ProFTPD is prone to an overflow condition. The TELNET_IAC Escape Sequence handling fails to properly sanitize user-supplied input resulting in a stack overflow. With a specially crafted request, a remote attacker can potentially cause the executition of arbitrary code.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Solution:
Upgrade
Exploit:
Exploit Public
Disclosure:
Vendor Verified,
Coordinated Disclosure
Solution
Upgrade to version 1.3.3c or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.