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WU-FTPD < 2.4.3 Directory Structure Processing Overflow

Critical

Synopsis

The remote host is vulnerable to a buffer overflow.

Description

The remote WU-FTPD server is vulnerable to a buffer overflow bug when it processes directories structure names. An attacker may use this flaw by creating a huge directory structure with specially malformed names, and may be able to execute arbitrary commands on this host with the privileges of the FTP daemon (typically, root)

Solution

Upgrade to WU-FTPD 2.4.3 or higher.