The asynchronous I/O facility in 4.4 BSD kernel does not check user credentials when setting the recipient of I/O notification, which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process ID.

Technical Details

CVSSv2 Score:




Published Date:

Monday 15th of September 1997

Modified Date:

Tuesday 10th of October 2017

CVSSv2 Score:
  • Access Vector: Local
  • Access Complexity: Low
  • Authentication Required: None
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Partial
Common Platform Enumeration (CPE) Affected: Common Platform Enumeration (CPE) List:

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