                   ==============================
                   Release Notes for Samba 4.13.5
                           March 09, 2021
                   ==============================


This is the latest stable release of the Samba 4.13 release series.


Changes since 4.13.4
--------------------

o  Trever L. Adams <trever.adams@gmail.com>
   * BUG 14634: s3:modules:vfs_virusfilter: Recent talloc changes cause infinite
     start-up failure.

o  Jeremy Allison <jra@samba.org>
   * BUG 13992: s3: libsmb: Add missing cli_tdis() in error path if encryption
     setup failed on temp proxy connection.
   * BUG 14604: smbd: In conn_force_tdis_done() when forcing a connection closed
     force a full reload of services.

o  Andrew Bartlett <abartlet@samba.org>
   * BUG 14593: dbcheck: Check Deleted Objects and reduce noise in reports about
     expired tombstones.

o  Ralph Boehme <slow@samba.org
   * BUG 14503: s3: Fix fcntl waf configure check.
   * BUG 14602: s3/auth: Implement "winbind:ignore domains".
   * BUG 14617: smbd: Use fsp->conn->session_info for the initial
     delete-on-close token.

o  Peter Eriksson <pen@lysator.liu.se>
   * BUG 14648: s3: VFS: nfs4_acls. Add missing TALLOC_FREE(frame) in error
     path.

o  Björn Jacke <bj@sernet.de>
   * BUG 14624: classicupgrade: Treat old never expires value right.

o  Volker Lendecke <vl@samba.org>
   * BUG 14636: g_lock: Fix uninitalized variable reads.

o  Stefan Metzmacher <metze@samba.org>
   * BUG 13898: s3:pysmbd: Fix fd leak in py_smbd_create_file().

o  Andreas Schneider <asn@samba.org>
   * BUG 14625: lib:util: Avoid free'ing our own pointer.

o  Paul Wise <pabs3@bonedaddy.net>
   * BUG 12505: HEIMDAL: krb5_storage_free(NULL) should work.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


Release notes for older releases follow:
----------------------------------------


                   ==============================
                   Release Notes for Samba 4.13.4
                          January 26, 2021
                   ==============================


This is the latest stable release of the Samba 4.13 release series.


Changes since 4.13.3
--------------------

o  Jeremy Allison <jra@samba.org>
   * BUG 14607: Work around special SMB2 IOCTL response behavior of NetApp Ontap
     7.3.7.
   * BUG 14612: Temporary DFS share setup doesn't set case parameters in the
     same way as a regular share definition does.

o  Dimitry Andric <dimitry@andric.com>
   * BUG 14605: lib: Avoid declaring zero-length VLAs in various messaging
     functions.

o  Andrew Bartlett <abartlet@samba.org>
   * BUG 14579: Do not create an empty DB when accessing a sam.ldb.

o  Ralph Boehme <slow@samba.org>
   * BUG 14596: vfs_fruit may close wrong backend fd.
   * BUG 14612: Temporary DFS share setup doesn't set case parameters in the
     same way as a regular share definition does.

o  Arne Kreddig <arne@kreddig.net>
   * BUG 14606: vfs_virusfilter: Allocate separate memory for config char*.

o  Stefan Metzmacher <metze@samba.org>
   * BUG 14596: vfs_fruit may close wrong backend fd.
   * BUG 14607: Work around special SMB2 IOCTL response behavior of NetApp Ontap
     7.3.7.

o  Andreas Schneider <asn@samba.org>
   * BUG 14601: The cache directory for the user gencache should be created
     recursively.

o  Martin Schwenke <martin@meltin.net>
   * BUG 14594: Be more flexible with repository names in CentOS 8 test
     environments.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   ==============================
                   Release Notes for Samba 4.13.3
                          December 15, 2020
                   ==============================


This is the latest stable release of the Samba 4.13 release series.


Changes since 4.13.2
--------------------

o  Jeremy Allison <jra@samba.org>
   * BUG 14210: libcli: smb2: Never print length if smb2_signing_key_valid()
     fails for crypto blob.
   * BUG 14486: s3: modules: gluster. Fix the error I made in preventing talloc
     leaks from a function. 
   * BUG 14515: s3: smbd: Don't overwrite contents of fsp->aio_requests[0] with
     NULL via TALLOC_FREE().
   * BUG 14568: s3: spoolss: Make parameters in call to user_ok_token() match
     all other uses.
   * BUG 14590: s3: smbd: Quiet log messages from usershares for an unknown
     share.

o  Ralph Boehme <slow@samba.org>
   * BUG 14248: samba process does not honor max log size.
   * BUG 14587: vfs_zfsacl: Add missing inherited flag on hidden "magic"
     everyone@ ACE.

o  Isaac Boukris <iboukris@gmail.com>
   * BUG 13124: s3-libads: Pass timeout to open_socket_out in ms.

