J-Security Center

Title: Microsoft SQL Server 7.0 NULL Data DoS Vulnerability

Severity: MODERATE

Description:

If Microsoft SQL Server 7.0 receives a TDS header with three or more NULL bytes as data it will crash. The crash will generate an event in the log with ID 17055 "fatal exception EXCEPTION_ACCESS VIOLATION".

Affected Products:

  • Microsoft SQL Server 7.0.0
  • Microsoft SQL Server 7.0.0SP1
  • Microsoft SQL Server 7.0.0SP1 alpha
  • Microsoft SQL Server 7.0.0alpha

References:

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