Description
A flaw was found in samba 4.0.0 before samba 4.9.15 and samba 4.10.x before 4.10.10. An attacker can crash AD DC LDAP server via dirsync resulting in denial of service. Privilege escalation is not possible with this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Samba | samba | samba 4.0.0 before samba 4.9.15, samba 4.10.x before 4.10.10 | — |
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 | 2:4.11.0+dfsg-6 | — |
| Debian 13 | samba | 2:4.11.0+dfsg-6 | — |
| Debian 12 | samba | 2:4.11.0+dfsg-6 | — |
| Debian 10 | samba | 2:4.9.5+dfsg-5+deb10u4 | DLA-3563-1 |
| Debian 9 | samba | 2:4.5.16+dfsg-1+deb9u4 | DLA-2668-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | samba | 2:4.7.6+dfsg~ubuntu-0ubuntu2.13 | USN-4167-1 |
| Ubuntu 16.04 LTS | samba | 2:4.3.11+dfsg-0ubuntu0.16.04.23 | USN-4167-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | samba | 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3 | USN-4167-2 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | samba | 4.9.5+git.210.ab0549acb05-3.14.1 | SUSE-SU-2019:2866-1 |
| SLES 15 | samba | 4.7.11+git.186.d75219614c3-4.30.1 | SUSE-SU-2019:2868-1 |
| SLES 12 SP5 | ldb | 1.5.8-3.5.1 | SUSE-SU-2020:2673-1 |
| SLES 12 SP5 | samba | 4.10.17+git.203.862547088ca-3.14.1 | SUSE-SU-2020:2673-1 |
| SLES 2 | samba | 4.9.5+git.210.ab0549acb05-3.14.1 | SUSE-SU-2019:2866-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | ldb | 1.5.8-3.5.1 | SUSE-SU-2020:2673-1 |
| SLES for SAP 12 SP5 | samba | 4.10.17+git.203.862547088ca-3.14.1 | SUSE-SU-2020:2673-1 |
| SUSE Enterprise Storage 6 | samba | 4.9.5+git.210.ab0549acb05-3.14.1 | SUSE-SU-2019:2866-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.14.6+git.182.2205d5224e3-1.1 | openSUSE-SU-2024:11365-1 |
| openSUSE Leap 15.1 | samba | 4.9.5+git.210.ab0549acb05-lp151.2.9.1 | openSUSE-SU-2019:2442-1 |
| openSUSE Leap 15.0 | samba | 4.7.11+git.186.d75219614c3-lp150.3.18.2 | openSUSE-SU-2019:2458-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.10 | samba | 4.10.10-r0 | — |
| Alpine v3.9 | samba | 4.8.12-r1 | — |
| Alpine v3.8 | samba | 4.8.12-r1 | — |
Advisories 11
- USN-4167-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-4167-2 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-3563-1 samba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2668-1 samba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2019:2458-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2673-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 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
- openSUSE-SU-2019:2442-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2866-1 Security update for samba SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2019:2868-1 Security update for samba SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-2366 Samba: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 14, 2023
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14847
- https://www.samba.org/samba/security/CVE-2019-14847.html
- https://www.synology.com/security/advisory/Synology_SA_19_35
- openSUSE-SU-2019:2458 vendor-advisory
- FEDORA-2019-703e299870 vendor-advisory
- FEDORA-2019-460ad648e7 vendor-advisory
- [debian-lts-announce] 20210529 [SECURITY] [DLA 2668-1] samba security update mailing-list
- [debian-lts-announce] 20230914 [SECURITY] [DLA 3563-1] samba security update mailing-list