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Vulnerability Note VU#682620Microsoft SQL Server contains buffer overflow in code used to process "BULK INSERT" queriesOverviewThe Microsoft SQL Server contains a buffer overflow vulnerability that may allow remote attackers to execute arbitrary code with system privileges.I. DescriptionThe Microsoft SQL Server contains a buffer overflow vulnerability in the code used to process "Bulk Insert" queries. Bulk Insert queries allow the SQL user to supply a file containing records to be imported into the SQL database. If an attacker supplies a file with an excessively long filename, it is possible to overflow the application stack and alter the flow of execution, resulting in the execution of arbitrary code. Note that successful exploitation of this vulnerability requires Bulk Administrator or Administrator group privileges.II. ImpactThis vulnerability may allow remote attackers to execute arbitrary code with system privileges.III. SolutionApply a patchMicrosoft has published Security Bulletin MS02-034 to address this vulnerability. For more information, please see This vulnerability also affects any products that include the Microsoft Desktop Engine (MSDE) 2000. For more information, please see Systems Affected
References
The CERT/CC thanks NGSSoftware for their discovery and analysis of this vulnerability. This document was written by Jeffrey P. Lanza and is based upon information provided by Microsoft and NGSSoftware.
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