A remote overflow exists in SH39 MailServer. The application fails to perform proper bounds checking resulting in a buffer overflow. With a specially crafted request to port 25 containing 2,500 or more characters, a remote attacker can cause the application to crash resulting in a loss of availability for the service.
Classification
Location:
Remote/Network Access Required
Attack Type:
Denial of Service,
Input Manipulation
Impact:
Loss of Availability
Exploit:
Exploit Available
Disclosure:
OSVDB Verified
Solution
Currently, there are no known upgrades, patches, or workarounds available to correct this issue.