samba announce - Oct 2023 - Samba 4.19.1, 4.18.8 and 4.17.12 Security Releases are available for Download

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

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


o CVE-2023-3961:? Unsanitized pipe names allow SMB clients to connect as 
root to
 ????????????????? existing unix domain sockets on the file system.
https://www.samba.org/samba/security/CVE-2023-3961.html

o CVE-2023-4091:? SMB client can truncate files to 0 bytes by opening 
files with
 ????????????????? OVERWRITE disposition when using the acl_xattr Samba VFS
 ????????????????? module with the smb.conf setting
 ????????????????? "acl_xattr:ignore system acls = yes"
https://www.samba.org/samba/security/CVE-2023-4091.html

o CVE-2023-4154:? An RODC and a user with the GET_CHANGES right can view all
 ????????????????? attributes, including secrets and passwords. 
Additionally,
 ????????????????? the access check fails open on error conditions.
https://www.samba.org/samba/security/CVE-2023-4154.html

o CVE-2023-42669: Calls to the rpcecho server on the AD DC can request 
that the
 ????????????????? server block for a user-defined amount of time, denying
 ????????????????? service.
https://www.samba.org/samba/security/CVE-2023-42669.html

o CVE-2023-42670: Samba can be made to start multiple incompatible RPC
 ????????????????? listeners, disrupting service on the AD DC.
https://www.samba.org/samba/security/CVE-2023-42670.html


Changes
-------

o? Jeremy Allison <jra at samba.org>
 ?? * BUG 15422: CVE-2023-3961.

o? Andrew Bartlett <abartlet at samba.org>
 ?? * BUG 15424: CVE-2023-4154.
 ?? * BUG 15473: CVE-2023-42670.
 ?? * BUG 15474: CVE-2023-42669.

o? Ralph Boehme <slow at samba.org>
 ?? * BUG 15439: CVE-2023-4091.


#######################################
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-4.19.1.html
 ??????? https://www.samba.org/samba/history/samba-4.18.8.html
 ??????? https://www.samba.org/samba/history/samba-4.17.12.html

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

 ??????????????????????? --Enjoy
 ??????????????????????? The Samba Team