Difference between revisions of "Samba 4.15 Features added/changed"

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Samba 4.15 is [[Samba_Release_Planning#Current_Stable_Release|'''Current Stable Release''']].
 
  +
Samba 4.15 is [[Samba_Release_Planning#Maintenance_Mode|'''Maintenance Mode''']].
  +
Samba 4.15.7 Available for Download
  +
  +
==Samba 4.15.7==
  +
:Release Notes for Samba 4.15.7
  +
:April 26, 2022
  +
  +
===This is the latest stable release of the Samba 4.15 release series.===
  +
  +
===Changes since 4.15.6===
  +
* Jeremy Allison <jra at samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14831 BUG #14831]: Share and server swapped in smbget password prompt.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15022 BUG #15022]: Durable handles won't reconnect if the leased file is written to.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15023 BUG #15023] rmdir silently fails if directory contains unreadable files and hide unreadable is yes.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15038 BUG #15038]: SMB2_CLOSE_FLAGS_FULL_INFORMATION fails to return information on renamed file handle.
  +
* Ralph Boehme <slow at samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14957 BUG #14957]: vfs_shadow_copy2 breaks "smbd async dosmode" sync fallback.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15035 BUG #15035]: shadow_copy2 fails listing snapshotted dirs with shadow:fixinodes.
  +
* Samuel Cabrero <scabrero at samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15046 BUG #15046]: PAM Kerberos authentication incorrectly fails with a clock skew error.
  +
* Pavel Filipenský <pfilipen at redhat.com>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15041 BUG #15041]: username map - samba erroneously applies unix group memberships to user account entries.
  +
* Elia Geretto <elia.f.geretto at gmail.com>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14983 BUG #14983]: NT_STATUS_ACCESS_DENIED translates into EPERM instead of EACCES in SMBC_server_internal.
  +
* Stefan Metzmacher <metze at samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=13879 BUG #13879]: Simple bind doesn't work against an RODC (with non-preloaded users).
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14641 BUG #14641]: Crash of winbind on RODC.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14865 BUG #14865]: uncached logon on RODC always fails once.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14951 BUG #14951]: KVNO off by 100000.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15001 BUG #15001]: LDAP simple binds should honour "old password allowed period".
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15003 BUG #15003]: wbinfo -a doesn't work reliable with upn names.
  +
* Garming Sam <garming at catalyst.net.nz>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=13879 BUG #13879]: Simple bind doesn't work against an RODC (with non-preloaded users).
  +
* Christof Schmitt <cs at samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15027 BUG #15027]: Uninitialized litemask in variable in vfs_gpfs module.
  +
* Andreas Schneider <asn at samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=15016 BUG #15016]: Regression: create krb5 conf = yes doesn't work with a single KDC.
  +
  +
[https://www.samba.org/samba/history/samba-4.15.7.html Release Notes Samba 4.15.7]
  +
  +
==Samba 4.15.6==
  +
:Release Notes for Samba 4.15.6
  +
:March 15, 2022
  +
  +
===This is the latest stable release of the Samba 4.15 release series.===
  +
  +
===Changes since 4.15.5===
  +
  +
* Jeremy Allison <jra@samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14169 BUG #14169]: Renaming file on DFS root fails with NT_STATUS_OBJECT_PATH_NOT_FOUND.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14737 BUG #14737]: Samba does not response STATUS_INVALID_PARAMETER when opening 2 objects with same lease key.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14938 BUG #14938]: NT error code is not set when overwriting a file during rename in libsmbclient.
  +
* Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14996 BUG #14996]: Fix ldap simple bind with TLS auditing.
  +
* Ralph Boehme <slow@samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14674 BUG #14674]: net ads info shows LDAP Server: 0.0.0.0 depending on contacted server.
  +
* Samuel Cabrero <scabrero@suse.de>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14979 BUG #14979]: Problem when winbind renews Kerberos.
  +
* Günther Deschner <gd@samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=8691 BUG #8691]: pam_winbind will not allow gdm login if password about to expire.
  +
* Pavel Filipenský <pfilipen@redhat.com>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14971 BUG #14971] : virusfilter_vfs_openat: Not scanned: Directory or special file.
  +
* Björn Jacke <bj@sernet.de>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=13631 BUG #13631]: DFS fix for AIX broken.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14974 BUG #14974]: Solaris and AIX acl modules: wrong function arguments.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=7239 BUG #7239]: Function aixacl_sys_acl_get_file not declared / coredump.
  +
* Volker Lendecke <vl@samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14900 BUG #14900]: Regression: Samba 4.15.2 on macOS segfaults intermittently during strcpy in tdbsam_getsampwnam.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14989 BUG #14989]: Fix a use-after-free in SMB1 server.
  +
* Stefan Metzmacher <metze@samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14968 BUG #14968]: smb2_signing_decrypt_pdu() may not decrypt with gnutls_aead_cipher_decrypt() from gnutls before 3.5.2.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14984 BUG #14984]: changing the machine password against an RODC likely destroys the domain join.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14993 BUG #14993]: authsam_make_user_info_dc() steals memory from its struct ldb_message *msg argument.
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14995 BUG #14995]: Use Heimdal 8.0 (pre) rather than an earlier snapshot.
  +
* Andreas Schneider <asn@samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14967 BUG #14967]: Samba autorid fails to map AD users if id rangesize fits in the id range only once.
  +
  +
[https://www.samba.org/samba/history/samba-4.15.6.html Release Notes Samba 4.15.6]
  +
  +
==Samba 4.15.5==
  +
:Release Notes for Samba 4.15.5
  +
:January 31, 2022
  +
  +
===This is a security release in order to address the following defects:===
  +
  +
* [https://www.samba.org/samba/security/CVE-2021-44141.html CVE-2021-44141]: UNIX extensions in SMB1 disclose whether the outside target of a symlink exists.
  +
* [https://www.samba.org/samba/security/CVE-2021-44142.html CVE-2021-44142]: Out-of-Bound Read/Write on Samba vfs_fruit module.
  +
* [https://www.samba.org/samba/security/CVE-2022-0336.html CVE-2022-0336]: Re-adding an SPN skips subsequent SPN conflict checks.
  +
  +
===Changes since 4.15.4===
  +
* Jeremy Allison <jra@samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14911 BUG 14911]: [https://www.samba.org/samba/security/CVE-2021-44141.html CVE-2021-44141]: UNIX extensions in SMB1 disclose whether the outside target of a symlink exists.
  +
* Ralph Boehme <slow@samba.org>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14914 BUG 14914]: [https://www.samba.org/samba/security/CVE-2021-44142.html CVE-2021-44142]: Out-of-Bound Read/Write on Samba vfs_fruit module.
  +
* Joseph Sutton <josephsutton@catalyst.net.nz>
  +
:* [https://bugzilla.samba.org/show_bug.cgi?id=14950 BUG 14950]: [https://www.samba.org/samba/security/CVE-2022-0336.html CVE-2022-0336]: Re-adding an SPN skips subsequent SPN conflict checks.
  +
  +
[https://www.samba.org/samba/history/samba-4.15.5.html Release Notes Samba 4.15.5]
  +
 
