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The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade pure-ftpd | Jul 30, 2024 | May 23, 2011 |
| Freebsd | — | Upgrade pure-ftpd | Dec 10, 2025 | May 23, 2011 |
| Gentoo Linux | — | Upgrade net-ftp/pure-ftpd. | Oct 30, 2017 | May 23, 2011 |
| Suse | — | Upgrade pure-ftpd | Feb 17, 2015 | May 23, 2011 |
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