[Security] Bump eventlet from 0.25.1 to 0.31.0

[dependabot-preview]

Bumps eventlet from 0.25.1 to 0.31.0.

Changelog

Sourced from eventlet's changelog.

0.31.0

• IMPORTANT: websocket: Limit maximum uncompressed frame length to 8MiB GHSA-9p9m-jm8w-94p2

0.30.3

• wsgi: websocket ALREADY_HANDLED flag on corolocal
• green.ssl: Set suppress_ragged_eofs default based on SSLSocket defaults
• greenio: socket.connect_ex returned None instead of 0 on success
• Use _imp instead of deprecated imp

0.30.2

• greendns: patch ssl to fix RecursionError on SSLContext.options.set eventlet/eventlet#677

0.30.1

• patcher: built-in open() did not accept kwargs eventlet/eventlet#683

0.30.0

• pyopenssl tsafe module was deprecated and removed in v20.0.0
• deprecate pyevent hub
• Deprecate CPython 2.7 and 3.4 support
• py39: Add _at_fork_reinit method to Semaphores

0.29.1

patcher: [py27] recursion error in pytest/python2.7 installing register_at_fork eventlet/eventlet#660 patcher: monkey_patch(builtins=True) failed on py3 because file class is gone eventlet/eventlet#541 don't crash on PyPy 7.0.0 eventlet/eventlet#547 Only install monotonic on python2 eventlet/eventlet#583

0.29.0

• ssl: context wrapped listener fails accept() eventlet/eventlet#651

0.28.1

• Sorry, Eventlet was broken on Windows for versions 0.27-0.28 patcher: no os.register_at_fork on Windows (#654)
• Clean up TypeError in del

0.28.0

• Always remove the right listener from the hub eventlet/eventlet#645

0.27.0

• patcher: Clean up threading book-keeping at fork when monkey-patched

... (truncated)

Commits

• f717f38 v0.31.0 release
• 1412f5e websocket: Limit maximum uncompressed frame length to 8MiB
• b0be94e v0.30.3 release
• df0bc00 wsgi: websocket ALREADY_HANDLED flag on corolocal
• 377b4fb green.ssl: Set suppress_ragged_eofs default based on SSLSocket defaults
• 71b76bf Security Policy
• 50441fc greenio: socket.connect_ex returned None instead of 0 on success
• e16fcab Use _imp instead of deprecated imp
• 83b14ed v0.30.2 release
• 79cf4ea greendns: Patch ssl
• Additional commits viewable in compare view

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[dependabot-preview]

We've just been alerted that this update fixes a security vulnerability:

Sourced from The GitHub Security Advisory Database.

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
... (truncated)

Affected versions: [">= 0.10, < 0.31.0"]