Description
The Samba AD DC administration tool, when operating against a remote LDAP server, will by default send new or reset passwords over a signed-only connection.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Samba | samba 4.18.1, samba 4.17.7, samba 4.16.10 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | samba | 2:4.17.7+dfsg-1 | — |
| Debian 13 | samba | 2:4.17.7+dfsg-1 | — |
| Debian 12 | samba | 2:4.17.7+dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | samba | 2:4.15.13+dfsg-0ubuntu1.1 | USN-5993-1 |
| Ubuntu 20.04 LTS | samba | 2:4.15.13+dfsg-0ubuntu0.20.04.2 | USN-5993-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | samba | No fix yet | — |
| Ubuntu Pro 16.04 LTS | samba | No fix yet | — |
| Ubuntu Pro 14.04 LTS | samba | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | ldb | 2.4.4-150400.4.11.1 | SUSE-SU-2023:1689-1 |
| SLES 15 SP4 | samba | 4.15.13+git.636.53d93c5b9d6-150400.3.23.1 | SUSE-SU-2023:1689-1 |
| SLES 15 SP3 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SLES 15 SP3 | samba | 4.15.13+git.636.53d93c5b9d6-150300.3.52.1 | SUSE-SU-2023:1687-1 |
| SLES 15 SP2 | samba | 4.11.14+git.386.cc81f3dca2-150200.4.47.1 | SUSE-SU-2023:1682-1 |
| SLES 15 SP1 | samba | 4.9.5+git.554.abee30cf06-150100.3.77.1 | SUSE-SU-2023:1683-1 |
| SLES 12 SP5 | samba | 4.15.13+git.594.449ec4a79a1-3.80.1 | SUSE-SU-2023:1684-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP3 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SLES for SAP 15 SP3 | samba | 4.15.13+git.636.53d93c5b9d6-150300.3.52.1 | SUSE-SU-2023:1687-1 |
| SLES for SAP 15 SP2 | samba | 4.11.14+git.386.cc81f3dca2-150200.4.47.1 | SUSE-SU-2023:1682-1 |
| SLES for SAP 15 SP1 | samba | 4.9.5+git.554.abee30cf06-150100.3.77.1 | SUSE-SU-2023:1683-1 |
| SLES for SAP 12 SP5 | samba | 4.15.13+git.594.449ec4a79a1-3.80.1 | SUSE-SU-2023:1684-1 |
| SLE Real Time 15 SP3 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SLE Real Time 15 SP3 | samba | 4.15.13+git.636.53d93c5b9d6-150300.3.52.1 | SUSE-SU-2023:1687-1 |
| SLE Micro 5.4 | ldb | 2.4.4-150400.4.11.1 | SUSE-SU-2023:1689-1 |
| SLE Micro 5.4 | samba | 4.15.13+git.636.53d93c5b9d6-150400.3.23.1 | SUSE-SU-2023:1689-1 |
| SLE Micro 5.3 | ldb | 2.4.4-150400.4.11.1 | SUSE-SU-2023:1689-1 |
| SLE Micro 5.3 | samba | 4.15.13+git.636.53d93c5b9d6-150400.3.23.1 | SUSE-SU-2023:1689-1 |
| SLE Micro 5.2 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SLE Micro 5.2 | samba | 4.15.13+git.636.53d93c5b9d6-150300.3.52.1 | SUSE-SU-2023:1687-1 |
| SLE Micro 5.1 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SLE HPC 15 SP3 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SLE HPC 15 SP3 | samba | 4.15.13+git.636.53d93c5b9d6-150300.3.52.1 | SUSE-SU-2023:1687-1 |
| SLE HPC 15 SP2 | samba | 4.11.14+git.386.cc81f3dca2-150200.4.47.1 | SUSE-SU-2023:1682-1 |
| SLE HPC 15 SP1 | samba | 4.9.5+git.554.abee30cf06-150100.3.77.1 | SUSE-SU-2023:1683-1 |
| SUSE Manager Server 4.2 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SUSE Manager Server 4.2 | samba | 4.15.13+git.636.53d93c5b9d6-150300.3.52.1 | SUSE-SU-2023:1687-1 |
| SUSE Manager Proxy 4.2 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SUSE Manager Proxy 4.2 | samba | 4.15.13+git.636.53d93c5b9d6-150300.3.52.1 | SUSE-SU-2023:1687-1 |
| SUSE Enterprise Storage 7.1 | ldb | 2.4.4-150300.3.23.1 | SUSE-SU-2023:1687-1 |
| SUSE Enterprise Storage 7.1 | samba | 4.15.13+git.636.53d93c5b9d6-150300.3.52.1 | SUSE-SU-2023:1687-1 |
| SUSE Enterprise Storage 7 | samba | 4.11.14+git.386.cc81f3dca2-150200.4.47.1 | SUSE-SU-2023:1682-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.18.1+git.298.4ccf830b2a4-1.1 | openSUSE-SU-2024:12831-1 |
| openSUSE Leap 15.4 | ldb | 2.4.4-150400.4.11.1 | SUSE-SU-2023:1689-1 |
| openSUSE Leap 15.4 | samba | 4.9.5+git.554.abee30cf06-150100.3.77.1 | SUSE-SU-2023:1689-1, SUSE-SU-2023:1683-1, SUSE-SU-2023:1682-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | ldb | 2.4.4-150400.4.11.1 | SUSE-SU-2023:1689-1 |
| openSUSE Leap Micro 5.3 | samba | 4.15.13+git.636.53d93c5b9d6-150400.3.23.1 | SUSE-SU-2023:1689-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | samba +31 | 2:4.17.8-0.amzn2023.0.2 | ALAS2023-2023-206 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | samba | 4.18.3-1 | — |
| Azure Linux 2 (CBL-Mariner) | samba | No fix yet | — |
Advisories 9
- WID-SEC-2023-0796 Samba: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 31, 2026
- USN-5993-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2023:1683-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1689-1 Security update for ldb, samba SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12831-1 ctdb-4.18.1+git.298.4ccf830b2a4-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1684-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1682-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:1687-1 Security update for ldb, samba SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2023-2023-206 Important: samba security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 7, 2023