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Missing Release of Resource after Effective Lifetime The advisory has been revoked - it doesn't affect any version of package python-waitress.src  (opens in a new tab)

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EPSS
1.18% (79th percentile)

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  • Snyk IDSNYK-RHEL10-PYTHONWAITRESSSRC-12614369
  • published11 Sept 2025
  • disclosed29 Oct 2024
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Introduced: 29 Oct 2024

CVE-2024-49769  (opens in a new tab)
CWE-772  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-waitress.src package and not the python-waitress.src package as distributed by RHEL.

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.