==Samba 4.15.4==
 
==Samba 4.15.4==
 
:Release Notes for Samba 4.15.4
 
:Release Notes for Samba 4.15.4
Line 12: Line 111:
 
:* [https://bugzilla.samba.org/show_bug.cgi?id=14939 BUG #14939]: smbclient -L doesn't set "client max protocol" to NT1 before calling the "Reconnecting with SMB1 for workgroup listing" path.
 
:* [https://bugzilla.samba.org/show_bug.cgi?id=14939 BUG #14939]: smbclient -L doesn't set "client max protocol" to NT1 before calling the "Reconnecting with SMB1 for workgroup listing" path.
 
:* [https://bugzilla.samba.org/show_bug.cgi?id=14944 BUG #14944]: Missing pop_sec_ctx() in error path inside close_directory().
 
:* [https://bugzilla.samba.org/show_bug.cgi?id=14944 BUG #14944]: Missing pop_sec_ctx() in error path inside close_directory().
* Pavel Filipenský <pfilipen@redhat.com>
+
* Pavel Filipenský <pfilipen@redhat.com>
 
:* [https://bugzilla.samba.org/show_bug.cgi?id=14940 BUG #14940]: Cross device copy of the crossrename module always fails.
 
:* [https://bugzilla.samba.org/show_bug.cgi?id=14940 BUG #14940]: Cross device copy of the crossrename module always fails.
 
:* [https://bugzilla.samba.org/show_bug.cgi?id=14941 BUG #14941]: symlinkat function from VFS cap module always fails with an error.
 
:* [https://bugzilla.samba.org/show_bug.cgi?id=14941 BUG #14941]: symlinkat function from VFS cap module always fails with an error.

Latest revision as of 16:29, 30 April 2022

Samba 4.15 is Maintenance Mode. Samba 4.15.7 Available for Download

Samba 4.15.7

Release Notes for Samba 4.15.7
April 26, 2022

This is the latest stable release of the Samba 4.15 release series.

