Security readout for executives and security teams
SSSD could fail open when it cannot read a Group Policy Object because server-side permissions are too strict. Instead of blocking access, it may allow authenticated users to log in, weakening intended access controls on systems relying on GPO enforcement. Exposure is most likely on systems using SSSD with Group Policy Objects to control login access. The bundle names SSSD but does not provide exact affected version ranges, so teams should map exposure against their distribution advisories. Handle as a moderate access-control risk. It is most urgent for domain-joined Linux systems where GPOs are used to restrict who can log in to administrative, production, or sensitive hosts. Mitigation focus: Apply SSSD updates from the relevant distribution advisory.; Check Red Hat, openSUSE, or Debian guidance for fixed package applicability.; Audit GPO permissions so SSSD can read required policy objects..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-16838 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.4MediumVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16838CVE reference · x_refsource_CONFIRM
- RHSA-2019:2177CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2019:2437CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2019:3651CVE reference · vendor-advisory, x_refsource_REDHAT
- https://lists.debian.org/debian-lts-announce/2023/05/msg00028.htmlCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.