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Synchronous Access of Remote Resource without Timeout

CVE-2024-8062

High
7.5/10

Summary

A vulnerability in the typeahead endpoint of h2oai/h2o-3 allows for a Denial Of Service (DoS). The endpoint performs a "HEAD" request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controlled server that hangs, causing the application to block and become unresponsive to other requests. This issue affects h2o versions 3.2.0.1 and after.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-1088 - Synchronous Access of Remote Resource without Timeout

The code has a synchronous call to a remote resource, but there is no timeout for the call, or the timeout is set to infinite.

References

Advisory Timeline

  • Published