Changes since 4.15.6

*  Jeremy Allison <jra at samba.org>
  • BUG #14831: Share and server swapped in smbget password prompt.
  • BUG #15022: Durable handles won't reconnect if the leased file is written to.
  • BUG #15023 rmdir silently fails if directory contains unreadable files and hide unreadable is yes.
  • BUG #15038: SMB2_CLOSE_FLAGS_FULL_INFORMATION fails to return information on renamed file handle.
  • Ralph Boehme <slow at samba.org>
  • BUG #14957: vfs_shadow_copy2 breaks "smbd async dosmode" sync fallback.
  • BUG #15035: shadow_copy2 fails listing snapshotted dirs with shadow:fixinodes.
  • Samuel Cabrero <scabrero at samba.org>
  • BUG #15046: PAM Kerberos authentication incorrectly fails with a clock skew error.
  • Pavel Filipenský <pfilipen at redhat.com>
  • BUG #15041: username map - samba erroneously applies unix group memberships to user account entries.
  • Elia Geretto <elia.f.geretto at gmail.com>
  • BUG #14983: NT_STATUS_ACCESS_DENIED translates into EPERM instead of EACCES in SMBC_server_internal.
  • Stefan Metzmacher <metze at samba.org>
  • BUG #13879: Simple bind doesn't work against an RODC (with non-preloaded users).
  • BUG #14641: Crash of winbind on RODC.
  • BUG #14865: uncached logon on RODC always fails once.
  • BUG #14951: KVNO off by 100000.
  • BUG #15001: LDAP simple binds should honour "old password allowed period".
  • BUG #15003: wbinfo -a doesn't work reliable with upn names.
  • Garming Sam <garming at catalyst.net.nz>
  • BUG #13879: Simple bind doesn't work against an RODC (with non-preloaded users).
  • Christof Schmitt <cs at samba.org>
  • BUG #15027: Uninitialized litemask in variable in vfs_gpfs module.
  • Andreas Schneider <asn at samba.org>
  • BUG #15016: Regression: create krb5 conf = yes doesn't work with a single KDC.
Release Notes Samba 4.15.7

Samba 4.15.6

Release Notes for Samba 4.15.6
March 15, 2022

This is the latest stable release of the Samba 4.15 release series.

Changes since 4.15.5

  • Jeremy Allison <jra@samba.org>
  • BUG #14169: Renaming file on DFS root fails with NT_STATUS_OBJECT_PATH_NOT_FOUND.
  • BUG #14737: Samba does not response STATUS_INVALID_PARAMETER when opening 2 objects with same lease key.
  • BUG #14938: NT error code is not set when overwriting a file during rename in libsmbclient.
  • Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
  • BUG #14996: Fix ldap simple bind with TLS auditing.
  • Ralph Boehme <slow@samba.org>
  • BUG #14674: net ads info shows LDAP Server: 0.0.0.0 depending on contacted server.
  • Samuel Cabrero <scabrero@suse.de>
  • Günther Deschner <gd@samba.org>
  • BUG #8691: pam_winbind will not allow gdm login if password about to expire.
  • Pavel Filipenský <pfilipen@redhat.com>
  • BUG #14971 : virusfilter_vfs_openat: Not scanned: Directory or special file.
  • Björn Jacke <bj@sernet.de>
  • BUG #13631: DFS fix for AIX broken.
  • BUG #14974: Solaris and AIX acl modules: wrong function arguments.
  • BUG #7239: Function aixacl_sys_acl_get_file not declared / coredump.
  • Volker Lendecke <vl@samba.org>
  • BUG #14900: Regression: Samba 4.15.2 on macOS segfaults intermittently during strcpy in tdbsam_getsampwnam.
  • BUG #14989: Fix a use-after-free in SMB1 server.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #14968: smb2_signing_decrypt_pdu() may not decrypt with gnutls_aead_cipher_decrypt() from gnutls before 3.5.2.
  • BUG #14984: changing the machine password against an RODC likely destroys the domain join.
  • BUG #14993: authsam_make_user_info_dc() steals memory from its struct ldb_message *msg argument.
  • BUG #14995: Use Heimdal 8.0 (pre) rather than an earlier snapshot.
  • Andreas Schneider <asn@samba.org>
  • BUG #14967: Samba autorid fails to map AD users if id rangesize fits in the id range only once.
Release Notes Samba 4.15.6

Samba 4.15.5

Release Notes for Samba 4.15.5
January 31, 2022

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

  • CVE-2021-44141: UNIX extensions in SMB1 disclose whether the outside target of a symlink exists.
  • CVE-2021-44142: Out-of-Bound Read/Write on Samba vfs_fruit module.
  • CVE-2022-0336: Re-adding an SPN skips subsequent SPN conflict checks.

Changes since 4.15.4

  • Jeremy Allison <jra@samba.org>
  • Ralph Boehme <slow@samba.org>
  • Joseph Sutton <josephsutton@catalyst.net.nz>
  Release Notes Samba 4.15.5

Samba 4.15.4

Release Notes for Samba 4.15.4
January 19, 2022

This is the latest stable release of the Samba 4.15 release series.

Changes since 4.15.3

  • Jeremy Allison <jra@samba.org>
  • BUG #14928: Duplicate SMB file_ids leading to Windows client cache poisoning.
  • BUG #14939: smbclient -L doesn't set "client max protocol" to NT1 before calling the "Reconnecting with SMB1 for workgroup listing" path.
  • BUG #14944: Missing pop_sec_ctx() in error path inside close_directory().
  • Pavel Filipenský <pfilipen@redhat.com>
  • BUG #14940: Cross device copy of the crossrename module always fails.
  • BUG #14941: symlinkat function from VFS cap module always fails with an error.
  • BUG #14942: Fix possible fsp pointer deference.
  • Volker Lendecke <vl@samba.org>
  • Stefan Metzmacher <metze@samba.org>
  • BUG #14932: Failed to parse NTLMv2_RESPONSE length 95 - Buffer Size Error - NT_STATUS_BUFFER_TOO_SMALL.
  • BUG #14935: Can't connect to Windows shares not requiring authentication using KDE/Gnome.
  • Andreas Schneider <asn@samba.org>
  • BUG #14945: "smbd --build-options" no longer works without an smb.conf file.
  • Jones Syue <jonessyue@qnap.com>
  • BUG #14928: Duplicate SMB file_ids leading to Windows client cache poisoning.
Release Notes Samba 4.15.4

Samba 4.15.3

Release Notes for Samba 4.15.3
December 08, 2021

This is the latest stable release of the Samba 4.15 release series.

