Is CVE-2018-16866 actively exploited?

CVE-2018-16866 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2018-16866?

CVE-2018-16866 has a CVSS score of 3.3 (LOW severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

How do I patch CVE-2018-16866?

Patch guidance is available from systemd project security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-16866.

CVE-2018-16866 - remediation guidance & executive summary

Q: Which products are affected by CVE-2018-16866?

27 products: systemd project systemd, debian debian linux, canonical ubuntu linux, canonical ubuntu linux, canonical ubuntu linux, and 22 more.

Description

An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none
Weaknesses: CWE-125 · Out-of-bounds Read CWE-200 · Information Disclosure CWE-125 · Out-of-bounds Read

Metadata

Primary Vendor: SYSTEMD_PROJECT
Published: 1/11/2019
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

systemd_project : systemddebian : debian_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linuxnetapp : active_iq_performance_analytics_servicesnetapp : element_softwareredhat : enterprise_linuxredhat : enterprise_linux_compute_node_eusredhat : enterprise_linux_desktopredhat : enterprise_linux_for_ibm_z_systems_\(structure_a\)redhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_power_big_endianredhat : enterprise_linux_for_power_big_endian_eusredhat : enterprise_linux_for_power_little_endianredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_scientific_computingredhat : enterprise_linux_serverredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsredhat : enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsredhat : enterprise_linux_server_tusredhat : enterprise_linux_server_tusredhat : enterprise_linux_server_update_services_for_sap_solutionsredhat : enterprise_linux_server_update_services_for_sap_solutionsredhat : enterprise_linux_workstation

Remediation Guidance

Executive Summary

Cite this page

CVE-2018-16866. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2018-16866

View on NIST NVD

CVE-2018-16866 vulnerability