USN-4940-1

Source
https://ubuntu.com/security/notices/USN-4940-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4940-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4940-1
Related
Published
2021-05-10T14:19:33.037369Z
Modified
2021-05-10T14:19:33.037369Z
Summary
pyyaml vulnerability
Details

It was discovered that PyYAML incorrectly handled untrusted YAML files with the FullLoader loader. A remote attacker could possibly use this issue to execute arbitrary code.

References

Affected packages

Ubuntu:20.04:LTS / pyyaml

Package

Name
pyyaml
Purl
pkg:deb/ubuntu/pyyaml?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.3.1-1ubuntu0.1

Affected versions

5.*

5.1.2-1
5.1.2-1build1
5.3-1ubuntu1
5.3-1ubuntu2
5.3-1ubuntu3
5.3-2
5.3.1-1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "5.3.1-1ubuntu0.1",
            "binary_name": "python-yaml"
        },
        {
            "binary_version": "5.3.1-1ubuntu0.1",
            "binary_name": "python-yaml-dbg"
        },
        {
            "binary_version": "5.3.1-1ubuntu0.1",
            "binary_name": "python3-yaml"
        },
        {
            "binary_version": "5.3.1-1ubuntu0.1",
            "binary_name": "python3-yaml-dbg"
        }
    ]
}