[SECURITY] Fedora 31 Update: proftpd-1.3.6b-2.fc31

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Fedora Update Notification
FEDORA-2019-bfacf1e958
2019-12-08 01:16:01.293717
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Name        : proftpd
Product     : Fedora 31
Version     : 1.3.6b
Release     : 2.fc31
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 systemd instead are included.

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Update Information:

This update addresses a number of bugs affecting processing of CRLs in mod_tls,
including possible null pointer dereferences and missing some checks. Thanks to
Lionel Debroux for reporting them.
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ChangeLog:

* Fri Nov 29 2019 Paul Howarth <paul(a)city-fan.org&gt; - 1.3.6b-2
- Fix handling of CRL lookups by properly using issuer for lookups, and
  guarding against null pointers (GH#859, GH#861, CVE-2019-19269)
* Sun Oct 20 2019 Paul Howarth <paul(a)city-fan.org&gt; - 1.3.6b-1
- Update to 1.3.6b
  - Fixed pre-authentication remote denial-of-service issue
    (CVE-2019-18217, https://github.com/proftpd/proftpd/issues/846)
* Sun Oct 13 2019 Paul Howarth <paul(a)city-fan.org&gt; - 1.3.6a-1
- Update to 1.3.6a
  - Configure script wrongly detected AIX lastlog functions
    (http://bugs.proftpd.org/show_bug.cgi?id=4304)
  - AllowChrootSymlinks off could cause login failures depending on filesystem
    permissions (http://bugs.proftpd.org/show_bug.cgi?id=4306)
  - mod_ctrls: error: unable to bind to local socket: Address already in use
    (https://github.com/proftpd/proftpd/issues/501)
  - Failed to handle multiple %{env:...} variables in single word in
    configuration (https://github.com/proftpd/proftpd/issues/507)
  - mod_sftp failed to check shadow password information when publickey
    authentication used (http://bugs.proftpd.org/show_bug.cgi?id=4308)
  - Use of "AllowEmptyPasswords off" broke SFTP/SCP logins
    (http://bugs.proftpd.org/show_bug.cgi?id=4309)
  - Use of mod_facl as static module caused ProFTPD to die on SIGHUP/restart
    (http://bugs.proftpd.org/show_bug.cgi?id=4310)
  - Use of curve25519-sha256(a)libssh.org SSH2 key exchange sometimes failed
    (https://github.com/proftpd/proftpd/issues/556)
  - Close extra file descriptors at startup
    (http://bugs.proftpd.org/show_bug.cgi?id=4312)
  - <Anonymous> with AuthAliasOnly in effect did not work as expected
    (http://bugs.proftpd.org/show_bug.cgi?id=4314)
  - CreateHome NoRootPrivs only worked partially
    (https://github.com/proftpd/proftpd/issues/568)
  - SFTP OPEN response included attribute flags that are not actually provided
    (https://github.com/proftpd/proftpd/issues/578)
  - Truncation of file while being downloaded with sendfile enabled caused
    timeouts due to infinite loop (http://bugs.proftpd.org/show_bug.cgi?id=4318)
  - FTP uploads frequently broke due to "Interrupted system call" error
    (http://bugs.proftpd.org/show_bug.cgi?id=4319)
  - Site-to-site transfers over TLS failed
    (https://github.com/proftpd/proftpd/issues/618)
  - Can't see symlinks using any FTP client when using MLSD
    (http://bugs.proftpd.org/show_bug.cgi?id=4322)
  - mod_tls 1.3.6 failed to compile using OpenSSL 0.9.8e
    (http://bugs.proftpd.org/show_bug.cgi?id=4325)
  - Using MaxClientsPerHost 1 in <Anonymous> section denied logins
    (http://bugs.proftpd.org/show_bug.cgi?id=4326)
  - SQLNamedConnectInfo with different backend database did not work properly
    (https://github.com/proftpd/proftpd/issues/642)
  - Segfault with mod_sftp+mod_sftp_pam after successful authentication using
    keyboard-interactive method (https://github.com/proftpd/proftpd/issues/656)
  - autoconf always failed to detect support for FIPS
    (https://github.com/proftpd/proftpd/issues/660)
  - SFTP connections failed when using "arcfour256" cipher
    (https://github.com/proftpd/proftpd/issues/663)
  - mod_auth_otp failed to build with OpenSSL 1.1.x
    (http://bugs.proftpd.org/show_bug.cgi?id=4335)
  - scp broken on FreeBSD 11 (http://bugs.proftpd.org/show_bug.cgi?id=4341)
  - Update mod_sftp to handle changed APIs in OpenSSL 1.1.x releases
    (https://github.com/proftpd/proftpd/issues/674)
  - Infinite loop possible in mod_sftp's set_sftphostkey() function
    (http://bugs.proftpd.org/show_bug.cgi?id=4356)
  - Some ASCII text files corrupted when downloading
    (http://bugs.proftpd.org/show_bug.cgi?id=4352)
  - Properly use the --includedir, --libdir configure variables in the
    generated proftpd.pc pkgconfig file
    (https://github.com/proftpd/proftpd/issues/797)
  - Reading invalid SSH key from database resulted in unexpected/unlogged
    disconnect failures (http://bugs.proftpd.org/show_bug.cgi?id=4350)
  - Symlink navigation broken after 1.3.6 update
    (http://bugs.proftpd.org/show_bug.cgi?id=4332)
  - Unable to connect to ProFTPD using TLSSessionTickets and TLSv1.3
    (https://github.com/proftpd/proftpd/issues/795)
  - SITE CPFR/CPTO did not honor <Limit> configurations
    (http://bugs.proftpd.org/show_bug.cgi?id=4372)
  - Using "TLSProtocol SSLv23" did not enable all protocol versions
    (https://github.com/proftpd/proftpd/issues/807)
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References:

  [ 1 ] Bug #1777975 - CVE-2019-19269 proftpd: NULL pointer dereference when validating
the certificate of a client connecting to the server
        https://bugzilla.redhat.com/show_bug.cgi?id=1777975
  [ 2 ] Bug #1778258 - CVE-2019-19270 proftpd: failure to check for the appropriate field
of a CRL entry prevents some valid CRLs from being taken into account
        https://bugzilla.redhat.com/show_bug.cgi?id=1778258
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2019-bfacf1e958' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

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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