CVE-2019-20477

PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.

References

Affected packages

Git / github.com/yaml/pyyaml

Affected ranges

Type

GIT

Repo

https://github.com/yaml/pyyaml

Events

Introduced

e471e86bf6dabdad45a1438c20a4a5c033eb9034

Last affected

a9b98a3daa43d43afd8051b014d5b4154d141913

Database specific

{
    "versions": [
        {
            "introduced": "5.1"
        },
        {
            "last_affected": "5.1.2"
        }
    ]
}

Database specific

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "30"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "31"
            }
        ]
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-20477.json"