CVE-2021-21419

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-21419
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21419.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-21419
Aliases
Related
Published
2021-05-07T15:15:07Z
Modified
2025-02-19T03:15:06.106927Z
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

Debian:11 / python-eventlet

Package

Name
python-eventlet
Purl
pkg:deb/debian/python-eventlet?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.26.1-7

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / python-eventlet

Package

Name
python-eventlet
Purl
pkg:deb/debian/python-eventlet?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.26.1-7

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / python-eventlet

Package

Name
python-eventlet
Purl
pkg:deb/debian/python-eventlet?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.26.1-7

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/eventlet/eventlet

Affected ranges

Type
GIT
Repo
https://github.com/eventlet/eventlet
Events
Introduced
b0969fc156700b84eefa554bea65088486c104de
Fixed
f717f382d0bfb5cf084a9e69737fa6dfcb2eb5cf

Affected versions

v0.*

v0.10
v0.11
v0.12
v0.13
v0.14
v0.15
v0.15.1
v0.15.2
v0.16
v0.16.1
v0.17
v0.17.1
v0.17.2
v0.17.3
v0.17.4
v0.18.0
v0.18.1
v0.18.2
v0.18.4
v0.19.0
v0.20.0
v0.20.1
v0.21.0
v0.22.0
v0.22.1
v0.23.0
v0.24.0
v0.24.1
v0.25.0
v0.25.1
v0.25.2
v0.26.0
v0.26.1
v0.27.0
v0.28.0
v0.28.1
v0.29.0
v0.29.1
v0.30.0
v0.30.1
v0.30.2
v0.30.3