Important Notes

There have been a few regressions in the security release 4.15.2:

  • CVE-2020-25717: A user on the domain can become root on domain members.
PLEASE [RE-]READ!
The instructions have been updated and some workarounds initially adviced for 4.15.2 are no longer required and should be reverted in most cases.
  • BUG #14902: User with multiple spaces (eg Fred<space><space>Nurk) become un-deletable.
While this release should fix this bug, it is adviced to have a look at the bug report for more detailed information, see https://bugzilla.samba.org/show_bug.cgi?id=14902.

Changes since 4.15.2

  • Jeremy Allison <jra@samba.org>
  • BUG #14878: Recursive directory delete with veto files is broken in 4.15.0.
  • BUG #14879: A directory containing dangling symlinks cannot be deleted by SMB2 alone when they are the only entry in the directory.
  • BUG #14892: SIGSEGV in rmdir_internals/synthetic_pathref - dirfsp is used uninitialized in rmdir_internals().
  • Andrew Bartlett <abartlet@samba.org>
  • BUG #14694: MaxQueryDuration not honoured in Samba AD DC LDAP.
  • BUG #14901: The CVE-2020-25717 username map [script] advice has undesired side effects for the local nt token.
  • BUG #14902: User with multiple spaces (eg Fred<space><space>Nurk) become un-deletable.
  • Ralph Boehme <slow@samba.org>
  • BUG #14127: Avoid storing NTTIME_THAW (-2) as value on disk.
  • BUG #14882: smbXsrv_client_global record validation leads to crash if existing record points at non-existing process.
  • BUG #14890: Crash in vfs_fruit asking for fsp_get_io_fd() for an XATTR call.
  • BUG #14897: Samba process doesn't log to logfile.
  • BUG #14907: set_ea_dos_attribute() fallback calling get_file_handle_for_metadata() triggers locking.tdb assert.
  • BUG #14922: Kerberos authentication on standalone server in MIT realm broken.
  • BUG #14923: Segmentation fault when joining the domain.
  • Alexander Bokovoy <ab@samba.org>
  • BUG #14903: Support for ROLE_IPA_DC is incomplete.
  • Günther Deschner <gd@samba.org>
  • BUG #14767: rpcclient cannot connect to ncacn_ip_tcp services anymore
  • BUG #14893: winexe crashes since 4.15.0 after popt parsing.
  • Volker Lendecke <vl@samba.org>
  • BUG #14908: net ads status -P broken in a clustered environment.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #14788: Memory leak if ioctl(FSCTL_VALIDATE_NEGOTIATE_INFO) fails before smbd_smb2_ioctl_send.
  • BUG #14882: smbXsrv_client_global record validation leads to crash if existing record points at non-existing process.
  • BUG #14899: winbindd doesn't start when "allow trusted domains" is off.
  • BUG #14901: The CVE-2020-25717 username map [script] advice has undesired side effects for the local nt token.
  • Andreas Schneider <asn@samba.org>
  • BUG #14767: rpcclient cannot connect to ncacn_ip_tcp services anymore.
  • BUG #14883: smbclient login without password using '-N' fails with NT_STATUS_INVALID_PARAMETER on Samba AD DC.
  • BUG #14912: A schannel client incorrectly detects a downgrade connecting to an AES only server.
  • BUG #14921: Possible null pointer dereference in winbind.
  • Andreas Schneider <asn@cryptomilk.org>
  • BUG #14846: Fix -k legacy option for client tools like smbclient, rpcclient, net, etc.
  • Martin Schwenke <martin@meltin.net>
  • Joseph Sutton <josephsutton@catalyst.net.nz>
  • BUG #14694: MaxQueryDuration not honoured in Samba AD DC LDAP.
  • BUG #14901: The CVE-2020-25717 username map [script] advice has undesired side effects for the local nt token.
  • Andrew Walker <awalker@ixsystems.com>
Release Notes Samba 4.15.3

Samba 4.15.2

Release Notes for Samba 4.15.2
November 9, 2021

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

  • CVE-2016-2124 (SMB1 client connections can be downgraded to plaintext authentication)
  • CVE-2020-25717 (A user in an AD Domain could become root on domain members)
PLEASE READ! There are important behaviour changes described
  • CVE-2020-25718 (Samba AD DC did not correctly sandbox Kerberos tickets issued by an RODC)
  • CVE-2020-25719 (Samba AD DC did not always rely on the SID and PAC in Kerberos tickets)
  • CVE-2020-25721 (Kerberos acceptors need easy access to stable AD identifiers (eg objectSid))
  • CVE-2020-25722 (Samba AD DC did not do sufficient access and conformance checking of data stored)
  • CVE-2021-3738 (Use after free in Samba AD DC RPC server)
  • CVE-2021-23192 (Subsequent DCE/RPC fragment injection vulnerability)

