Lucene search

K
slackwareSlackware Linux ProjectSSA-2023-284-03
HistoryOct 11, 2023 - 6:45 a.m.

[slackware-security] samba

2023-10-1106:45:49
Slackware Linux Project
www.slackware.com
29
samba
slackware
security
upgrade
rodc
samba vfs module
cve-2023-3961
cve-2023-4091
cve-2023-4154
cve-2023-42669
cve-2023-42670
ftp hosting
installation

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.002 Low

EPSS

Percentile

61.9%

New samba packages are available for Slackware 15.0 and -current to
fix security issues.

Here are the details from the Slackware 15.0 ChangeLog:

patches/packages/samba-4.18.8-i586-1_slack15.0.txz: Upgraded.
This is a security release in order to address the following defects:
Unsanitized pipe names allow SMB clients to connect as root to existing
unix domain sockets on the file system.
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”
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.
Calls to the rpcecho server on the AD DC can request that the server block
for a user-defined amount of time, denying service.
Samba can be made to start multiple incompatible RPC listeners, disrupting
service on the AD DC.
For more information, see:
https://www.samba.org/samba/security/CVE-2023-3961.html
https://www.samba.org/samba/security/CVE-2023-4091.html
https://www.samba.org/samba/security/CVE-2023-4154.html
https://www.samba.org/samba/security/CVE-2023-42669.html
https://www.samba.org/samba/security/CVE-2023-42670.html
https://vulners.com/cve/CVE-2023-3961
https://vulners.com/cve/CVE-2023-4091
https://vulners.com/cve/CVE-2023-4154
https://vulners.com/cve/CVE-2023-42669
https://vulners.com/cve/CVE-2023-42670
(* Security fix *)

Where to find the new packages:

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the “Get Slack” section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/samba-4.18.8-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/samba-4.18.8-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/samba-4.19.1-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/samba-4.19.1-x86_64-1.txz

MD5 signatures:

Slackware 15.0 package:
7a7344afe9d59b27b908c8a927cfa9ae samba-4.18.8-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
c723758c3f69631631b40117ba48752d samba-4.18.8-x86_64-1_slack15.0.txz

Slackware -current package:
a9467bac9d8ca0fe92ad92b80b8d406a n/samba-4.19.1-i586-1.txz

Slackware x86_64 -current package:
1b038aa7dce7800f0ae8ea4026bec019 n/samba-4.19.1-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
> upgradepkg samba-4.18.8-i586-1_slack15.0.txz

Then, if Samba is running restart it:

> /etc/rc.d/rc.samba restart

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.002 Low

EPSS

Percentile

61.9%