Improper Privilege Management Affecting sssd package, versions <2.2.0-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published4 Aug 2026
- disclosed25 Mar 2019
Introduced: 25 Mar 2019
CVE-2018-16838 (opens in a new tab)How to fix?
Upgrade Echo:latest sssd to version 2.2.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream sssd package and not the sssd package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.
References
- https://advisory.echohq.com/cve/CVE-2018-16838
- https://access.redhat.com/security/cve/CVE-2018-16838
- https://bugzilla.redhat.com/show_bug.cgi?id=1640820
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00042.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00051.html
- https://access.redhat.com/errata/RHSA-2019:2177
- https://access.redhat.com/errata/RHSA-2019:2437
- https://access.redhat.com/errata/RHSA-2019:3651
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16838
- https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html