CVE-2021-21419 – eventlet

Package

Manager: pip
Name: eventlet
Vulnerable Version: >=0.10 <0.31.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: 0.00097 pctl0.27779

Details

Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet ### Impact 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. ### Patches Version 0.31.0 restricts websocket frame to reasonable limits. ### Workarounds Restricting memory usage via OS limits would help against overall machine exhaustion. No workaround to protect Eventlet process. ### For more information If you have any questions or comments about this advisory: * Open an issue in [eventlet](https://github.com/eventlet/eventlet/issues) * Contact current maintainers. At 2021-03: temotor@gmail.com or https://t.me/temotor

Metadata

Created: 2021-05-07T15:50:36Z
Modified: 2024-09-20T17:20:53Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/05/GHSA-9p9m-jm8w-94p2/GHSA-9p9m-jm8w-94p2.json
CWE IDs: ["CWE-400"]
Alternative ID: GHSA-9p9m-jm8w-94p2
Finding: F067
Auto approve: 1