Description
The Samba Active Directory LDAP server was vulnerable to an information disclosure flaw because of missing access control checks. An authenticated attacker could use this flaw to extract confidential attribute values using LDAP search expressions. Samba versions before 4.6.16, 4.7.9 and 4.8.4 are vulnerable.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The Samba Team | samba | 4.6.16, 4.7.9, 4.8.4 | — |
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 | 2:4.8.4+dfsg-1 | — |
| Debian 13 | samba | 2:4.8.4+dfsg-1 | — |
| Debian 12 | samba | 2:4.8.4+dfsg-1 | — |
| Debian 9 | samba | 2:4.5.12+dfsg-2+deb9u3 | DSA-4271-1 |
| Debian 8 | samba | 2:4.2.14+dfsg-0+deb8u10 | DLA-1539-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | samba | 2:4.7.6+dfsg~ubuntu-0ubuntu2.2 | USN-3738-1 |
| Ubuntu 16.04 LTS | samba | 2:4.3.11+dfsg-0ubuntu0.16.04.15 | USN-3738-1 |
| Ubuntu 14.04 LTS | samba | 2:4.3.11+dfsg-0ubuntu0.14.04.16 | USN-3738-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | samba | 4.7.8+git.86.94b6d10f7dd-4.15.1 | SUSE-SU-2018:2318-1 |
| SLES 12 SP3 | samba | 4.6.16+git.124.aee309c5c18-3.32.1 | SUSE-SU-2018:3161-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | samba | 4.6.16+git.124.aee309c5c18-3.32.1 | SUSE-SU-2018:3161-1 |
| SUSE Enterprise Storage 5 | samba | 4.6.16+git.124.aee309c5c18-3.32.1 | SUSE-SU-2018:3161-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.14.6+git.182.2205d5224e3-1.1 | openSUSE-SU-2024:11365-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | samba | 4.8.4-r0 | — |
| Alpine v3.23 | samba | 4.8.4-r0 | — |
| Alpine v3.22 | samba | 4.8.4-r0 | — |
| Alpine v3.21 | samba | 4.8.4-r0 | — |
| Alpine v3.20 | samba | 4.8.4-r0 | — |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | samba | 4.8.4-r0 | — |
| Alpine v3.18 | samba | 4.8.4-r0 | — |
| Alpine v3.17 | samba | 4.8.4-r0 | — |
| Alpine v3.16 | samba | 4.8.4-r0 | — |
| Alpine v3.15 | samba | 4.8.4-r0 | — |
| Alpine v3.14 | samba | 4.8.4-r0 | — |
| Alpine v3.13 | samba | 4.8.4-r0 | — |
| Alpine v3.12 | samba | 4.8.4-r0 | — |
| Alpine v3.11 | samba | 4.8.4-r0 | — |
| Alpine v3.10 | samba | 4.8.4-r0 | — |
| Alpine v3.9 | samba | 4.8.4-r0 | — |
| Alpine v3.8 | samba | 4.8.4-r0 | — |
| Alpine v3.7 | samba | 4.7.6-r1 | — |
| Alpine v3.6 | samba | 4.6.16-r0 | — |
| Alpine v3.5 | samba | 4.5.16-r1 | — |
Advisories 7
- WID-SEC-2026-3118 Samba: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 31, 2026
- USN-3738-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4271-1 samba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1539-1 samba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11365-1 ctdb-4.14.6+git.182.2205d5224e3-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2318-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3161-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
References
- DSA-4271 vendor-advisory
- USN-3738-1 vendor-advisory
- https://www.samba.org/samba/security/CVE-2018-10919.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10919
- https://security.netapp.com/advisory/ntap-20180814-0001/
- 105081 vdb-entry
- GLSA-202003-52 vendor-advisory