CVE-2019-16056

Source
https://cve.org/CVERecord?id=CVE-2019-16056
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16056.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-16056
Aliases
Downstream
Related
Published
2019-09-06T18:15:15.443Z
Modified
2026-03-15T22:31:01.547808Z
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
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

Git / github.com/python/cpython

Affected ranges

Type
GIT
Repo
https://github.com/python/cpython
Events
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.7.16"
        },
        {
            "introduced": "3.3.0"
        },
        {
            "last_affected": "3.3.7"
        },
        {
            "introduced": "3.4.0"
        },
        {
            "last_affected": "3.4.10"
        },
        {
            "introduced": "3.5.0"
        },
        {
            "last_affected": "3.5.7"
        },
        {
            "introduced": "3.6.0"
        },
        {
            "last_affected": "3.6.9"
        },
        {
            "introduced": "3.7.0"
        },
        {
            "last_affected": "3.7.4"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.4"
        }
    ]
}

Database specific

unresolved_ranges
[
    {
        "events": [
            {
                "introduced": "3.0.0"
            },
            {
                "last_affected": "3.0.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.1.0"
            },
            {
                "last_affected": "3.1.5"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "3.2.0"
            },
            {
                "last_affected": "3.2.6"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "29"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "30"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "31"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "12.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "14.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "19.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.1"
            },
            {
                "last_affected": "4.3"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.57"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.58"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.8"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "11"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.1"
            }
        ]
    }
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16056.json"