SUSE update for samba



Published: 2023-01-26
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-20251
CVE-2022-38023
CWE-ID CWE-362
CWE-254
Exploitation vector Network
Public exploit N/A
Vulnerable software
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SUSE Linux Enterprise Server for SAP
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

SUSE Linux Enterprise Realtime Extension
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing
Operating systems & Components / Operating system

openSUSE Leap Micro
Operating systems & Components / Operating system

SUSE Enterprise Storage
Operating systems & Components / Operating system

SUSE Manager Retail Branch Server
Operating systems & Components / Operating system

SUSE Linux Enterprise Micro
Operating systems & Components / Operating system

SUSE Linux Enterprise High Availability
Operating systems & Components / Operating system

SUSE Manager Server
Operating systems & Components / Operating system

SUSE Manager Proxy
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP Applications
Operating systems & Components / Operating system

ctdb-debuginfo
Operating systems & Components / Operating system package or component

ctdb
Operating systems & Components / Operating system package or component

samba-winbind-libs-32bit-debuginfo
Operating systems & Components / Operating system package or component

samba-winbind-libs-32bit
Operating systems & Components / Operating system package or component

samba-libs-32bit-debuginfo
Operating systems & Components / Operating system package or component

samba-libs-32bit
Operating systems & Components / Operating system package or component

samba-devel-32bit
Operating systems & Components / Operating system package or component

samba-client-libs-32bit-debuginfo
Operating systems & Components / Operating system package or component

samba-client-libs-32bit
Operating systems & Components / Operating system package or component

samba-client-32bit-debuginfo
Operating systems & Components / Operating system package or component

samba-client-32bit
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-ad-dc-libs-32bit-debuginfo
Operating systems & Components / Operating system package or component

samba-ad-dc-libs-32bit
Operating systems & Components / Operating system package or component

samba-winbind-libs-debuginfo
Operating systems & Components / Operating system package or component

samba-winbind-libs
Operating systems & Components / Operating system package or component

samba-winbind-debuginfo
Operating systems & Components / Operating system package or component

samba-winbind
Operating systems & Components / Operating system package or component

samba-tool
Operating systems & Components / Operating system package or component

samba-python3-debuginfo
Operating systems & Components / Operating system package or component

samba-python3
Operating systems & Components / Operating system package or component

samba-libs-python3-debuginfo
Operating systems & Components / Operating system package or component

samba-libs-python3
Operating systems & Components / Operating system package or component

samba-libs-debuginfo
Operating systems & Components / Operating system package or component

samba-libs
Operating systems & Components / Operating system package or component

samba-ldb-ldap-debuginfo
Operating systems & Components / Operating system package or component

samba-ldb-ldap
Operating systems & Components / Operating system package or component

samba-gpupdate
Operating systems & Components / Operating system package or component

samba-dsdb-modules-debuginfo
Operating systems & Components / Operating system package or component

samba-dsdb-modules
Operating systems & Components / Operating system package or component

samba-devel
Operating systems & Components / Operating system package or component

samba-client-debuginfo
Operating systems & Components / Operating system package or component

samba-client
Operating systems & Components / Operating system package or component

samba-ad-dc-libs-debuginfo
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

samba-ad-dc
Operating systems & Components / Operating system package or component

samba
Operating systems & Components / Operating system package or component

libsamba-policy0-python3-debuginfo
Operating systems & Components / Operating system package or component

libsamba-policy0-python3
Operating systems & Components / Operating system package or component

libsamba-policy-python3-devel
Operating systems & Components / Operating system package or component

libsamba-policy-devel
Operating systems & Components / Operating system package or component

samba-debugsource
Operating systems & Components / Operating system package or component

samba-debuginfo
Operating systems & Components / Operating system package or component

samba-client-libs-debuginfo
Operating systems & Components / Operating system package or component

samba-client-libs
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Race condition

EUVDB-ID: #VU71486

Risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20251

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a brute-force attack.

The vulnerability exists due to a race condition in Samba when incrementing bad password attempts. Each connection to Samba gets a separate process, and each process loads, increments, and saves the bad password count without any coordination. A remote attacker can perform a brute-force attack using multiple threats and bypass imposed limits on the number of allowed incorrect passwords.

Mitigation

Update the affected package samba to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise Server: 15-SP3-LTSS

SUSE Linux Enterprise Realtime Extension: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-SP3-ESPOS - 15-SP3-LTSS

openSUSE Leap Micro: 5.2

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Linux Enterprise Micro: 5.2

SUSE Linux Enterprise High Availability: 15-SP3

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

ctdb-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

ctdb: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-libs-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-libs-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-devel-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-libs-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-libs-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ceph-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ceph: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-libs-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-libs-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-libs-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-libs: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-tool: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-python3-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-python3: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-python3-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-python3: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ldb-ldap-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ldb-ldap: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-gpupdate: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-dsdb-modules-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-dsdb-modules: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-devel: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-libs-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-libs: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba: before 4.15.13+git.591.ab36624310c-150300.3.49.1

libsamba-policy0-python3-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

libsamba-policy0-python3: before 4.15.13+git.591.ab36624310c-150300.3.49.1

libsamba-policy-python3-devel: before 4.15.13+git.591.ab36624310c-150300.3.49.1

libsamba-policy-devel: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-debugsource: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-libs-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-libs: before 4.15.13+git.591.ab36624310c-150300.3.49.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230162-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

2) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU69151

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38023

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to security features bypass in Netlogon RPC. A remote attacker can bypass the Netlogon cryptography feature for signing and sealing traffic during Netlogon authentication.

Mitigation

Update the affected package samba to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise Server: 15-SP3-LTSS

SUSE Linux Enterprise Realtime Extension: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-SP3-ESPOS - 15-SP3-LTSS

openSUSE Leap Micro: 5.2

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Linux Enterprise Micro: 5.2

SUSE Linux Enterprise High Availability: 15-SP3

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

ctdb-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

ctdb: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-libs-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-libs-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-devel-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-libs-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-libs-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ceph-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ceph: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-libs-32bit-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-libs-32bit: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-libs-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-libs: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-winbind: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-tool: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-python3-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-python3: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-python3-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-python3: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-libs: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ldb-ldap-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ldb-ldap: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-gpupdate: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-dsdb-modules-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-dsdb-modules: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-devel: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-libs-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-libs: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-ad-dc: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba: before 4.15.13+git.591.ab36624310c-150300.3.49.1

libsamba-policy0-python3-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

libsamba-policy0-python3: before 4.15.13+git.591.ab36624310c-150300.3.49.1

libsamba-policy-python3-devel: before 4.15.13+git.591.ab36624310c-150300.3.49.1

libsamba-policy-devel: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-debugsource: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-libs-debuginfo: before 4.15.13+git.591.ab36624310c-150300.3.49.1

samba-client-libs: before 4.15.13+git.591.ab36624310c-150300.3.49.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230162-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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