USN-4956-1

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Source
https://ubuntu.com/security/notices/USN-4956-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4956-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4956-1
Upstream
Related
Published
2021-05-17T13:32:42.307554Z
Modified
2025-10-13T04:35:30Z
Summary
python-eventlet vulnerability
Details

It was discovered that Eventlet incorrectly handled certain requests. An attacker could possibly use this issue to cause a denial of service.

References

Affected packages

Ubuntu:20.04:LTS / python-eventlet

Package

Name
python-eventlet
Purl
pkg:deb/ubuntu/python-eventlet@0.25.1-2ubuntu1.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.25.1-2ubuntu1.1

Affected versions

0.*

0.25.0-0ubuntu1
0.25.1-2build1
0.25.1-2ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.25.1-2ubuntu1.1",
            "binary_name": "python3-eventlet"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4956-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2021-21419",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}