Description
A flaw was found in sssd Group Policy Objects implementation. When the GPO is not readable by SSSD due to a too strict permission settings on the server side, SSSD will allow all authenticated users to login instead of denying access.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| [UNKNOWN] | sssd | — | — |
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 | sssd | 2.2.0-1 | — |
| Debian 13 | sssd | 2.2.0-1 | — |
| Debian 12 | sssd | 2.2.0-1 | — |
| Debian 10 | sssd | 1.16.3-3.2+deb10u1 | DLA-3436-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | sssd | 2.2.3-3ubuntu0.7 | USN-5067-1 |
| Ubuntu 18.04 LTS | sssd | 1.16.1-1ubuntu1.8 | USN-5067-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | sssd | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | sssd +29 | 2.2.0-19.el8 | RHSA-2019:3651 |
| RHEL 7 | imgbased +1 | 1.1.9-0.1.el7ev | RHSA-2019:2437 |
| RHEL 7 | ovirt-node-ng +2 | 4.3.5-0.20190717.0.el7ev | RHSA-2019:2437 |
| RHEL 7 | redhat-release-virtualization-host +1 | 4.3.5-2.el7ev | RHSA-2019:2437 |
| RHEL 7 | redhat-virtualization-host +1 | 4.3.5-20190722.0.el7_7 | RHSA-2019:2437 |
| RHEL 7 | sssd +33 | 1.16.4-21.el7 | RHSA-2019:2177 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | sssd | 1.16.1-3.24.6 | SUSE-SU-2019:1476-1 |
| SLES 15 | sssd | 1.16.1-3.24.6 | SUSE-SU-2019:1476-1 |
| SLES 12 SP4 | sssd | 1.16.1-4.12.2 | SUSE-SU-2019:1480-1 |
| SLES 12 SP3 | sssd | 1.13.4-34.37.1 | SUSE-SU-2019:1477-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | sssd | 1.16.1-4.12.2 | SUSE-SU-2019:1480-1 |
| SLES for SAP 12 SP3 | sssd | 1.13.4-34.37.1 | SUSE-SU-2019:1477-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | sssd | 2.9.3-2.1 | openSUSE-SU-2024:13446-1 |
| openSUSE Leap 15.1 | sssd | 1.16.1-lp151.7.3.1 | openSUSE-SU-2019:1589-1 |
| openSUSE Leap 15.0 | sssd | 1.16.1-lp151.7.3.1 | openSUSE-SU-2019:1589-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | sssd +33 | 1.16.4-21.amzn2 | ALAS2-2019-1343 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | sssd +29 | 2.2.0-19.el8 | ELSA-2019-3651 |
| Oracle Linux 7 | sssd +33 | 1.16.4-21.el7 | ELSA-2019-2177 |
Advisories 14
- WID-SEC-2022-0517 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- RHSA-2019:2437 Red Hat Security Advisory: Red Hat Virtualization security update Red Hat Security Advisories (RHSA) · Oct 8, 2026
- RHSA-2019:3651 Red Hat Security Advisory: sssd security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2019:2177 Red Hat Security Advisory: sssd security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-5067-1 sssd vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3436-1 sssd - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:1476-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13446-1 libipa_hbac-devel-2.9.3-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1480-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1477-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1589-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2019-3651 Low: sssd security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 14, 2019
- ALAS2-2019-1343 Moderate: sssd security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 30, 2019
- ELSA-2019-2177 Moderate: sssd security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 13, 2019
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16838
- openSUSE-SU-2019:1576 vendor-advisory
- openSUSE-SU-2019:1589 vendor-advisory
- RHSA-2019:2177 vendor-advisory
- RHSA-2019:2437 vendor-advisory
- RHSA-2019:3651 vendor-advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html