o  Günther Deschner <gd@samba.org>
   * BUG 14486: s3-vfs_glusterfs: Always disable write-behind translator.

o  Volker Lendecke <vl@samba.org>
   * BUG 14517: smbclient: Fix recursive mget.
   * BUG 14581: clitar: Use do_list()'s recursion in clitar.c.

o  Anoop C S <anoopcs@samba.org>
   * BUG 14486: manpages/vfs_glusterfs: Mention silent skipping of write-behind
     translator.
   * BUG 14573: vfs_shadow_copy2: Preserve all open flags assuming ROFS.

o  Jones Syue <jonessyue@qnap.com>
   * BUG 14514: interface: Fix if_index is not parsed correctly.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------                   ==============================
                   Release Notes for Samba 4.13.2
                          November 03, 2020
                   ==============================


This is the latest stable release of the Samba 4.13 release series.

Major enhancements include:
  o BUG 14537: ctdb-common: Avoid aliasing errors during code optimization.
  o BUG 14486: vfs_glusterfs: Avoid data corruption with the write-behind
               translator.


=======
Details
=======

The GlusterFS write-behind performance translator, when used with Samba, could
be a source of data corruption. The translator, while processing a write call,
immediately returns success but continues writing the data to the server in the
background. This can cause data corruption when two clients relying on Samba to
provide data consistency are operating on the same file.

The write-behind translator is enabled by default on GlusterFS.
The vfs_glusterfs plugin will check for the presence of the translator and
refuse to connect if detected. Please disable the write-behind translator for
the GlusterFS volume to allow the plugin to connect to the volume.


Changes since 4.13.1
--------------------

o  Jeremy Allison <jra@samba.org>
   * BUG 14486: s3: modules: vfs_glusterfs: Fix leak of char 
     **lines onto mem_ctx on return.

o  Ralph Boehme <slow@samba.org>
   * BUG 14471: RN: vfs_zfsacl: Only grant DELETE_CHILD if ACL tag is special.

o  Alexander Bokovoy <ab@samba.org>
   * BUG 14538: smb.conf.5: Add clarification how configuration changes
     reflected by Samba.
   * BUG 14552: daemons: Report status to systemd even when running in
     foreground.
   * BUG 14553: DNS Resolver: Support both dnspython before and after 2.0.0.
 
o  Günther Deschner <gd@samba.org>
   * BUG 14486: s3-vfs_glusterfs: Refuse connection when write-behind xlator is
     present.

o  Amitay Isaacs <amitay@gmail.com>
   * BUG 14487: provision: Add support for BIND 9.16.x.
   * BUG 14537: ctdb-common: Avoid aliasing errors during code optimization.
   * BUG 14541: libndr: Avoid assigning duplicate versions to symbols.

o  Björn Jacke <bjacke@samba.org>
   * BUG 14522: docs: Fix default value of spoolss:architecture.

o  Laurent Menase <laurent.menase@hpe.com>
   * BUG 14388: winbind: Fix a memleak.

o  Stefan Metzmacher <metze@samba.org>
   * BUG 14531: s4:dsdb:acl_read: Implement "List Object" mode feature.

o  Sachin Prabhu <sprabhu@redhat.com>
   * BUG 14486: docs-xml/manpages: Add warning about write-behind translator for
     vfs_glusterfs.

o  Khem Raj <raj.khem@gmail.com>
   * nsswitch/nsstest.c: Avoid nss function conflicts with glibc nss.h.

o  Anoop C S <anoopcs@samba.org>
   * BUG 14530: vfs_shadow_copy2: Avoid closing snapsdir twice.

o  Andreas Schneider <asn@samba.org>
   * BUG 14547: third_party: Update resolv_wrapper to version 1.1.7.
   * BUG 14550: examples:auth: Do not install example plugin.

o  Martin Schwenke <martin@meltin.net>
   * BUG 14513: ctdb-recoverd: Drop unnecessary and broken code.

o  Andrew Walker <awalker@ixsystems.com>
   * BUG 14471: RN: vfs_zfsacl: Only grant DELETE_CHILD if ACL tag is special.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   ==============================
                   Release Notes for Samba 4.13.1
                          October 29, 2020
                   ==============================


This is a security release in order to address the following defects:

o CVE-2020-14318: Missing handle permissions check in SMB1/2/3 ChangeNotify.
o CVE-2020-14323: Unprivileged user can crash winbind.
o CVE-2020-14383: An authenticated user can crash the DCE/RPC DNS with easily
		  crafted records.


=======
Details
=======

o  CVE-2020-14318:
   The SMB1/2/3 protocols have a concept of "ChangeNotify", where a client can
   request file name notification on a directory handle when a condition such as
   "new file creation" or "file size change" or "file timestamp update" occurs.