Changes since 4.13.13

  • Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
  • Andrew Bartlett <abartlet@samba.org>
  • Ralph Boehme <slow@samba.org>
  • Alexander Bokovoy <ab@samba.org>
  • Samuel Cabrero <scabrero@samba.org>
  • Nadezhda Ivanova <nivanova@symas.com>
  • Stefan Metzmacher <metze@samba.org>
  • Andreas Schneider <asn@samba.org>
  • Joseph Sutton <josephsutton@catalyst.net.nz>
   Release Notes Samba 4.15.2

Samba 4.15.1

Release Notes for Samba 4.15.1
October 27, 2021

This is the latest stable release of the Samba 4.15 release series.

Changes since 4.15.0

  • Jeremy Allison <jra@samba.org>
  • BUG #14682: vfs_shadow_copy2: core dump in make_relative_path.
  • BUG #14685: Log clutter from filename_convert_internal.
  • BUG #14862: MacOSX compilation fixes.
  • Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
  • Andrew Bartlett <abartlet@samba.org>
  • BUG #14642: Provide a fix for MS CVE-2020-17049 in Samba [SECURITY] 'Bronze bit' S4U2Proxy Constrained Delegation bypass in Samba with embedded Heimdal.
  • BUG #14836: Python ldb.msg_diff() memory handling failure.
  • BUG #14845: "in" operator on ldb.Message is case sensitive.
  • BUG #14848: Release LDB 2.4.1 for Samba 4.15.1.
  • BUG #14854: samldb_krbtgtnumber_available() looks for incorrect string.
  • BUG #14871: Fix Samba support for UF_NO_AUTH_DATA_REQUIRED.
  • BUG #14874: Allow special chars like "@" in samAccountName when generating the salt.
  • Ralph Boehme <slow@samba.org>
  • BUG #14826: Correctly ignore comments in CTDB public addresses file.
  • Isaac Boukris <iboukris@gmail.com>
  • BUG #14642: Provide a fix for MS CVE-2020-17049 in Samba [SECURITY] 'Bronze bit' S4U2Proxy Constrained Delegation bypass in Samba with embedded Heimdal.
  • Viktor Dukhovni <viktor@twosigma.com>
  • Pavel Filipenský <pfilipen@redhat.com>
  • BUG #14852: Fix that child winbindd logs to log.winbindd instead of log.wb-<DOMAIN>.
  • Luke Howard <lukeh@padl.com>
  • BUG #14642: Provide a fix for MS CVE-2020-17049 in Samba [SECURITY] 'Bronze bit' S4U2Proxy Constrained Delegation bypass in Samba with embedded Heimdal.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #14855: SMB3 cancel requests should only include the MID together with AsyncID when AES-128-GMAC is used.
  • Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
  • Andreas Schneider <asn@samba.org>
  • BUG #14870: Prepare to operate with MIT krb5 >= 1.20.
  • Martin Schwenke <martin@meltin.net>
  • BUG #14826: Correctly ignore comments in CTDB public addresses file.
  • Joseph Sutton <josephsutton@catalyst.net.nz>
  • BUG #14642: Provide a fix for MS CVE-2020-17049 in Samba [SECURITY] 'Bronze bit' S4U2Proxy Constrained Delegation bypass in Samba with embedded Heimdal.
  • BUG #14836: Python ldb.msg_diff() memory handling failure.
  • BUG #14845: "in" operator on ldb.Message is case sensitive.
  • BUG #14864: Heimdal prefers RC4 over AES for machine accounts.
  • BUG #14868: rodc_rwdc test flaps.
  • BUG #14871: Fix Samba support for UF_NO_AUTH_DATA_REQUIRED.
  • BUG #14874: Allow special chars like "@" in samAccountName when generating the salt.
  • Nicolas Williams <nico@twosigma.com>
  • BUG #14642: Provide a fix for MS CVE-2020-17049 in Samba [SECURITY] 'Bronze bit' S4U2Proxy Constrained Delegation bypass in Samba with embedded Heimdal.
Release Notes Samba 4.15.1.

Samba 4.15.0

Release Notes for Samba 4.15.0
September 20, 2021

Release Announcements

This is the first stable release of the Samba 4.15 release series. Please read the release notes carefully before upgrading.

Removed SMB (development) dialects

The following SMB (development) dialects are no longer supported: SMB2_22, SMB2_24 and SMB3_10. They are were only supported by Windows technical preview builds. They used to be useful in order to test against the latest Windows versions, but it's no longer useful to have them. If you have them explicitly specified in your smb.conf or an the command line, you need to replace them like this:

  • SMB2_22 => SMB3_00
  • SMB2_24 => SMB3_00
  • SMB3_10 => SMB3_11
Note: that it's typically not useful to specify "client max protocol" or "server max protocol" explicitly to a specific dialect, just leave them unspecified or specify the value "default".

