A remote overflow exists in E-Post. The SMTP service fails to check the length of the username supplied to the AUTH PLAIN and AUTH LOGIN commands, resulting in a stack-based overflow. With a specially crafted request, an attacker can cause arbitrary code execution resulting in a loss of integrity.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Exploit:
Exploit Unknown
Disclosure:
OSVDB Verified
Solution
Currently, there are no known workarounds or upgrades to correct this issue. However, E-POST Inc. has released a patch to address this vulnerability.
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