Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet
ImpactA 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.PatchesVersion 0.31.0 restricts websocket frame to reasonable limits.WorkaroundsRestricting memory usage via OS limits would help against overall machine exhaustion. No workaround to protect Eventlet process.For more informationIf 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