New GPG key

The GPG release key for Samba releases changed from:

pub   dsa1024/6F33915B6568B7EA 2007-02-04 [SC] [expires: 2021-02-05]
      Key fingerprint = 52FB C0B8 6D95 4B08 4332  4CDC 6F33 915B 6568 B7EA
uid                 [  full  ] Samba Distribution Verification Key <samba-bugs@samba.org>
sub   elg2048/9C6ED163DA6DFB44 2007-02-04 [E] [expires: 2021-02-05]

to the following new key:

pub   rsa4096/AA99442FB680B620 2020-12-21 [SC] [expires: 2022-12-21]
      Key fingerprint = 81F5 E283 2BD2 545A 1897  B713 AA99 442F B680 B620
uid                 [ultimate] Samba Distribution Verification Key <samba-bugs@samba.org>
sub   rsa4096/97EF9386FBFD4002 2020-12-21 [E] [expires: 2022-12-21]
 

Starting from Jan 21th 2021, all Samba releases will be signed with the new key.

See also GPG_AA99442FB680B620_replaces_6F33915B6568B7EA.txt

New minimum version for the experimental MIT KDC

The build of the AD DC using the system MIT Kerberos, an experimental feature, now requires MIT Kerberos 1.19. An up-to-date Fedora 34 has this version and has backported fixes for the KDC crash bugs CVE-2021-37750 and CVE-2021-36222.

NEW FEATURES/CHANGES

VFS

The effort to modernize Samba's VFS interface is complete and Samba 4.15.0 ships with a modernized VFS designed for the post SMB1 world.

For details please refer to the documentation at source3/modules/The_New_VFS.txt or visit the The_New_VFS.

Bind DLZ: Added the ability to set allow/deny lists for zone transfer clients

Up to now, any client could use a DNS zone transfer request to the bind server, and get an answer from Samba. Now the default behaviour will be to deny those request. Two new options have been added to manage the list of authorized/denied clients for zone transfer requests. In order to be accepted, the request must be issued by a client that is in the allow list and NOT in the deny list.

"server multi channel support" no longer experimental

This option is enabled by default starting with 4.15 (on Linux and FreeBSD). Due to dependencies on kernel APIs of Linux or FreeBSD, it's only possible to use this feature on Linux and FreeBSD for now.

samba-tool available without the ad-dc

The *samba-tool' command is now available when samba is configured "--without-ad-dc". Not all features will work, and some ad-dc specific options have been disabled. The 'samba-tool domain' options, for example, are limited when no ad-dc is present. Samba must still be built with ads in order to enable samba-tool.

Improved command line user experience

Samba utilities did not consistently implement their command line interface. A number of options were requiring to specify values in one tool and not in the other, some options meant different in different tools.

These should be stories of the past now. A new command line parser has been implemented with sanity checking. Also the command line interface has been simplified and provides better control for encryption, signing and kerberos.

Previously many tools silently ignored unknown options. To prevent unexpected behaviour all tools will now consistently reject unknown options.

Also several command line options have a smb.conf variable to control the default now.

All tools are logging to stderr by default. You can use "--debug-stdout" to change the behavior. All servers will log to stderr at early startup until logging is setup to go to a file by default.

Common parser:

Options added:

--client-protection=off|sign|encrypt

Options renamed:

--kerberos       ->    --use-kerberos=required|desired|off
--krb5-ccache    ->    --use-krb5-ccache=CCACHE
--scope          ->    --netbios-scope=SCOPE
--use-ccache     ->    --use-winbind-ccache

Options removed:

-e|--encrypt
-C removed from --use-winbind-ccache
-i removed from --netbios-scope
-S|--signing
Duplicates in command line utils

ldbadd/ldbdel/ldbedit/ldbmodify/ldbrename/ldbsearch:

-e is still available as an alias for --editor, as it used to be.
-s is no longer reported as an alias for --configfile, it never worked that way as it was shadowed by '-s' for '--scope'.

ndrdump:

-l is not available for --load-dso anymore

net:

-l is not available for --long anymore

sharesec:

-V is not available for --viewsddl anymore

smbcquotas:

--user        ->    --quota-user

nmbd:

--log-stdout  ->    --debug-stdout

smbd:

--log-stdout  ->    --debug-stdout

winbindd:

--log-stdout  ->    --debug-stdout

Scanning of trusted domains and enterprise principals

As an artifact from the NT4 times, we still scanned the list of trusted domains on winbindd startup. This is wrong as we never can get a full picture in Active Directory. It is time to change the default value to "No". Also with this change we always use enterprise principals for Kerberos so that the DC will be able to redirect ticket requests to the right DC. This is e.g. needed for one way trusts. The options `winbind use krb5 enterprise principals` and `winbind scan trusted domains` will be deprecated in one of the next releases.

Support for Offline Domain Join (ODJ)

The net utility is now able to support the offline domain join feature as known from the Windows djoin.exe command for many years. Samba's implementation is accessible via the 'net offlinejoin' subcommand. It can provision computers and request offline joining for both Windows and Unix machines. It is also possible to provision computers from Windows (using djoin.exe) and use the generated data in Samba's 'net' utility. The existing options for the provisioning and joining steps are documented in the net(8) manpage.

