Missing Release of Resource after Effective Lifetime Affecting waitress package, versions [,3.0.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-WAITRESS-8309635
- published29 Oct 2024
- disclosed29 Oct 2024
- creditDylan Jay
Introduced: 29 Oct 2024
CVE-2024-49769 (opens in a new tab)How to fix?
Upgrade waitress to version 3.0.1 or higher.
Overview
waitress is a production-quality pure-Python WSGI server with very acceptable performance.
Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime due to the improper handling of socket connections when a remote client prematurely closes the connection, before waitress has had the opportunity to call getpeername(). An attacker can exhaust system resources and cause high CPU usage by repeatedly opening and closing connections, leading to a busy-loop in the server's socket handling.