Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Agendaless | Waitress | < 3.0.1 |
Related Weaknesses (CWE)
References
- https://github.com/Pylons/waitress/commit/1ae4e894c9f76543bee06584001583fc6fa8c9Patch
- https://github.com/Pylons/waitress/issues/418Issue Tracking
- https://github.com/Pylons/waitress/pull/435Patch
- https://github.com/Pylons/waitress/security/advisories/GHSA-3f84-rpwh-47g6Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/11/msg00012.html
FAQ
What is CVE-2024-49769?
CVE-2024-49769 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2024-49769?
CVE-2024-49769 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-49769?
Check the references section above for vendor advisories and patch information. Affected products include: Agendaless Waitress.