'samba-tool dns zoneoptions' for aging control

The 'samba-tool dns zoneoptions' command can be used to turn aging on and off, alter the refresh and no-refresh periods, and manipulate the timestamps of existing records.

To turn aging on for a zone, you can use something like this:

 samba-tool dns zoneoptions --aging=1 --refreshinterval=306600

which turns on aging and ensures no records less than five years old are aged out and scavenged. After aging has been on for sufficient time for records to be renewed, the command

 samba-tool dns zoneoptions --refreshinterval=168

will set the refresh period to the standard seven days. Using this two step process will help prevent the temporary loss of dynamic records if scavenging happens before their first renewal.


Marking old records as static or dynamic with 'samba-tool'

A bug in Samba versions prior to 4.9 meant records that were meant to be static were marked as dynamic and vice versa. To fix the timestamps in these domains, it is possible to use the following options, preferably before turning aging on.

  --mark-old-records-static
  --mark-records-dynamic-regex
  --mark-records-static-regex

The "--mark-old-records-static" option will make records older than the specified date static (that is, with a zero timestamp). For example, if you upgraded to Samba 4.9 in November 2018, you could use ensure no old records will be mistakenly interpreted as dynamic using the following option:

 samba-tool dns zoneoptions --mark-old-records-static=2018-11-30

Then, if you know that that will have marked some records as static that should be dynamic, and you know which those are due to your naming scheme, you can use commands like:

 samba-tool dns zoneoptions --mark-records-dynamic-regex='\w+-desktop'

where '\w+-desktop' is a perl-compatible regular expression that will match 'bob-desktop', 'alice-desktop', and so on.

These options are deliberately long and cumbersome to type, so people have a chance to think before they get to the end. You can make a mess if you get it wrong.

All 'samba-tool dns zoneoptions' modes can be given a "--dry-run/-n" argument that allows you to inspect the likely results before going ahead.

NOTE: for aging to work, you need to have "dns zone scavenging = yes" set in the smb.conf of at least one server.

DNS tombstones are now deleted as appropriate

When all the records for a DNS name have been deleted, the node is put in a tombstoned state (separate from general AD object tombstoning, which deleted nodes also go through). These tombstones should be cleaned up periodically. Due to a conflation of scavenging and tombstoning, we have only been deleting tombstones when aging is enabled.

If you have a lot of tombstoned DNS nodes (that is, DNS names for which you have removed all the records), cleaning up these DNS tombstones may take a noticeable time.

DNS tombstones use a consistent timestamp format

DNS records use an hours-since-1601 timestamp format except for in the case of tombstone records where a 100-nanosecond-intervals-since-1601 format is used (this latter format being the most common in Windows). We had mixed that up, which might have had strange effects in zones where aging was enabled (and hence tombstone timestamps were used).

samba-tool dns update and RPC changes

The dnsserver DCERPC pipe can be used by 'samba-tool' and Windows tools to manipulate dns records on the remote server. A bug in Samba meant it was not possible to update an existing DNS record to change the TTL. The general behaviour of RPC updates is now closer to that of Windows.

'samba-tool dns update' is now a bit more careful in rejecting and warning you about malformed IPv4 and IPv6 addresses.

CVE-2021-3671: Crash in Heimdal KDC and updated security release policy

An unuthenticated user can crash the AD DC KDC by omitting the server name in a TGS-REQ. Per Samba's updated security process a specific security release was not made for this issue as it is a recoverable Denial Of Service. See Samba_Security_Process

samba-tool domain backup offline with the LMDB backend

'samba-tool domain backup offline', when operating with the LMDB backend now correctly takes out locks against concurrent modification of the database during the backup. If you use this tool on a Samba AD DC using LMDB, you should upgrade to this release for safer backups.

REMOVED FEATURES

  • Tru64 ACL support has been removed from this release. The last supported release of Tru64 UNIX was in 2012.
  • NIS support has been removed from this release. This is not available in Linux distributions anymore.
  • The DLZ DNS plugin is no longer built for Bind versions 9.8 and 9.9, which have been out of support since 2018.


smb.conf changes

 Parameter Name                          Description     Default
 --------------                          -----------     -------
 client use kerberos                     New             desired
 client max protocol                     Values Removed
 client min protocol                     Values Removed
 client protection                       New             default
 client smb3 signing algorithms          New             see man smb.conf
 client smb3 encryption algorithms       New             see man smb.conf
 preopen:posix-basic-regex               New             No
 preopen:nomatch_log_level               New             5
 preopen:match_log_level                 New             5
 preopen:nodigits_log_level              New             1
 preopen:founddigits_log_level           New             3
 preopen:reset_log_level                 New             5
 preopen:push_log_level                  New             3
 preopen:queue_log_level                 New             10
 server max protocol                     Values Removed
 server min protocol                     Values Removed
 server multi channel support            Changed         Yes (on Linux and FreeBSD)
 server smb3 signing algorithms          New             see man smb.conf
 server smb3 encryption algorithms       New             see man smb.conf
 winbind use krb5 enterprise principals  Changed         Yes
 winbind scan trusted domains            Changed         No


