CyberRota Analysis
AI-GeneratedThe resource-exhaustion vulnerability in OpenPrinting CUPS affects the job scheduling mechanism, allowing a client with access to the IPP service to prevent pending print jobs from expiring by holding incomplete HTTP requests. This can lead to a situation where legitimate print submissions are rejected once the maximum job limit is reached. Organizations using CUPS for printing services should prioritize this issue to ensure uninterrupted print operations and prevent potential denial-of-service scenarios.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
OpenPrinting CUPS through 2.4.20 contains a resource-exhaustion vulnerability in the submission-timeout handling of cupsdCheckJobs(). The scheduler suppresses timeout processing for all pending jobs whenever any client connection has an in-flight Send-Document operation, without matching that connection to the job being examined. A client allowed to reach the IPP service can hold an incomplete HTTP request containing parsed Send-Document headers before operation authorization, preventing unrelated incomplete jobs from expiring. Where Create-Job submission is allowed, incomplete jobs can accumulate until MaxJobs is exhausted and further legitimate print submissions are rejected. The suppression ends when the held connection closes.