Description
The samldb_check_user_account_control_acl function in dsdb/samdb/ldb_modules/samldb.c in Samba 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 does not properly check for administrative privileges during creation of machine accounts, which allows remote authenticated users to bypass intended access restrictions by leveraging the existence of a domain with both a Samba DC and a Windows DC, a similar issue to CVE-2015-2535.
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 | 2:4.1.22+dfsg-1 | — |
| Debian 13 | samba | 2:4.1.22+dfsg-1 | — |
| Debian 12 | samba | 2:4.1.22+dfsg-1 | — |
| Debian 8 | samba | 2:4.1.17+dfsg-2+deb8u1 | DSA-3433-1 |
| Debian 7 | samba | 2:3.6.6-6+deb7u6 | DSA-3433-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | samba | 2:4.3.3+dfsg-1ubuntu1 | — |
| Ubuntu 14.04 LTS | samba | 2:4.1.6+dfsg-1ubuntu2.14.04.11 | USN-2855-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | ldb | 1.1.24-4.1 | SUSE-SU-2015:2305-1 |
| SLES 12 SP1 | samba | 4.2.4-6.1 | SUSE-SU-2015:2305-1 |
| SLES 12 SP1 | talloc | 2.1.5-4.1 | SUSE-SU-2015:2305-1 |
| SLES 12 SP1 | tdb | 1.3.8-4.1 | SUSE-SU-2015:2305-1 |
| SLES 12 SP1 | tevent | 0.9.26-4.1 | SUSE-SU-2015:2305-1 |
| SLES 12 | ldb | 1.1.24-4.3.1 | SUSE-SU-2015:2304-1 |
| SLES 12 | samba | 4.1.12-18.3.1 | SUSE-SU-2015:2304-1 |
| SLES 12 | talloc | 2.1.5-3.4.1 | SUSE-SU-2015:2304-1 |
| SLES 12 | tdb | 1.3.8-2.3.1 | SUSE-SU-2015:2304-1 |
| SLES 12 | tevent | 0.9.26-3.3.1 | SUSE-SU-2015:2304-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | ldb | 1.1.24-4.1 | SUSE-SU-2015:2305-1 |
| SLES for SAP 12 SP1 | samba | 4.2.4-6.1 | SUSE-SU-2015:2305-1 |
| SLES for SAP 12 SP1 | talloc | 2.1.5-4.1 | SUSE-SU-2015:2305-1 |
| SLES for SAP 12 SP1 | tdb | 1.3.8-4.1 | SUSE-SU-2015:2305-1 |
| SLES for SAP 12 SP1 | tevent | 0.9.26-4.1 | SUSE-SU-2015:2305-1 |
| SLES for SAP 12 | ldb | 1.1.24-4.3.1 | SUSE-SU-2015:2304-1 |
| SLES for SAP 12 | samba | 4.1.12-18.3.1 | SUSE-SU-2015:2304-1 |
| SLES for SAP 12 | talloc | 2.1.5-3.4.1 | SUSE-SU-2015:2304-1 |
| SLES for SAP 12 | tdb | 1.3.8-2.3.1 | SUSE-SU-2015:2304-1 |
| SLES for SAP 12 | tevent | 0.9.26-3.3.1 | SUSE-SU-2015:2304-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.5.0-1.1 | openSUSE-SU-2024:10069-1 |
Advisories 6
- WID-SEC-2026-3111 Samba: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 31, 2026
- USN-2855-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3433-1 samba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2015:2304-1 Security update for ldb, samba, talloc, tdb, tevent SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10069-1 ctdb-4.5.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:2305-1 Security update for ldb, samba, talloc, tdb, tevent SUSE / openSUSE Security Updates · May 2, 2025
References
- 79735 vdb-entry
- openSUSE-SU-2016:1064 vendor-advisory
- USN-2855-2 vendor-advisory
- SUSE-SU-2015:2304 vendor-advisory
- SUSE-SU-2015:2305 vendor-advisory
- openSUSE-SU-2015:2354 vendor-advisory
- https://www.samba.org/samba/security/CVE-2015-8467.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1290294
- 1034493 vdb-entry
- DSA-3433 vendor-advisory
- GLSA-201612-47 vendor-advisory
- USN-2855-1 vendor-advisory
- openSUSE-SU-2015:2356 vendor-advisory
- https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=b000da128b5fb519d2d3f2e7fd20e4a25b7dae7d