   A missing permissions check on a directory handle requesting ChangeNotify
   meant that a client with a directory handle open only for
   FILE_READ_ATTRIBUTES (minimal access rights) could be used to obtain change
   notify replies from the server. These replies contain information that should
   not be available to directory handles open for FILE_READ_ATTRIBUTE only.

o  CVE-2020-14323:
   winbind in version 3.6 and later implements a request to translate multiple
   Windows SIDs into names in one request. This was done for performance
   reasons: The Microsoft RPC call domain controllers offer to do this
   translation, so it was an obvious extension to also offer this batch
   operation on the winbind unix domain stream socket that is available to local
   processes on the Samba server.

   Due to improper input validation a hand-crafted packet can make winbind
   perform a NULL pointer dereference and thus crash.

o  CVE-2020-14383:
   Some DNS records (such as MX and NS records) usually contain data in the
   additional section. Samba's dnsserver RPC pipe (which is an administrative
   interface not used in the DNS server itself) made an error in handling the
   case where there are no records present: instead of noticing the lack of
   records, it dereferenced uninitialised memory, causing the RPC server to
   crash. This RPC server, which also serves protocols other than dnsserver,
   will be restarted after a short delay, but it is easy for an authenticated
   non-admin attacker to crash it again as soon as it returns. The Samba DNS
   server itself will continue to operate, but many RPC services will not.

For more details, please refer to the security advisories.


Changes since 4.13.0
--------------------

o  Jeremy Allison <jra@samba.org>
   * BUG 14434: CVE-2020-14318: s3: smbd: Ensure change notifies can't get set
     unless the directory handle is open for SEC_DIR_LIST.

o  Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
   * BUG 12795: CVE-2020-14383: Remote crash after adding NS or MX records using
     'samba-tool'.
   * BUG 14472: CVE-2020-14383: Remote crash after adding MX records.

o  Volker Lendecke <vl@samba.org>
   * BUG 14436: CVE-2020-14323: winbind: Fix invalid lookupsids DoS.


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================


----------------------------------------------------------------------


                   ==============================
                   Release Notes for Samba 4.13.0
                          September 22, 2020
                   ==============================


This is the first stable release of the Samba 4.13 release series.
Please read the release notes carefully before upgrading.


ZeroLogon
=========

Please avoid to set "server schannel = no" and "server schannel= auto" on all
Samba domain controllers due to the wellknown ZeroLogon issue.

For details please see
https://www.samba.org/samba/security/CVE-2020-1472.html.


NEW FEATURES/CHANGES
====================

Python 3.6 or later required
----------------------------

Samba's minimum runtime requirement for python was raised to Python
3.5 with samba 4.12.  Samba 4.13 raises this minimum version to Python
3.6 both to access new features and because this is the oldest version
we test with in our CI infrastructure.

This is also the last release where it will be possible to build Samba
(just the file server) with Python versions 2.6 and 2.7.

As Python 2.7 has been End Of Life upstream since April 2020, Samba
is dropping ALL Python 2.x support in the NEXT release.

Samba 4.14 to be released in March 2021 will require Python 3.6 or
later to build.

wide links functionality
------------------------

For this release, the code implementing the insecure "wide links = yes"
functionality has been moved out of the core smbd code and into a separate
VFS module, vfs_widelinks. Currently this vfs module is implicitly loaded
by smbd as the last but one module before vfs_default if "wide links = yes"
is enabled on the share (note, the existing restrictions on enabling wide
links around the SMB1 "unix extensions" and the "allow insecure wide links"
parameters are still in force). The implicit loading was done to allow
existing users of "wide links = yes" to keep this functionality without
having to make a change to existing working smb.conf files.

Please note that the Samba developers recommend changing any Samba
installations that currently use "wide links = yes" to use bind mounts
as soon as possible, as "wide links = yes" is an inherently insecure
configuration which we would like to remove from Samba. Moving the
feature into a VFS module allows this to be done in a cleaner way
in future.

A future release to be determined will remove this implicit linkage,
causing administrators who need this functionality to have to explicitly
add the vfs_widelinks module into the "vfs objects =" parameter lists.
The release notes will be updated to note this change when it occurs.

NT4-like 'classic' Samba domain controllers
-------------------------------------------

Samba 4.13 deprecates Samba's original domain controller mode.

Sites using Samba as a Domain Controller should upgrade from the
NT4-like 'classic' Domain Controller to a Samba Active Directory DC
to ensure full operation with modern windows clients.

SMBv1 only protocol options deprecated
--------------------------------------

A number of smb.conf parameters for less-secure authentication methods
which are only possible over SMBv1 are deprecated in this release.


