AnalogX Proxy Long USER command in POP3 Protocol DoS
Denial of Service
Loss of Availability
AnalogX Proxy contains a flaw that allows a remote attacker to crash the server. The issue is due to a buffer overflow condition in the POP3 service. By sending a USER command containing 370 or more characters to port 110, an attacker will crash the server.
Upgrade to version 4.05 or higher, as it has been reported to fix this
vulnerability. An upgrade is required as there are no known workarounds.