minimal"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "libpython2.7-stdlib"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "libpython2.7-testsuite"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "python2.7"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "python2.7-dev"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "python2.7-examples"
        },
        {
            "binary_version": "2.7.6-8ubuntu0.6+esm3",
            "binary_name": "python2.7-minimal"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

python3.4

Package

Name
python3.4
Purl
pkg:deb/ubuntu/python3.4@3.4.3-1ubuntu1~14.04.7+esm4?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+esm4

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "idle-python3.4"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "libpython3.4"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "libpython3.4-dev"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "libpython3.4-minimal"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "libpython3.4-stdlib"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "libpython3.4-testsuite"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "python3.4"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "python3.4-dev"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "python3.4-examples"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "python3.4-minimal"
        },
        {
            "binary_version": "3.4.3-1ubuntu1~14.04.7+esm4",
            "binary_name": "python3.4-venv"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

python3.5

Package

Name
python3.5
Purl
pkg:deb/ubuntu/python3.5@3.5.2-2ubuntu0~16.04.4~14.04.1+esm1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.2-2ubuntu0~16.04.4~14.04.1+esm1

Affected versions

3.*

3.5.2-2ubuntu0~16.04.4~14.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "idle-python3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5-dev"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5-minimal"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5-stdlib"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "libpython3.5-testsuite"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5-dev"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5-examples"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5-minimal"
        },
        {
            "binary_version": "3.5.2-2ubuntu0~16.04.4~14.04.1+esm1",
            "binary_name": "python3.5-venv"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}