- Update from version 4.17.3 to 4.17.4
- Update of rootfile (Only the x86_64 rootfile updated with this patch)
- Changelog
Release Notes for Samba 4.17.4
This is the latest stable release of the Samba 4.17 release series.
It also contains security changes in order to address the following defects:
o CVE-2022-37966: This is the Samba CVE for the Windows Kerberos
RC4-HMAC Elevation of Privilege Vulnerability
disclosed by Microsoft on Nov 8 2022.
A Samba Active Directory DC will issue weak rc4-hmac
session keys for use between modern clients and servers
despite all modern Kerberos implementations supporting
the aes256-cts-hmac-sha1-96 cipher.
On Samba Active Directory DCs and members
'kerberos encryption types = legacy' would force
rc4-hmac as a client even if the server supports
aes128-cts-hmac-sha1-96 and/or aes256-cts-hmac-sha1-96.
https://www.samba.org/samba/security/CVE-2022-37966.html
o CVE-2022-37967: This is the Samba CVE for the Windows
Kerberos Elevation of Privilege Vulnerability
disclosed by Microsoft on Nov 8 2022.
A service account with the special constrained
delegation permission could forge a more powerful
ticket than the one it was presented with.
https://www.samba.org/samba/security/CVE-2022-37967.html
o CVE-2022-38023: The "RC4" protection of the NetLogon Secure channel uses the
same algorithms as rc4-hmac cryptography in Kerberos,
and so must also be assumed to be weak.
https://www.samba.org/samba/security/CVE-2022-38023.html
Note that there are several important behavior changes
included in this release, which may cause compatibility problems
interacting with system still expecting the former behavior.
Please read the advisories of CVE-2022-37966,
CVE-2022-37967 and CVE-2022-38023 carefully!
samba-tool got a new 'domain trust modify' subcommand
This allows "msDS-SupportedEncryptionTypes" to be changed
on trustedDomain objects. Even against remote DCs (including Windows)
using the --local-dc-ipaddress= (and other --local-dc-* options).
See 'samba-tool domain trust modify --help' for further details.
smb.conf changes
Parameter Name Description Default
-------------- ----------- -------
allow nt4 crypto Deprecated no
allow nt4 crypto:COMPUTERACCOUNT New
kdc default domain supported enctypes New (see manpage)
kdc supported enctypes New (see manpage)
kdc force enable rc4 weak session keys New No
reject md5 clients New Default, Deprecated Yes
reject md5 servers New Default, Deprecated Yes
server schannel Deprecated Yes
server schannel require seal New, Deprecated Yes
server schannel require seal:COMPUTERACCOUNT New
winbind sealed pipes Deprecated Yes
Changes since 4.17.3
o Jeremy Allison <jra@samba.org>
* BUG 15224: pam_winbind uses time_t and pointers assuming they are of the
same size.
o Andrew Bartlett <abartlet@samba.org>
* BUG 14929: CVE-2022-44640 [SECURITY] Upstream Heimdal free of
user-controlled pointer in FAST.
* BUG 15219: Heimdal session key selection in AS-REQ examines wrong entry.
* BUG 15237: CVE-2022-37966.
* BUG 15258: filter-subunit is inefficient with large numbers of knownfails.
o Ralph Boehme <slow@samba.org>
* BUG 15240: CVE-2022-38023.
* BUG 15252: smbd allows setting FILE_ATTRIBUTE_TEMPORARY on directories.
o Stefan Metzmacher <metze@samba.org>
* BUG 13135: The KDC logic arround msDs-supportedEncryptionTypes differs from
Windows.
* BUG 14611: CVE-2021-20251 [SECURITY] Bad password count not incremented
atomically.
* BUG 15203: CVE-2022-42898 [SECURITY] krb5_pac_parse() buffer parsing
vulnerability.
* BUG 15206: libnet: change_password() doesn't work with
dcerpc_samr_ChangePasswordUser4().
* BUG 15219: Heimdal session key selection in AS-REQ examines wrong entry.
* BUG 15230: Memory leak in snprintf replacement functions.
* BUG 15237: CVE-2022-37966.
* BUG 15240: CVE-2022-38023.
* BUG 15253: RODC doesn't reset badPwdCount reliable via an RWDC
(CVE-2021-20251 regression).
o Noel Power <noel.power@suse.com>
* BUG 15224: pam_winbind uses time_t and pointers assuming they are of the
same size.
o Anoop C S <anoopcs@samba.org>
* BUG 15198: Prevent EBADF errors with vfs_glusterfs.
o Andreas Schneider <asn@samba.org>
* BUG 15237: CVE-2022-37966.
* BUG 15243: %U for include directive doesn't work for share listing
(netshareenum).
* BUG 15257: Stack smashing in net offlinejoin requestodj.
o Joseph Sutton <josephsutton@catalyst.net.nz>
* BUG 15197: Windows 11 22H2 and Samba-AD 4.15 Kerberos login issue.
* BUG 15219: Heimdal session key selection in AS-REQ examines wrong entry.
* BUG 15231: CVE-2022-37967.
* BUG 15237: CVE-2022-37966.
o Nicolas Williams <nico@twosigma.com>
* BUG 14929: CVE-2022-44640 [SECURITY] Upstream Heimdal free of
user-controlled pointer in FAST.
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
projects / ipfire-2.x.git / commitdiff
