[SECURITY] Fedora EPEL 6 Update: pure-ftpd-1.0.30-1.el6

[updates at fedoraproject.org]

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Fedora EPEL Update Notification
FEDORA-EPEL-2011-2804
2011-03-15 17:43:24
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Name        : pure-ftpd
Product     : Fedora EPEL 6
Version     : 1.0.30
Release     : 1.el6
URL         : http://www.pureftpd.org
Summary     : Lightweight, fast and secure FTP server
Description :
Pure-FTPd is a fast, production-quality, standard-comformant FTP server,
based upon Troll-FTPd. Unlike other popular FTP servers, it has no known
security flaw, it is really trivial to set up and it is especially designed
for modern Linux and FreeBSD kernels (setfsuid, sendfile, capabilities) .
Features include PAM support, IPv6, chroot()ed home directories, virtual
domains, built-in LS, anti-warez system, bandwidth throttling, FXP, bounded
ports for passive downloads, UL/DL ratios, native LDAP and SQL support,
Apache log files and more.
Rebuild switches:
--without ldap     disable ldap support
--without mysql    disable mysql support
--without pgsql    disable postgresql support
--without extauth  disable external authentication
--without tls      disable SSL/TLS

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Update Information:

Wietse Venema and Victor Duchovni discovered and reported an issue that could lead to a potential information disclosure.

An unencrypted FTP command immediately following STARTTLS request would get buffered and processed prior to SSL/TLS handshake, resulting in potential authentication bypass in case a client certificate authentication was configured to provide user identity.

A report of similar issue that was originally discovered in Postfix MTA contains further technical details and discusses possible impact: http://www.postfix.org/CVE-2011-0411.html

Users of pure-ftpd are advised to install this updated package which contains a fix for the issue.
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References:

  [ 1 ] Bug #683221 - pure-ftpd: command injection during plaintext to TLS session switch
        https://bugzilla.redhat.com/show_bug.cgi?id=683221
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This update can be installed with the "yum" update programs.  Use
su -c 'yum update pure-ftpd' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora EPEL GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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