When the option imapmagicplus is activated on a Cyrus IMAP server the PROXY and LOGIN commands suffer a standard stack overflow, because the username is not checked against a maximum length when it is copied into a temporary stack buffer. This bug is exploited by this module to install an agent. Cyrus 2.2.8 and prior are vulnerable.
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Cisco Secure ACS UCP. The vulnerability is caused due to a boundary error within Cisco Secure ACS UCP when processing passwords with CSuserCGI.exe vulnerable module. This can be exploited to cause a stack-based buffer overflow via an overly long, specially-crafted argument passed to this module.