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.
CVE-2021-21419
Published Date: 2021-05-07T15:15Z
Last Modified: 2023-11-07T03:30Z
CVSS Score: 5.3 (MEDIUM)
EPSS Score: 0.12%
Risk Score: 3.71 (MEDIUM)
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
CVSS:
5.3 |
EPSS:
0.12%
Mitre ATT&CK Technical v15.1
T1059.006 – Python
T1053.002 – At
Technical Analysis & Mitigation Measures
Reference Links
https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5JZP4LZOSP7CUAM3GIRW6PIAWKH5VGB/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L/
Vendor - Produce - Version
eventlet - eventlet, fedora - fedoraproject, fedora - fedoraproject
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