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PYSEC-2018-79

Quick fix

PYSEC-2018-79 — websockets: upgrade to the fixed version with the command below.

pip install --upgrade 'websockets>=5.0'

Details

aaugustin websockets version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured with compression=None that can result in Denial of Service by memory exhaustion. This attack appear to be exploitable via Sending a specially crafted frame on an established connection. This vulnerability appears to have been fixed in 5.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/websockets

Introduced in: 0Fixed in: 5.0

Fixpip install --upgrade 'websockets>=5.0'

References

https://github.com/aaugustin/websockets/pull/407[WEB]
https://github.com/advisories/GHSA-6g87-ff9q-v847[ADVISORY]