Integer signedness error in the SQLConnectW function in an ODBC API (odbc32.dll) in Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2, and Windows Data Access Components (WDAC) 6.0, allows remote attackers to execute arbitrary code via a long string in the Data Source Name (DSN) and a crafted szDSN argument, which bypasses a signed comparison and leads to a buffer overflow, aka "DSN Overflow Vulnerability."
Vector
NETWORK
Complexity
MEDIUM
Authentication
NONE
Confidentiality
COMPLETE
Integrity
COMPLETE
Availability
COMPLETE
KB2419632 | MS11-002 - Vulnerabilities in Microsoft Data Access Components Could Allow Remote Code Execution
KB2419635 | MS11-002 - Vulnerabilities in Microsoft Data Access Components Could Allow Remote Code Execution
KB2419640 | MS11-002 - Vulnerabilities in Microsoft Data Access Components Could Allow Remote Code Execution