CVE-2018-15687 - CVE House
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Status published High CVE-2018-15687

systemd: chown_one() can dereference symlinks

Vulnerability Description

A race condition in chown_one() of systemd allows an attacker to cause systemd to set arbitrary permissions on arbitrary files. Affected releases are systemd versions up to and including 239.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Jann Horn

References

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Affected Vendor

Affected Software

systemd
Vulnerable Versions:
unspecified

Timeline

Official Publish: October 26th, 2018
Last Modified: June 9th, 2025
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.