Mercury SMTPD CRAM-MD5 Pre-Auth Buffer Overflow Exploit Update

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of the Mercury Mail Transport System. The vulnerability is caused due to a boundary error within Mercury/32 SMTP Server Module (mercurys.dll) when processing arguments to the AUTH CRAM-MD5 command. This can be exploited to cause a stack-based buffer overflow via an overly long, specially-crafted argument passed to the affected command.



This update adds support for DEP (Data Execution Prevention).