REMOVED FEATURES
================

The deprecated "ldap ssl ads" smb.conf option has been removed.


smb.conf changes
================

  Parameter Name                      Description                Default
  --------------                      -----------                -------
  ldap ssl ads                        Removed
  smb2 disable lock sequence checking Added                      No
  smb2 disable oplock break retry     Added                      No
  domain logons                       Deprecated                 no
  raw NTLMv2 auth                     Deprecated                 no
  client plaintext auth               Deprecated                 no
  client NTLMv2 auth                  Deprecated                 yes
  client lanman auth                  Deprecated                 no
  client use spnego                   Deprecated                 yes
  server require schannel:COMPUTER    Added


CHANGES SINCE 4.13.0rc5
=======================

o  Jeremy Allison <jra@samba.org>
   * BUG 14497: CVE-2020-1472(ZeroLogon): s3:rpc_server/netlogon: Protect
     netr_ServerPasswordSet2 against unencrypted passwords.

o  Günther Deschner <gd@samba.org>
   * BUG 14497: CVE-2020-1472(ZeroLogon): s3:rpc_server/netlogon: Support
     "server require schannel:WORKSTATION$ = no" about unsecure configurations.

o  Gary Lockyer <gary@catalyst.net.nz>
   * BUG 14497: CVE-2020-1472(ZeroLogon): s4 torture rpc: repeated bytes in
     client challenge.

o  Stefan Metzmacher <metze@samba.org>
   * BUG 14497: CVE-2020-1472(ZeroLogon): libcli/auth: Reject weak client
     challenges in netlogon_creds_server_init()
     "server require schannel:WORKSTATION$ = no".


CHANGES SINCE 4.13.0rc4
=======================

o  Andreas Schneider <asn@samba.org>
   * BUG 14399: waf: Only use gnutls_aead_cipher_encryptv2() for GnuTLS >
     3.6.14.
   * BUG 14467: s3:smbd: Fix %U substitutions if it contains a domain name.
   * BUG 14479: The created krb5.conf for 'net ads join' doesn't have a domain
     entry.

o  Stefan Metzmacher <metze@samba.org>
   * BUG 14482: Fix build problem if libbsd-dev is not installed.


CHANGES SINCE 4.13.0rc3
=======================

o  David Disseldorp <ddiss@samba.org>
   * BUG 14437: build: Toggle vfs_snapper using "--with-shared-modules".

o  Volker Lendecke <vl@samba.org>
   * BUG 14465: idmap_ad does not deal properly with a RFC4511 section 4.4.1
     response.

o  Stefan Metzmacher <metze@samba.org>
   * BUG 14428: PANIC: Assert failed in get_lease_type().
   * BUG 14465: idmap_ad does not deal properly with a RFC4511 section 4.4.1
     response.


CHANGES SINCE 4.13.0rc2
=======================

o  Andrew Bartlett <abartlet@samba.org>
   * BUG 14460: Deprecate domain logons, SMBv1 things.

o  Günther Deschner <gd@samba.org>
   * BUG 14318: docs: Add missing winexe manpage.

o  Christof Schmitt <cs@samba.org>
   * BUG 14166: util: Allow symlinks in directory_create_or_exist.

o  Martin Schwenke <martin@meltin.net>
   * BUG 14466: ctdb disable/enable can fail due to race condition.


CHANGES SINCE 4.13.0rc1
=======================

o  Andrew Bartlett <abartlet@samba.org>
   * BUG 14450: dbcheck: Allow a dangling forward link outside our known NCs.

o  Isaac Boukris <iboukris@gmail.com>
   * BUG 14462: Remove deprecated "ldap ssl ads" smb.conf option.

o  Volker Lendecke <vl@samba.org>
   * BUG 14435: winbind: Fix lookuprids cache problem.

o  Stefan Metzmacher <metze@samba.org>
   * BUG 14354: kdc:db-glue: Ignore KRB5_PROG_ETYPE_NOSUPP also for
     Primary:Kerberos.

o  Andreas Schneider <asn@samba.org>
   * BUG 14358: docs: Fix documentation for require_membership_of of
     pam_winbind.conf.

o  Martin Schwenke <martin@meltin.net>
   * BUG 14444: ctdb-scripts: Use nfsconf as a last resort get nfsd thread
     count.


KNOWN ISSUES
============

https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.13#Release_blocking_bugs


#######################################
Reporting bugs & Development Discussion
#######################################

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical IRC channel on irc.freenode.net.

If you do report problems then please try to send high quality
feedback. If you don't provide vital information to help us track down
the problem then you will probably be ignored.  All bug reports should
be filed under the Samba 4.1 and newer product in the project's Bugzilla
database (https://bugzilla.samba.org/).


======================================================================
== Our Code, Our Bugs, Our Responsibility.
== The Samba Team
======================================================================

