NetWin DMail ETRN Buffer Overflow Vulnerability

NetWin's DMail is an alternative mail-server solution for unix and NT servers. There is a buffer overflow vulnerability in the server daemon that could allow remote attackers to execute arbitrary commands as root or cause a denial of service. The overflow occurs when a large buffer is sent to argument the ETRN command: If over 260 characters are sent, the stack is corrupted and the mailserver will crash.


 

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