CVE-2021-21419

Summary

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.

Affected Software

VendorProductVersion RangeStatus
eventleteventlet>= 0.10, < 0.31.0affected

Weaknesses

  • CWE-400: {"CWE-400":"Uncontrolled Resource Consumption"}

ADP Enrichment

CVE Program Container

Additional References

References