CVE-2024-49769

Waitress is a Web Server Gateway Interface server for Python 2 and 3. When a remote client closes the connection before waitress has had the opportunity to call getpeername() waitress won't correctly clean up the connection leading to the main thread attempting to write to a socket that no longer exists, but not removing it from the list of sockets to attempt to process. This leads to a busy-loop calling the write function. A remote attacker could run waitress out of available sockets with very little resources required. Waitress 3.0.1 contains fixes that remove the race condition.

Score
CVSS 3.1 7.5 High
Status
Modified - security-advisories@github.com
Published
2024-10-29
Last modified
2024-11-17
Weaknesses
CWE-772

Affected products

References

 
 
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