VDB
CVE-2019-20477
CVE-2019-20477
REJECTED
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.
EPSS 5.16% · 91.6th percentile
Risk Scores
EPSS Score
5.16%
91.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | pyyaml | 5.1.2-1, 5.1.2-1build1, 5.3-1ubuntu1 |
Timeline
- Oct 23, 2018 PoC Published
- Feb 19, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-20477 third-party-advisory
- https://github.com/yaml/pyyaml/blob/master/CHANGES third-party-advisory
- https://www.exploit-db.com/download/47655 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-20477 third-party-advisory