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Gmane
From: <updates <at> fedoraproject.org>
Subject: [SECURITY] Fedora 17 Update: proftpd-1.3.4b-5.fc17
Newsgroups: gmane.linux.redhat.fedora.package.announce
Date: Wednesday 30th January 2013 00:59:00 UTC (over 3 years ago)
--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2013-0483
2013-01-09 08:17:43
--------------------------------------------------------------------------------

Name        : proftpd
Product     : Fedora 17
Version     : 1.3.4b
Release     : 5.fc17
URL         : http://www.proftpd.org/
Summary     : Flexible, stable and highly-configurable FTP server
Description :
ProFTPD is an enhanced FTP server with a focus toward simplicity, security,
and ease of configuration. It features a very Apache-like configuration
syntax, and a highly customizable server infrastructure, including support
for
multiple 'virtual' FTP servers, anonymous FTP, and permission-based
directory
visibility.

This package defaults to the standalone behavior of ProFTPD, but all the
needed scripts to have it run by xinetd instead are included.

--------------------------------------------------------------------------------
Update Information:

Jann Horn reported that there is a possible race condition in the handling
of the MKD/XMKD FTP commands, when the UserOwner directive is involved, and
the attacker is on the same physical machine as a running proftpd. This
race applies to mod_sftp and the handling of the MKDIR SFTP request as
well.

Note that using the DefaultRoot directive to restrict sessions mitigates
this attack, since the symlinks created by the local attacker will point
outside of the chroot(2) area within the FTP session, and thus the
ownership change will fail. The default configuration in Fedora applies the
DefaultRoot directive to all users except "adm".

The upstream reference for this issue is:
http://bugs.proftpd.org/show_bug.cgi?id=3841

This update includes upstream's backport to proftpd 1.3.4 of the fix for
this issue.
--------------------------------------------------------------------------------
ChangeLog:

* Wed Jan 16 2013 Paul Howarth  1.3.4b-5
- Update patch for CVE-2012-6095 to cover vroot cases
* Mon Jan  7 2013 Paul Howarth  1.3.4b-4
- Fix possible symlink race when applying UserOwner to newly created
directory
  (CVE-2012-6095, #892715, http://bugs.proftpd.org/show_bug.cgi?id=3841)
* Sat Sep 22 2012 Remi Collet  1.3.4b-3
- Rebuild against libmemcached.so.11 without SASL
* Thu Aug 30 2012 Paul Howarth  1.3.4b-2
- Add support for systemd presets in Fedora 18+ (#850281)
* Wed Aug  1 2012 Paul Howarth  1.3.4b-1
- Update to 1.3.4b
  - Fixed mod_ldap segfault on login when LDAPUsers with no filters used
  - Fixed sporadic SFTP upload issues for large files
  - Fixed SSH2 handling for some clients (e.g. OpenVMS)
  - New FactsOptions directive; see doc/modules/mod_facts.html#FactsOptions
  - Fixed build errors on Tru64, AIX, Cygwin
  - Lots of bugs fixed - see NEWS for details
- No bzipped tarball release this time, so revert to gzipped one
- Drop patches for fixes included in upstream release
* Sat Jul 21 2012 Fedora Release Engineering
 1.3.4a-11
- Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
* Tue Jul  3 2012 Paul Howarth  1.3.4a-10
- Move tmpfiles.d file from %{_sysconfdir} to %{_prefix}/lib
* Sat Apr 21 2012 Paul Howarth  1.3.4a-9
- Rebuild for new libmemcached in Rawhide
--------------------------------------------------------------------------------
References:

  [ 1 ] Bug #892715 - CVE-2012-6095 proftpd: Symlink race condition when
applying UserOwner to a newly (ProFTPD) created directory
        https://bugzilla.redhat.com/show_bug.cgi?id=892715
--------------------------------------------------------------------------------

This update can be installed with the "yum" update program.  Use 
su -c 'yum update proftpd' 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 Project 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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