[Announce] Samba 4.22.2 Available for Download

Jule Anger janger at samba.org
Thu Jun 5 15:51:40 UTC 2025


Release Announcements
---------------------

This is the latest stable release of the Samba 4.22 release series.
It contains the security-relevant bugfix CVE-2025-0620:

     smbd doesn't pick up group membership changes
     when re-authenticating an expired SMB session
     https://www.samba.org/samba/security/CVE-2025-0620.html


Description of CVE-2025-0620
-----------------------------

     With Kerberos authentication SMB sessions typically have an
     associated lifetime, requiring re-authentication by the
     client when the session expires. As part of the
     re-authentication, Samba receives the current group
     membership information and is expected to reflect this
     change in further SMB request processing.

     For historic reasons, Samba maintains a cache of
     associations between a user's impersonation information and
     connected shares. A recent change in this cache caused Samba
     to not reflect group membership changes from session
     re-authentication when processing further SMB requests.

     As a result, when an administrator removes a user from a
     particular group in Active Directory, this change will not
     become effective unless the user disconnects from the server
     and establishes a new connection.


Changes since 4.22.1
--------------------

o  Ralph Boehme <slow at samba.org>
    * BUG 15707: (CVE-2025-0620) [SECURITY] CVE-2025-0620: smbd doesn't 
pick up
      group membership changes when re-authenticating an expired SMB
      session.
    * BUG 15861: Profile sync fails due to Directory Leases.

o  Pavel Filipenský <pfilipensky at samba.org>
    * BUG 15727: net ad join fails with "Failed to join domain: failed 
to create
      kerberos keytab".

o  Stefan Metzmacher <metze at samba.org>
    * BUG 15851: dcerpcd not able to bind to listening port.

o  Anoop C S <anoopcs at samba.org>
    * BUG 15819: vfs_ceph_snapshots fails to list snapshots for entries 
at any
      level beyond share root.

o  Martin Schwenke <mschwenke at ddn.com>
    * BUG 15858: CTDB does not put nodes running NFS into grace on graceful
      shutdown.


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

Please discuss this release on the samba-technical mailing list or by
joining the #samba-technical:matrix.org matrix room, or
#samba-technical IRC channel on irc.libera.chat.

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
======================================================================



================
Download Details
================

The uncompressed tarballs and patch files have been signed
using GnuPG (ID AA99442FB680B620).  The source code can be downloaded
from:

         https://download.samba.org/pub/samba/stable/

The release notes are available online at:

         https://www.samba.org/samba/history/samba-4.22.2.html

Our Code, Our Bugs, Our Responsibility.
(https://bugzilla.samba.org/)

                         --Enjoy
                         The Samba Team




More information about the samba-announce mailing list