GHSA-3pqx-4fqf-j49fCriticalCVSS 9.8
Deserialization of Untrusted Data in PyYAML
🔗 CVE IDs covered (1)
📋 Description
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.
🎯 Affected products1
- pip/pyyaml:>= 5.1, < 5.2
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2019-20477
- https://github.com/yaml/pyyaml/blob/master/CHANGES
- https://www.exploit-db.com/download/47655
- https://github.com/advisories/GHSA-3pqx-4fqf-j49f
- https://github.com/pypa/advisory-database/tree/main/vulns/pyyaml/PYSEC-2020-176.yaml
- https://lists.fedoraproject.org/archives/list/[email protected]/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN
- https://lists.fedoraproject.org/archives/list/[email protected]/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H