Description
A flaw was found in samba. A race condition in the password lockout code may lead to the risk of brute force attacks being successful if special conditions are met.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | samba | Samba 4.1 and newer | — |
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 | 2:4.17.2+dfsg-3 | — |
| Debian 13 | samba | 2:4.17.2+dfsg-3 | — |
| Debian 12 | samba | 2:4.17.2+dfsg-3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | samba | 2:4.15.13+dfsg-0ubuntu1 | USN-5822-1 |
| Ubuntu 20.04 LTS | samba | 2:4.13.17~dfsg-0ubuntu1.20.04.4 | USN-5822-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | samba | No fix yet | — |
| 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 | samba | 4.15.13+git.591.ab36624310c-150400.3.19.1 | SUSE-SU-2023:0160-1 |
| SLES 15 SP3 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SLES 15 SP2 | samba | 4.11.14+git.384.5dc2c21dce-150200.4.44.1 | SUSE-SU-2023:0163-1 |
| SLES 15 SP1 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1 |
| SLES 12 SP5 | samba | 4.15.13+git.534.0d9f8ece26-3.77.1 | SUSE-SU-2023:0164-1 |
Show 21 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | samba | 4.6.16+git.384.9fec958bed-3.76.1 | SUSE-SU-2023:0126-1 |
| SLES 12 SP2 | samba | 4.4.2-38.55.1 | SUSE-SU-2023:0122-1 |
| SLES for SAP 15 SP3 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SLES for SAP 15 SP2 | samba | 4.11.14+git.384.5dc2c21dce-150200.4.44.1 | SUSE-SU-2023:0163-1 |
| SLES for SAP 15 SP1 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1 |
| SLES for SAP 12 SP5 | samba | 4.15.13+git.534.0d9f8ece26-3.77.1 | SUSE-SU-2023:0164-1 |
| SLES for SAP 12 SP4 | samba | 4.6.16+git.384.9fec958bed-3.76.1 | SUSE-SU-2023:0126-1 |
| SLE Real Time 15 SP3 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SLE Micro 5.3 | samba | 4.15.13+git.591.ab36624310c-150400.3.19.1 | SUSE-SU-2023:0160-1 |
| SLE Micro 5.2 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SLE HPC 15 SP3 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SLE HPC 15 SP2 | samba | 4.11.14+git.384.5dc2c21dce-150200.4.44.1 | SUSE-SU-2023:0163-1 |
| SLE HPC 15 SP1 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1 |
| SUSE OpenStack Cloud Crowbar 9 | samba | 4.6.16+git.384.9fec958bed-3.76.1 | SUSE-SU-2023:0126-1 |
| SUSE OpenStack Cloud 9 | samba | 4.6.16+git.384.9fec958bed-3.76.1 | SUSE-SU-2023:0126-1 |
| SUSE Manager Server 4.2 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SUSE Manager Retail Branch Server 4.2 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SUSE Manager Proxy 4.2 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SUSE Enterprise Storage 7.1 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
| SUSE Enterprise Storage 7 | samba | 4.11.14+git.384.5dc2c21dce-150200.4.44.1 | SUSE-SU-2023:0620-1, SUSE-SU-2023:0163-1 |
| SUSE Enterprise Storage 6 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.17.1+git.270.17afe7cb6b-1.1 | openSUSE-SU-2024:12435-1 |
| openSUSE Leap 15.4 | samba | 4.9.5+git.552.fec1a5e57a-150100.3.73.1 | SUSE-SU-2023:0222-1, SUSE-SU-2023:0163-1, SUSE-SU-2023:0160-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.3 | samba | 4.15.13+git.591.ab36624310c-150400.3.19.1 | SUSE-SU-2023:0160-1 |
| openSUSE Leap Micro 5.2 | samba | 4.15.13+git.591.ab36624310c-150300.3.49.1 | SUSE-SU-2023:0162-1 |
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 11
- USN-5822-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2023:0620-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12435-1 ctdb-4.17.1+git.270.17afe7cb6b-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0163-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0126-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0160-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0164-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0222-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0162-1 Security update for samba SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2023:0122-1 Security update for samba SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2022-1799 Samba: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Mar 6, 2023