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Red Hat OpenShift: CVE-2021-21419: python-eventlet: improper handling of highly compressed data and memory allocation with excessive size allows DoS

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Red Hat OpenShift: CVE-2021-21419: python-eventlet: improper handling of highly compressed data and memory allocation with excessive size allows DoS

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
05/07/2021
Created
07/30/2021
Added
07/29/2021
Modified
07/29/2021

Description

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.

Solution(s)

  • linuxrpm-upgrade-python-eventlet

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