Advisory Database
  • Advisories
  • Dependency Scanning
  1. pypi
  2. ›
  3. eventlet
  4. ›
  5. CVE-2021-21419

CVE-2021-21419: Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet

May 7, 2021 (updated September 20, 2024)

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.

References

  • github.com/advisories/GHSA-9p9m-jm8w-94p2
  • github.com/eventlet/eventlet
  • github.com/eventlet/eventlet/commit/1412f5e4125b4313f815778a1acb4d3336efcd07
  • github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2
  • github.com/pypa/advisory-database/tree/main/vulns/eventlet/PYSEC-2021-12.yaml
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R5JZP4LZOSP7CUAM3GIRW6PIAWKH5VGB
  • nvd.nist.gov/vuln/detail/CVE-2021-21419

Code Behaviors & Features

Detect and mitigate CVE-2021-21419 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions starting from 0.10 before 0.31.0

Fixed versions

  • 0.31.0

Solution

Upgrade to version 0.31.0 or above.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Learn more about CVSS

Weakness

  • CWE-400: Uncontrolled Resource Consumption

Source file

pypi/eventlet/CVE-2021-21419.yml

Spotted a mistake? Edit the file on GitLab.

  • Site Repo
  • About GitLab
  • Terms
  • Privacy Statement
  • Contact

Page generated Sun, 08 Nov 2026 00:16:26 +0000.