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Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVE-2018-15499

Medium
4.7/10

Summary

GEAR Software products that include GEARAspiWDM.sys, 2.2.5.0, allow local users to cause a denial of service (Race Condition and BSoD on Windows) by not checking that user-mode memory is available right before writing to it. A check is only performed at the beginning of a long subroutine.

  • HIGH
  • LOCAL
  • NONE
  • UNCHANGED
  • NONE
  • LOW
  • NONE
  • HIGH

CWE-362 - Race Condition

A race condition occurs in a shared memory program when two threads/processes access the same shared memory data, and at least one thread executes a write operation. This vulnerability manipulates the time to check vs. time to use (TOC/TOU) gap between the threads in the critical section to cause disorientation in the shared data. The impact can vary from compromising the confidentiality of the system to causing the system to crash or to execute arbitrary code.

References

Advisory Timeline

  • Published