Description
The UNIX pipe which sudo uses to contact SSSD and read the available sudo rules from SSSD has too wide permissions, which means that anyone who can send a message using the same raw protocol that sudo and SSSD use can read the sudo rules available for any user. This affects versions of SSSD before 1.16.3.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| [UNKNOWN] | sssd | SSSD 1.16.3 | — |
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 | 1.16.3-1 | — |
| Debian 13 | sssd | 1.16.3-1 | — |
| Debian 12 | sssd | 1.16.3-1 | — |
| Debian 8 | sssd | 1.11.7-3+deb8u1 | DLA-1429-1 |
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 7 | sssd +33 | 1.16.2-13.el7 | RHSA-2018:3158 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | sssd | 1.16.1-3.3.1 | SUSE-SU-2018:2144-1 |
| SLES 12 SP4 | sssd | 1.16.1-4.3.2 | SUSE-SU-2019:0556-1 |
| SLES 12 SP3 | sssd | 1.13.4-34.23.1 | SUSE-SU-2019:0081-1 |
| SLES 12 SP2 | sssd | 1.13.4-34.23.1 | SUSE-SU-2019:0081-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | sssd | 1.16.1-4.3.2 | SUSE-SU-2019:0556-1 |
| SLES for SAP 12 SP3 | sssd | 1.13.4-34.23.1 | SUSE-SU-2019:0081-1 |
| SLES for SAP 12 SP2 | sssd | 1.13.4-34.23.1 | SUSE-SU-2019:0081-1 |
| SUSE OpenStack Cloud 7 | sssd | 1.13.4-34.23.1 | SUSE-SU-2019:0081-1 |
| SUSE Enterprise Storage 4 | sssd | 1.13.4-34.23.1 | SUSE-SU-2019:0081-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | sssd | 2.5.2-1.4 | openSUSE-SU-2024:11408-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | sssd +33 | 1.16.2-13.amzn2.0.1 | ALAS2-2018-1127 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | sssd +33 | 1.16.2-13.el7 | ELSA-2018-3158 |
Advisories 10
- WID-SEC-2026-3120 Red Hat Enterprise Linux: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Aug 31, 2026
- RHSA-2018:3158 Red Hat Security Advisory: sssd security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jul 1, 2026
- USN-5067-1 sssd vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-1429-1 sssd - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2018:2144-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 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-2019:0556-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0081-1 Security update for sssd SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2018-1127 Low: sssd security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 19, 2018
- ELSA-2018-3158 Low: sssd security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 5, 2018
References
- [debian-lts-announce] 20180716 [SECURITY] [DLA 1429-1] sssd security update mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10852
- RHSA-2018:3158 vendor-advisory
- 104547 vdb-entry