GHSA-3pqx-4fqf-j49f
Suggest an improvement- Source
- https://github.com/advisories/GHSA-3pqx-4fqf-j49f
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/04/GHSA-3pqx-4fqf-j49f/GHSA-3pqx-4fqf-j49f.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-3pqx-4fqf-j49f
- Aliases
- Published
- 2021-04-20T16:40:42Z
- Modified
- 2024-10-25T21:23:36.051580Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Deserialization of Untrusted Data in PyYAML
- Details
-
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
-
- https://nvd.nist.gov/vuln/detail/CVE-2019-20477
- https://github.com/advisories/GHSA-3pqx-4fqf-j49f
- https://github.com/pypa/advisory-database/tree/main/vulns/pyyaml/PYSEC-2020-176.yaml
- https://github.com/yaml/pyyaml
- https://github.com/yaml/pyyaml/blob/master/CHANGES
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/33VBUY73AA6CTTYL3LRWHNFDULV7PFPN
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/52N5XS73Z5S4ZN7I7R56ICCPCTKCUV4H
- https://www.exploit-db.com/download/47655
Affected packages
PyPI / pyyaml
Package
- Name
- pyyaml
- View open source insights on deps.dev
- Purl
- pkg:pypi/pyyaml