UBUNTU-CVE-2021-21419

See a problem?
Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2021-21419
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21419.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-21419
Related
Published
2021-05-07T15:15:00Z
Modified
2021-05-07T15:15:00Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process.

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=src?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",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "python3-eventlet": "0.25.1-2ubuntu1.1",
            "python-eventlet-doc": "0.25.1-2ubuntu1.1"
        }
    ]
}