Security readout for executives and security teams
This is a local privilege-boundary issue in systemd. A signed-in low-privileged user may be able to influence how polkit evaluates certain actions by spoofing an active seat value in the environment. Business impact is limited by local access and high complexity, but exposed multi-user Linux systems should be patched. Exposure is most likely on Linux hosts running vulnerable systemd packages before the vendor security update, especially systems with interactive local or remote shell users. The bundle includes Fedora, Debian LTS, and openSUSE advisories, but exact affected package versions must be confirmed from each vendor advisory. Treat this as a moderate patching item, not an emergency internet-facing incident. Prioritize shared Linux servers, bastions, development hosts, and environments where untrusted users can log in locally or via SSH. Mitigation focus: Apply systemd security updates from the operating system vendor.; Review Fedora, Debian LTS, openSUSE, or relevant vendor advisories for fixed package versions.; Prioritize multi-user servers and systems granting local shell or PAM login access..
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
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CWE-285: Exact CWE lookup
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Open ATT&CK lookupCVE-2019-3842 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
- 4.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
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:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L13.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
4.5MediumVector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3842CVE reference · x_refsource_CONFIRM
- FEDORA-2019-3fa5db9e19CVE reference · vendor-advisory, x_refsource_FEDORA
- 46743CVE reference · exploit, x_refsource_EXPLOIT-DB
- [debian-lts-announce] 20190424 [SECURITY] [DLA 1762-1] systemd security updateCVE reference · mailing-list, x_refsource_MLIST
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8CVE reference · mailing-list, x_refsource_MLIST
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8CVE reference · mailing-list, x_refsource_MLIST
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 Authorization
Improper Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.