CVE-2024-49769 (GCVE-0-2024-49769)

Vulnerability from cvelistv5 – Published: 2024-10-29 14:18 – Updated: 2024-11-17 00:11
VLAI
Title
Waitress has a denial of service leading to high CPU usage/resource exhaustion
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-29 14:56 UTC
CWE
  • CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7630 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Pylons waitress Affected: < 3.0.1
guessed Create a notification for this product.
pylons waitress Affected: 0 , < 3.0.1 (custom)
    cpe:2.3:a:pylons:waitress:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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