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TI-2016-06547 Aliases CVE-2016-7795GHSA-r5cr-2q2m-4c59

The manager_invoke_notify_message function in systemd 231 and earlier allows local users…

Priority LOW 26CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

The manager_invoke_notify_message function in systemd 231 and earlier allows local users to cause a denial of service (assertion failure and PID 1 hang) via a zero-length message received over a notify socket.

Why it matters now

EPSS 0.00628 50th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*up to 231Vulnerablesystemd
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* Versions up to 231 Vulnerable ·systemd

Remediation

Red Hat 2 advisories

  • RHSA-2016:2694 Released 2016-11-09 · Red Hat rating Moderate
    systemd security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.2) libgudev1-219-19.el7_2.18, systemd-219-19.el7_2.18, systemd-libs-219-19.el7_2.18 +2
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.2) libgudev1-devel-219-19.el7_2.18, systemd-devel-219-19.el7_2.18, systemd-journal-gateway-219-19.el7_2.18 +2
    • Red Hat Enterprise Linux Server EUS (v. 7.2) libgudev1-219-19.el7_2.18, libgudev1-219-19.el7_2.18.ppc, libgudev1-devel-219-19.el7_2.18 +8
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.2) systemd-journal-gateway-219-19.el7_2.18, systemd-networkd-219-19.el7_2.18, systemd-resolved-219-19.el7_2.18 +1
  • RHSA-2016:2610 Released 2016-11-03 · Red Hat rating Moderate
    systemd security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) libgudev1-219-30.el7_3.3, systemd-219-30.el7_3.3, systemd-libs-219-30.el7_3.3 +2
    • Red Hat Enterprise Linux Client Optional (v. 7) libgudev1-devel-219-30.el7_3.3, systemd-devel-219-30.el7_3.3, systemd-journal-gateway-219-30.el7_3.3 +2
    • Red Hat Enterprise Linux ComputeNode (v. 7) libgudev1-219-30.el7_3.3, systemd-219-30.el7_3.3, systemd-libs-219-30.el7_3.3 +2
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libgudev1-devel-219-30.el7_3.3, systemd-devel-219-30.el7_3.3, systemd-journal-gateway-219-30.el7_3.3 +2
    • Red Hat Enterprise Linux Server (v. 7) libgudev1-219-30.el7_3.3, libgudev1-219-30.el7_3.3.ppc, libgudev1-devel-219-30.el7_3.3 +8
    • Red Hat Enterprise Linux Server Optional (v. 7) systemd-journal-gateway-219-30.el7_3.3, systemd-networkd-219-30.el7_3.3, systemd-resolved-219-30.el7_3.3 +1
    • Red Hat Enterprise Linux Workstation (v. 7) libgudev1-219-30.el7_3.3, libgudev1-devel-219-30.el7_3.3, systemd-219-30.el7_3.3 +4
    • Red Hat Enterprise Linux Workstation Optional (v. 7) systemd-journal-gateway-219-30.el7_3.3, systemd-networkd-219-30.el7_3.3, systemd-resolved-219-30.el7_3.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:2610
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:2610
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2016:2610
Red Hat Enterprise Linux ComputeNode EUS (v. 7.2)Fixed RHSA-2016:2694
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:2610
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.2)Fixed RHSA-2016:2694
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2610
Red Hat Enterprise Linux Server EUS (v. 7.2)Fixed RHSA-2016:2694
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:2610
Red Hat Enterprise Linux Server Optional EUS (v. 7.2)Fixed RHSA-2016:2694
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2610
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:2610

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-7795
  2. 2026-10-03 Alias added: GHSA-r5cr-2q2m-4c59
  3. 2026-10-29 EPSS moved to the 50th–90th percentile

References

Exploit 2

Advisory 5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences