Description
It was found that sssd's sysdb_search_user_by_upn_res() function before 1.16.0 did not sanitize requests when querying its local cache and was vulnerable to injection. In a centralized login environment, if a password hash was locally cached for a given user, an authenticated attacker could use this flaw to retrieve it.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SSSD | sssd | 1.16.0 | — |
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 | 1.15.3-2 | — |
| Debian 13 | sssd | 1.15.3-2 | — |
| Debian 12 | sssd | 1.15.3-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | sssd | 1.13.4-1ubuntu1.10 | USN-3526-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | sssd +33 | 1.15.2-50.el7_4.8 | RHSA-2017:3379 |
| RHEL 6 | ding-libs | 0.4.0-13.el6 | RHSA-2018:1877 |
| RHEL 6 | libbasicobjects +1 | 0.1.1-13.el6 | RHSA-2018:1877 |
| RHEL 6 | libcollection +1 | 0.6.2-13.el6 | RHSA-2018:1877 |
| RHEL 6 | libdhash +1 | 0.4.3-13.el6 | RHSA-2018:1877 |
| RHEL 6 | libini_config +1 | 1.1.0-13.el6 | RHSA-2018:1877 |
| RHEL 6 | libpath_utils +1 | 0.2.1-13.el6 | RHSA-2018:1877 |
| RHEL 6 | libref_array +1 | 0.1.4-13.el6 | RHSA-2018:1877 |
| RHEL 6 | sssd +24 | 1.13.3-60.el6 | RHSA-2018:1877 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | sssd | 1.13.4-34.7.1 | SUSE-SU-2017:2937-1 |
| SLES 12 SP2 | sssd | 1.13.4-34.7.1 | SUSE-SU-2017:2937-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | sssd | 1.13.4-34.7.1 | SUSE-SU-2017:2937-1 |
| SLES for SAP 12 SP2 | sssd | 1.13.4-34.7.1 | SUSE-SU-2017:2937-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | sssd | 2.5.2-1.4 | openSUSE-SU-2024:11408-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | sssd +33 | 1.15.2-50.el7_4.8 | ELSA-2017-3379 |
Advisories 7
- WID-SEC-2026-3117 Red Hat Enterprise Linux: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Aug 31, 2026
- RHSA-2018:1877 Red Hat Security Advisory: sssd and ding-libs security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- RHSA-2017:3379 Red Hat Security Advisory: sssd security and bug fix update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- USN-3526-1 sssd vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2024:11408-1 libipa_hbac-devel-2.5.2-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2937-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2017-3379 Moderate: sssd security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Dec 4, 2017
References
- RHSA-2017:3379 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12173
- RHSA-2018:1877 vendor-advisory