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slackwareSlackware Linux ProjectSSA-2023-216-02
HistoryAug 04, 2023 - 8:53 p.m.

[slackware-security] samba

2023-08-0420:53:11
Slackware Linux Project
www.slackware.com
23
samba security fix
slackware 15.0
samba upgrade
security patches
out-of-bounds read
smb2 packet signing
rpc service bug
infinite loop bug
type validation
disclosure of server-side path

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.041 Low

EPSS

Percentile

92.2%

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-4.18.5-i586-1_slack15.0.txz: Upgraded.
PLEASE NOTE: We are taking the unusual step of moving to the latest Samba
branch because Windows has made changes that break Samba 4.15.x. The last
4.15.x will be retained in /pasture as a fallback. There may be some
required configuration changes with this, but we’ve kept using MIT Kerberos
to try to have the behavior change as little as possible. Upgrade carefully.
This update fixes security issues:
When winbind is used for NTLM authentication, a maliciously crafted request
can trigger an out-of-bounds read in winbind and possibly crash it.
SMB2 packet signing is not enforced if an admin configured
“server signing = required” or for SMB2 connections to Domain Controllers
where SMB2 packet signing is mandatory.
An infinite loop bug in Samba’s mdssvc RPC service for Spotlight can be
triggered by an unauthenticated attacker by issuing a malformed RPC request.
Missing type validation in Samba’s mdssvc RPC service for Spotlight can be
used by an unauthenticated attacker to trigger a process crash in a shared
RPC mdssvc worker process.
As part of the Spotlight protocol Samba discloses the server-side absolute
path of shares and files and directories in search results.
For more information, see:
https://www.samba.org/samba/security/CVE-2022-2127.html
https://www.samba.org/samba/security/CVE-2023-3347.html
https://www.samba.org/samba/security/CVE-2023-34966.html
https://www.samba.org/samba/security/CVE-2023-34967.html
https://www.samba.org/samba/security/CVE-2023-34968.html
https://vulners.com/cve/CVE-2022-2127
https://vulners.com/cve/CVE-2023-3347
https://vulners.com/cve/CVE-2023-34966
https://vulners.com/cve/CVE-2023-34967
https://vulners.com/cve/CVE-2023-34968
(* 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-4.18.5-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-4.18.5-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/samba-4.18.5-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/samba-4.18.5-x86_64-1.txz

MD5 signatures:

Slackware 15.0 package:
144bd8d3c2f3deeac28f022e5cdcf285 samba-4.18.5-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
a79a128a1ce98e611d47a143a0883716 samba-4.18.5-x86_64-1_slack15.0.txz

Slackware -current package:
be2cd7839cb224e9567436351034f649 n/samba-4.18.5-i586-1.txz

Slackware x86_64 -current package:
86760d77f53cffe33ebc11578b67f09c n/samba-4.18.5-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
> upgradepkg samba-4.18.5-i586-1_slack15.0.txz

Then, if Samba is running restart it:

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.041 Low

EPSS

Percentile

92.2%