Description
The System Security Services Daemon (SSSD) 1.11.6 does not properly identify group membership when a non-POSIX group is in a group membership chain, which allows local users to bypass access restrictions via unspecified vectors.
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 | 1.11.7-1 | — |
| Debian 13 | sssd | 1.11.7-1 | — |
| Debian 12 | sssd | 1.11.7-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | sssd +24 | 1.12.2-58.el7 | RHBA-2015:0441 |
| RHEL 6 | sssd +20 | 1.11.6-30.el6 | RHBA-2014:1375 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | sssd | 1.11.5.1-28.1 | SUSE-SU-2016:2579-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | sssd | 1.11.5.1-28.1 | SUSE-SU-2016:2579-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | sssd | 1.14.2-3.1 | openSUSE-SU-2024:10427-1 |
Advisories 4
- RHBA-2015:0441 Red Hat Bug Fix Advisory: sssd bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHBA-2014:1375 Red Hat Bug Fix Advisory: sssd bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- openSUSE-SU-2024:10427-1 libipa_hbac-devel-1.14.2-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2579-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 2026