SUSE update for samba

Published: 2023-10-12

Risk	Medium
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2023-4091 CVE-2023-4154 CVE-2023-42669
CWE-ID	CWE-264 CWE-200 CWE-399
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Micro for Rancher Operating systems & Components / Operating system SUSE Linux Enterprise High Availability Extension 15 Operating systems & Components / Operating system SUSE Linux Enterprise Micro Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 Operating systems & Components / Operating system SUSE Linux Enterprise Real Time 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system SUSE Linux Enterprise Desktop 15 Operating systems & Components / Operating system Basesystem Module Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system samba-libs-64bit Operating systems & Components / Operating system package or component samba-client-64bit Operating systems & Components / Operating system package or component samba-client-libs-64bit-debuginfo Operating systems & Components / Operating system package or component samba-ad-dc-libs-64bit Operating systems & Components / Operating system package or component samba-libs-python3-64bit Operating systems & Components / Operating system package or component samba-winbind-libs-64bit Operating systems & Components / Operating system package or component samba-libs-python3-64bit-debuginfo Operating systems & Components / Operating system package or component samba-client-64bit-debuginfo Operating systems & Components / Operating system package or component samba-client-libs-64bit Operating systems & Components / Operating system package or component samba-devel-64bit Operating systems & Components / Operating system package or component samba-winbind-libs-64bit-debuginfo Operating systems & Components / Operating system package or component samba-libs-64bit-debuginfo Operating systems & Components / Operating system package or component samba-ad-dc-libs-64bit-debuginfo Operating systems & Components / Operating system package or component libsamba-policy0-python3-64bit Operating systems & Components / Operating system package or component libsamba-policy0-python3-64bit-debuginfo Operating systems & Components / Operating system package or component samba-ceph-debuginfo Operating systems & Components / Operating system package or component samba-ceph Operating systems & Components / Operating system package or component samba-doc Operating systems & Components / Operating system package or component samba-winbind-libs-32bit Operating systems & Components / Operating system package or component samba-client-libs-32bit Operating systems & Components / Operating system package or component samba-libs-32bit Operating systems & Components / Operating system package or component samba-ad-dc-libs-32bit Operating systems & Components / Operating system package or component samba-devel-32bit Operating systems & Components / Operating system package or component samba-client-32bit Operating systems & Components / Operating system package or component samba-client-32bit-debuginfo Operating systems & Components / Operating system package or component samba-libs-32bit-debuginfo Operating systems & Components / Operating system package or component samba-libs-python3-32bit Operating systems & Components / Operating system package or component samba-ad-dc-libs-32bit-debuginfo Operating systems & Components / Operating system package or component samba-libs-python3-32bit-debuginfo Operating systems & Components / Operating system package or component libsamba-policy0-python3-32bit-debuginfo Operating systems & Components / Operating system package or component samba-client-libs-32bit-debuginfo Operating systems & Components / Operating system package or component libsamba-policy0-python3-32bit Operating systems & Components / Operating system package or component samba-winbind-libs-32bit-debuginfo Operating systems & Components / Operating system package or component samba-libs-debuginfo Operating systems & Components / Operating system package or component samba-client-libs-debuginfo Operating systems & Components / Operating system package or component samba-debugsource Operating systems & Components / Operating system package or component samba-libs-python3-debuginfo Operating systems & Components / Operating system package or component samba-client Operating systems & Components / Operating system package or component ctdb Operating systems & Components / Operating system package or component samba-winbind Operating systems & Components / Operating system package or component samba Operating systems & Components / Operating system package or component libsamba-policy-devel Operating systems & Components / Operating system package or component samba-test Operating systems & Components / Operating system package or component samba-python3-debuginfo Operating systems & Components / Operating system package or component samba-winbind-debuginfo Operating systems & Components / Operating system package or component samba-dsdb-modules Operating systems & Components / Operating system package or component samba-winbind-libs-debuginfo Operating systems & Components / Operating system package or component ctdb-pcp-pmda-debuginfo Operating systems & Components / Operating system package or component samba-devel Operating systems & Components / Operating system package or component ctdb-pcp-pmda Operating systems & Components / Operating system package or component samba-libs-python3 Operating systems & Components / Operating system package or component samba-libs Operating systems & Components / Operating system package or component samba-debuginfo Operating systems & Components / Operating system package or component libsamba-policy-python3-devel Operating systems & Components / Operating system package or component libsamba-policy0-python3 Operating systems & Components / Operating system package or component samba-dsdb-modules-debuginfo Operating systems & Components / Operating system package or component ctdb-debuginfo Operating systems & Components / Operating system package or component samba-ldb-ldap Operating systems & Components / Operating system package or component samba-test-debuginfo Operating systems & Components / Operating system package or component samba-ad-dc Operating systems & Components / Operating system package or component samba-winbind-libs Operating systems & Components / Operating system package or component samba-gpupdate Operating systems & Components / Operating system package or component samba-ldb-ldap-debuginfo Operating systems & Components / Operating system package or component samba-client-debuginfo Operating systems & Components / Operating system package or component samba-tool Operating systems & Components / Operating system package or component samba-ad-dc-libs-debuginfo Operating systems & Components / Operating system package or component libsamba-policy0-python3-debuginfo Operating systems & Components / Operating system package or component samba-python3 Operating systems & Components / Operating system package or component samba-client-libs Operating systems & Components / Operating system package or component samba-ad-dc-libs Operating systems & Components / Operating system package or component samba-ad-dc-debuginfo Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU81872

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4091

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to truncate read-only files.

The vulnerability exists due to an error in the way SMB protocol implementation in Samba handles file operations. A remote user can request read-only access to files and then truncate them 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".

Mitigation

Update the affected package samba to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4

SUSE Linux Enterprise High Availability Extension 15: SP4

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Linux Enterprise Desktop 15: SP4

Basesystem Module: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

samba-libs-64bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-64bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-libs-64bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ad-dc-libs-64bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-python3-64bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-winbind-libs-64bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-python3-64bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-64bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-libs-64bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-devel-64bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-winbind-libs-64bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-64bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ad-dc-libs-64bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

libsamba-policy0-python3-64bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

libsamba-policy0-python3-64bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ceph-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ceph: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-doc: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-winbind-libs-32bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-libs-32bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-32bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ad-dc-libs-32bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-devel-32bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-32bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-32bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-32bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-python3-32bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ad-dc-libs-32bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-python3-32bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

libsamba-policy0-python3-32bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-libs-32bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

libsamba-policy0-python3-32bit: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-winbind-libs-32bit-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-libs-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-debugsource: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-python3-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

ctdb: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-winbind: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

libsamba-policy-devel: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-test: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-python3-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-winbind-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-dsdb-modules: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-winbind-libs-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

ctdb-pcp-pmda-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-devel: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

ctdb-pcp-pmda: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs-python3: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-libs: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

libsamba-policy-python3-devel: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

libsamba-policy0-python3: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-dsdb-modules-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

ctdb-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ldb-ldap: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-test-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ad-dc: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-winbind-libs: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-gpupdate: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ldb-ldap-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-tool: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ad-dc-libs-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

libsamba-policy0-python3-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-python3: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-client-libs: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ad-dc-libs: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

samba-ad-dc-debuginfo: before 4.15.13+git.691.3d3cea0641-150400.3.31.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20234059-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Information disclosure

EUVDB-ID: #VU81874

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4154

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to a design error in Samba's implementation of the DirSync control, which can allow replication of critical domain passwords and secrets by Active Directory accounts authorized to do some replication, but not to replicate sensitive attributes. A remote user can obtain sensitive information from the AD DC and compromise the Active Directory.