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

CVE-2017-13183

High
7/10

Summary

In the OMXNodeInstance::useBuffer and IOMX::freeBuffer functions, there is a possible use after free due to a race condition if the user frees the buffer while it's being used in another thread. This could lead to a local elevation of privilege enabling code execution as a privileged process with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: 8.1. Android ID: A-38118127.

  • HIGH
  • LOCAL
  • HIGH
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • 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