UBUNTU-CVE-2019-20477

See a problem?
Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2019-20477
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20477.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-20477
Related
Published
2020-02-19T04:15:00Z
Modified
2020-02-19T04:15:00Z
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
Summary
[none]
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

Affected packages

Ubuntu:20.04:LTS / pyyaml

Package

Name
pyyaml
Purl
pkg:deb/ubuntu/pyyaml@5.3-1ubuntu2?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.3-1ubuntu2

Affected versions

5.*

5.1.2-1
5.1.2-1build1
5.3-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "low",
    "binaries": [
        {
            "python-yaml-dbg": "5.3-1ubuntu2",
            "python3-yaml": "5.3-1ubuntu2",
            "python-yaml": "5.3-1ubuntu2",
            "python3-yaml-dbg": "5.3-1ubuntu2"
        }
    ]
}