Description
A flaw was found in the way samba handled file and directory permissions. An authenticated user could use this flaw to gain access to certain file and directory information which otherwise would be unavailable to the attacker.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | samba | samba 4.11.15, samba 4.12.9, samba 4.13.1 | — |
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 | 2:4.13.2+dfsg-2 | — |
| Debian 13 | samba | 2:4.13.2+dfsg-2 | — |
| Debian 12 | samba | 2:4.13.2+dfsg-2 | — |
| Debian 10 | samba | 2:4.9.5+dfsg-5+deb10u5 | DLA-3792-1 |
| Debian 9 | samba | 2:4.5.16+dfsg-1+deb9u3 | DLA-2463-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | samba | 2:4.11.6+dfsg-0ubuntu1.6 | USN-4611-1 |
| Ubuntu 18.04 LTS | samba | 2:4.7.6+dfsg~ubuntu-0ubuntu2.21 | USN-4611-1 |
| Ubuntu 16.04 LTS | samba | 2:4.3.11+dfsg-0ubuntu0.16.04.32 | USN-4611-1 |
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+esm11 | USN-4931-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | ctdb +24 | 4.13.3-3.el8 | RHSA-2021:1647 |
| RHEL 8 | openchange | 2.3-27.el8 | RHSA-2021:1647 |
| RHEL 7 | ctdb +26 | 4.10.16-9.el7_9 | RHSA-2020:5439 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Gluster Storage 3 | ctdb +20 | 4.11.6-112.el7rhgs | RHSA-2021:3723, RHBA-2021:1503 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | openchange | 2.3-27.el8 | ALSA-2021:1647 |
| AlmaLinux 8 | samba-devel +2 | 4.13.3-3.el8 | ALSA-2021:1647 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | openchange | 2.3-27.el8 | RLSA-2021:1647 |
| Rocky Linux 8 | samba | 4.13.3-3.el8 | RLSA-2021:1647 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | samba | 4.11.14+git.202.344b137b75d-4.14.1 | SUSE-SU-2020:3081-1 |
| SLES 15 SP1 | samba | 4.9.5+git.383.7b7f8f14df8-3.47.1 | SUSE-SU-2020:3092-1 |
| SLES 15 | samba | 4.7.11+git.280.25dfd9a947d-4.51.1 | SUSE-SU-2020:3087-1 |
| SLES 12 SP5 | samba | 4.10.18+git.219.1d732314d96-3.20.1 | SUSE-SU-2020:3082-1 |
| SLES 12 SP4 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
Show 20 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
| SLES 12 SP2 | samba | 4.4.2-38.39.1 | SUSE-SU-2020:3083-1 |
| SLES 11 SP4 | samba +1 | 3.6.3-94.31.1 | SUSE-SU-2020:14525-1 |
| SLES 2 | samba | 4.9.5+git.383.7b7f8f14df8-3.47.1 | SUSE-SU-2020:3092-1, SUSE-SU-2020:3081-1 |
| SLES for SAP 15 | samba | 4.7.11+git.280.25dfd9a947d-4.51.1 | SUSE-SU-2020:3087-1 |
| SLES for SAP 12 SP5 | samba | 4.10.18+git.219.1d732314d96-3.20.1 | SUSE-SU-2020:3082-1 |
| SLES for SAP 12 SP4 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
| SLES for SAP 12 SP3 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
| SLES for SAP 12 SP2 | samba | 4.4.2-38.39.1 | SUSE-SU-2020:3083-1 |
| SLE HPC 15 | samba | 4.7.11+git.280.25dfd9a947d-4.51.1 | SUSE-SU-2020:3087-1 |
| SUSE OpenStack Cloud Crowbar 9 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
| SUSE OpenStack Cloud Crowbar 8 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
| SUSE OpenStack Cloud 9 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
| SUSE OpenStack Cloud 8 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
| SUSE OpenStack Cloud 7 | samba | 4.4.2-38.39.1 | SUSE-SU-2020:3083-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | samba +1 | 3.6.3-94.31.1 | SUSE-SU-2020:14525-1 |
| SUSE HPE Helion OpenStack 8 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
| SUSE Enterprise Storage 7 | samba | 4.13.3+git.181.fc4672a5b81-3.3.1 | SUSE-SU-2021:0185-1 |
| SUSE Enterprise Storage 6 | samba | 4.9.5+git.383.7b7f8f14df8-3.47.1 | SUSE-SU-2020:3092-1 |
| SUSE Enterprise Storage 5 | samba | 4.6.16+git.248.c833312e640-3.58.1 | SUSE-SU-2020:3093-1 |
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 15.2 | samba | 4.11.14+git.202.344b137b75d-lp152.3.16.1 | openSUSE-SU-2020:1819-1 |
| openSUSE Leap 15.1 | samba | 4.9.5+git.383.7b7f8f14df8-lp151.2.36.1 | openSUSE-SU-2020:1811-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | samba | 4.12.9-r0 | — |
| Alpine v3.23 | samba | 4.12.9-r0 | — |
| Alpine v3.22 | samba | 4.12.9-r0 | — |
| Alpine v3.21 | samba | 4.12.9-r0 | — |
| Alpine v3.20 | samba | 4.12.9-r0 | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | samba | 4.12.9-r0 | — |
| Alpine v3.18 | samba | 4.12.9-r0 | — |
| Alpine v3.17 | samba | 4.12.9-r0 | — |
| Alpine v3.16 | samba | 4.12.9-r0 | — |
| Alpine v3.15 | samba | 4.12.9-r0 | — |
| Alpine v3.14 | samba | 4.12.9-r0 | — |
| Alpine v3.13 | samba | 4.12.9-r0 | — |
| Alpine v3.12 | samba | 4.12.9-r0 | — |
| Alpine v3.11 | samba | 4.11.16-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | ctdb +26 | 4.10.16-9.amzn2.0.1 | ALAS2-2021-1585 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | samba | 4.18.3-1 | — |
| Azure Linux 2 (CBL-Mariner) | samba | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | ctdb +24 | 4.13.3-3.el8 | ELSA-2021-1647 |
| Oracle Linux 8 | openchange | 2.3-27.0.1.el8 | ELSA-2021-1647 |
| Oracle Linux 7 | ctdb +26 | 4.10.16-9.el7_9 | ELSA-2020-5439 |
Advisories 25
- ALSA-2021:1647 Moderate: samba security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- USN-4931-1 samba vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- RHSA-2021:1647 Red Hat Security Advisory: samba security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2020:5439 Red Hat Security Advisory: samba security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-4611-1 samba vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-3792-1 samba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2463-1 samba - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2021:3723 Red Hat Security Advisory: samba security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Feb 24, 2026
- RHBA-2021:1503 Red Hat Bug Fix Advisory: samba bug fix update Red Hat Security Advisories (RHSA) · Feb 24, 2026
- RLSA-2021:1647 Moderate: samba security, bug fix, and enhancement update Rocky Linux Security Advisories · 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
- SUSE-SU-2020:3083-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3092-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:14525-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3087-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1819-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3093-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1811-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0185-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3082-1 Security update for samba SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3081-1 Security update for samba SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-0174 Samba: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 22, 2024
- ELSA-2021-1647 Moderate: samba security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
- ALAS2-2021-1585 Critical: samba security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jan 6, 2021
- ELSA-2020-5439 Moderate: samba security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 16, 2020