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Improper Synchronization

CVE-2019-17344

Medium
6.5/10

Summary

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.

  • LOW
  • LOCAL
  • NONE
  • CHANGED
  • NONE
  • LOW
  • NONE
  • HIGH

CWE-662 - Improper Synchronization

The software utilizes multiple threads or processes to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes.

References

Advisory Timeline

  • Published