David Barker has discovered a vulnerability in LAN SUITE 2003, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error within smtpdll.dll when processing queued email messages with overly long email addresses. This can be exploited to cause a stack-based buffer overflow by e.g. sending an email message containing an overly long (greater than 260 bytes), specially crafted email address through the application's SMTP service.
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in 602Pro LAN SUITE 2003 build 2003.0.03.0828. Other versions may also be affected.
Solution: According to the vendor, a patch will not be issued. Instead, the vendor encourages users to upgrade to 602LAN SUITE 2004.
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Subject: 602Pro LAN SUITE 2003 Email Message Processing Buffer Overflow
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