CHANGES SINCE 4.15.0rc6

  • Andrew Bartlett <abartlet@samba.org>
  • BUG #14791: All the ways to specify a password are not documented.
  • Ralph Boehme <slow@samba.org>
  • BUG #14790: vfs_btrfs compression support broken.
  • BUG #14828: Problems with commandline parsing.
  • BUG #14829: smbd crashes when "ea support" is set to no.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #14825: "{client,server} smb3 {signing,encryption} algorithms" should use the same strings as smbstatus output.
  • BUG #14828: Problems with commandline parsing.
  • Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
  • BUG #8773: smbd fails to run as root because it belongs to more than 16 groups on MacOS X.
  • Martin Schwenke <martin@meltin.net>
  • BUG #14784: Fix CTDB flag/status update race conditions.

CHANGES SINCE 4.15.0rc5

  • Andrew Bartlett <abartlet@samba.org>
  • BUG #14806: Address a signifcant performance regression in database access in the AD DC since Samba 4.12.
  • BUG #14807: Fix performance regression in lsa_LookupSids3/LookupNames4 since Samba 4.9 by using an explicit database handle cache.
  • BUG #14817: An unuthenticated user can crash the AD DC KDC by omitting the server name in a TGS-REQ.
  • BUG #14818: Address flapping samba_tool_drs_showrepl test.
  • BUG #14819: Address flapping dsdb_schema_attributes test.
  • Luke Howard <lukeh@padl.com>
  • BUG #14817: An unuthenticated user can crash the AD DC KDC by omitting the server name in a TGS-REQ.
  • Gary Lockyer <gary@catalyst.net.nz>
  • BUG #14817: An unuthenticated user can crash the AD DC KDC by omitting the server name in a TGS-REQ.
  • Andreas Schneider <asn@samba.org>
  • BUG #14817: An unuthenticated user can crash the AD DC KDC by omitting the server name in a TGS-REQ.
  • Joseph Sutton <josephsutton@catalyst.net.nz>
  • BUG #14817: An unuthenticated user can crash the AD DC KDC by omitting the server name in a TGS-REQ.

CHANGES SINCE 4.15.0rc4

  • Jeremy Allison <jra@samba.org>
  • BUG #14809: Shares with variable substitutions cause core dump upon connection from MacOS Big Sur 11.5.2.
  • BUG #14816: Fix pathref open of a filesystem fifo in the DISABLE_OPATH build.
  • Andrew Bartlett <abartlet@samba.org>
  • BUG #14815: A subset of tests from Samba's selftest system were not being run, while others were run twice.
  • Ralph Boehme <slow@samba.org>
  • BUG #14771: Some VFS operations on pathref (O_PATH) handles fail on GPFS.
  • BUG #14787: net conf list crashes when run as normal user,
  • BUG #14803: smbd/winbindd started in daemon mode generate output on stderr/stdout.
  • BUG #14804: winbindd can crash because idmap child state is not fully initialized.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #14771: Some VFS operations on pathref (O_PATH) handles fail on GPFS.

CHANGES SINCE 4.15.0rc3

  • Bjoern Jacke <bj@sernet.de>
  • BUG #14800: util_sock: fix assignment of sa_socklen.

CHANGES SINCE 4.15.0rc2

  • Jeremy Allison <jra@samba.org>
  • BUG #14760: vfs_streams_depot directory creation permissions and store location problems.
  • BUG #14766: vfs_ceph openat() doesn't cope with dirfsp != AT_FDCW.
  • BUG #14769: smbd panic on force-close share during offload write.
  • BUG #14805: OpenDir() loses the correct errno return.
  • Ralph Boehme <slow@samba.org>
  • BUG #14795: copy_file_range() may fail with EOPNOTSUPP.
  • Stefan Metzmacher <metze@samba.org>
  • BUG #14793: Start the SMB encryption as soon as possible.
  • Andreas Schneider <asn@samba.org>
  • BUG #14779: Winbind should not start if the socket path is too long.
  • Noel Power <noel.power@suse.com>
  • BUG #14760: vfs_streams_depot directory creation permissions and store location problems.

CHANGES SINCE 4.15.0rc1

  • Andreas Schneider <asn@samba.org>
  • BUG #14768: smbd/winbind should load the registry if configured
  • BUG #14777: do not quote passed argument of configure script
  • BUG #14779: Winbind should not start if the socket path is too long
  • Stefan Metzmacher <metze@samba.org>
  • BUG #14607: tree connect failed: NT_STATUS_INVALID_PARAMETER
  • BUG #14764: aes-256-gcm and aes-256-ccm doesn't work in the server
  • Ralph Boehme <slow@samba.org>
  • BUG #14700: file owner not available when file unredable
  • Jeremy Allison <jra@samba.org>
  • BUG #14607: tree connect failed: NT_STATUS_INVALID_PARAMETER
  • BUG #14759: 4.15rc can leak meta-data about the directory containing the share path

KNOWN ISSUES

Release_Planning_for_Samba_4.15#Release_blocking_bugs

 [https://www.samba.org/samba/history/samba-4.15.0.html Release Notes Samba 4.15.0.