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

CVE-2009-0875

Severity Medium
Score 6.9/10

Summary

Race condition in the Doors subsystem in the kernel in Sun Solaris 8 through 10, and OpenSolaris before snv_94, allows local users to cause a denial of service (process hang), or possibly bypass file permissions or gain kernel-context privileges, via vectors involving the time at which control is transferred from a caller to a door server.

  • MEDIUM
  • LOCAL
  • NONE
  • COMPLETE
  • COMPLETE
  • COMPLETE

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