Description
Samba does not validate the Validated-DNS-Host-Name right for the dNSHostName attribute which could permit unprivileged users to write it.
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 | No fix yet | — |
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 | 4.15.8+git.527.8d0c05d313e-150400.3.14.1 | SUSE-SU-2022:3244-1 |
| SLES 15 SP3 | samba | 4.15.8+git.527.8d0c05d313e-150300.3.40.2 | SUSE-SU-2022:3955-1 |
| SLES 2 | samba | 4.15.8+git.527.8d0c05d313e-150300.3.40.2 | SUSE-SU-2022:3955-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.2 | samba | 4.15.8+git.527.8d0c05d313e-150300.3.40.2 | SUSE-SU-2022:3955-1 |
| SUSE Enterprise Storage 7.1 | samba | 4.15.8+git.527.8d0c05d313e-150300.3.40.2 | SUSE-SU-2022:3955-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | samba | 4.15.8+git.527.8d0c05d313e-150400.3.14.1 | SUSE-SU-2022:3244-1 |
| openSUSE Leap 15.3 | samba | 4.15.8+git.527.8d0c05d313e-150300.3.40.2 | SUSE-SU-2022:3955-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.2 | samba | 4.15.8+git.527.8d0c05d313e-150300.3.40.2 | SUSE-SU-2022:3955-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | samba | 4.17.0-r0 | — |
| Alpine v3.23 | samba | 4.17.0-r0 | — |
| Alpine v3.22 | samba | 4.17.0-r0 | — |
| Alpine v3.21 | samba | 4.17.0-r0 | — |
| Alpine v3.20 | samba | 4.17.0-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | samba | 4.17.0-r0 | — |
| Alpine v3.18 | samba | 4.17.0-r0 | — |
| Alpine v3.14 | samba | 4.14.14-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | samba +29 | 2:4.17.5-0.amzn2023.0.2 | ALAS2023-2023-032 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | samba | No fix yet | — |
Advisories 3
- SUSE-SU-2022:3244-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3955-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2023-032 Important: samba security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 15, 2024