---------------------------------------- Synopsis ---------------------------------------- SurgeMail Mail Server 3.9e (Windows and Unix-based versions) is vulnerable to denial-of-service (DoS) attacks. The nature of the crash may indicate a buffer overflow problem, but the developers claimed otherwise. The IMAP server abruptly crashes when processing an APPEND message with a large parameter. Product: SurgeMail Mail Server Version: 3.9e and probably the older versions Vendor: NetWin (www.netwinsite.com) Type: Denial-of-service Risk: service disruption Remote: Yes Discovered by: João Antunes (AJECT -- Attack Injection Tool) on 04/Jun/ 2008 Exploit: Not Available Solution: Not Available Status: Developers were contacted and corrected the software in version 3.9g2 ---------------------------------------- Vulnerability Description ---------------------------------------- The vulnerability can be triggered by sending the following messages: A01 LOGIN username password A01 APPEND Ax5000 (UIDNEXT MESSAGES) This should crash both the windows and unix-based versions of the IMAP server. Successful exploitation results in a remote denial of service.